Our results depict a ‘Great Ediacaran Glaciation’ occurring diachronously but continuously from ca. 580–560 Ma as different continents migrated through polar–temperate latitudes. The succession of radiation, turnover and extinction of the Ediacara biota strongly reflects glacial–deglacial dynamics. carbonate carbon isotopes, Shuram ...1. Introduction. The late Ediacaran to early Cambrian interval encompasses the Gaskiers glaciation (~580 Ma), the first appearance of complex macroscopic life (~575 Ma), mobile biota (≤560 Ma), skeletal metazoans (~550 Ma), and the origin of modern metazoan phyla (Wood et al., 2019).Understanding the temporal and spatial context of …The Ediacaran period spans nearly 100 million years below the base of the Cambrian period, 542 million years ago. Its upper boundary is defined by the appearance of preserved complex burrows ...The Neoproterozoic Era is the unit of geologic time from 1 billion to 538.8 million years ago. [2] It is the last era of the Precambrian Supereon and the Proterozoic Eon; it is subdivided into the Tonian, Cryogenian, and Ediacaran periods. It is preceded by the Mesoproterozoic Era and succeeded by the Paleozoic Era of the Phanerozoic Eon. Introduction. The Ediacaran–Cambrian (E–C) transition arguably marks the most important geobiological revolution of the past billion years, characterized by large perturbations to global geochemical cycles, a permanent step-change in the character of the sedimentary record, the rise of macroscopic eukaryotic life, and potentially one or more pulses of mass extinction. vi. Cortijo, I.; Marti Mus, M.; Jensen, S.; Palacios, T. A new species of Cloudina from the terminal Edicaran of Spain, Precambrian Research 176(1-4): 1- 10 ...The Ediacaran contains evidence for a number of important evolutionary milestones, including fossils thought to represent evidence of the first animal movement, biomineralization (the formation of hard shells or spicules), predation and reefs. Perhaps the most infamous Ediacaran fossils, however, are those of the Ediacaran biota. In this episode of the Encyclopedia of Life podcast, One Species at a Time, reporter Ari Daniel Shapiro introduces us to one of the marine fossils that's helping revitalize Ward's community. The frond fossil Trepassia wardae lived on the ocean floor 580 million years ago, now it's part of the Mistaken Point Ecological Reserve. This podcast was ... During the Ediacaran period, about 635 million to 541 million years ago, oxygen was sparse, the oceans were murky and marine organisms ate by absorbing nutrients floating around in the water.The earliest macro-organisms only appear in the late Ediacaran Period, ~575 million years ago, with specimens from Newfoundland currently thought to be amongst the oldest. The term 'Ediacara biota'/'Ediacaran biota' has been widely used to describe those soft-bodied, macroscopic fossils in the key localities of the White Sea (Russia), South ... The Ediacaran is known for its wide variety of fossils, notably body and trace fossils, left by soft-bodied multicellular fauna unique to the middle and late Ediacaran (ca. 575–541 Ma 6,7).Charnia is an extinct genus of frond-like lifeforms belonging to the Ediacaran biota with segmented, leaf-like ridges branching alternately to the right and left from a zig-zag medial suture (thus exhibiting glide reflection, or opposite isometry).The genus Charnia was named for Charnwood Forest in Leicestershire, England, where the first fossilised specimen was …The Ediacaran Period named after the Ediacara Hills of South Australia, is the last geological period of the Neoproterozoic Era and of the Proterozoic Eon, ...List of Ediacaran genera. This is a list of all described Ediacaran genera, including the Ediacaran biota. It contains 227 genera. Bilaterally symmetric organism with ovoid shape, and midline axial zone. Junior synonym of Onegia nenoxa (according to Grazhdankin, Ph.D. ms.). [15] [16] 8 Dec 2014 ... The right conditions are essential for the discovery and description of Edicaran fossil impressions. In the low angle light of the late ...Jul 11, 2019 · The Ediacaran Period lasts from the end of the Cryogenian Period (635 million years ago) to the start of the Cambrian Period (~541 million years ago). The Ediacaran is named after South Australia's Ediacara Hills. Image credit: NASA Astrobiology. Scientists have performed a detailed sedimentological and chemostratigraphic study of the Dengying ... Hapsidophyllas flexibilis new genus and species and Frondophyllas grandis new genus and species are rare Ediacaran (ca. 565 Ma) rangeomorph forms, herein termed “hapsidophyllids,” which are endemic to Mistaken Point, Newfoundland, Canada. These two taxa are highly disparate in overall morphology, the former being a low-level, …The Ediacaran–Cambrian (E–C) transition marks the most important geobiological revolution of the past billion years, including the Earth’s first crisis of macroscopic eukaryotic life, and its most spectacular evolutionary diversification. Here, we describe competing models for late Ediacaran extinction, summarize evidence for these …9781862392335. Publication date: January 01, 2007. The Proterozoic and early Phanerozoic was a time punctuated by a series of significant events in Earth history. Glaciations of global scale wracked the planet, interfingered with dramatic changes in oceanic and atmospheric chemistry and marked changes in continental configuration.Nov 13, 2017 · The Ediacaran, meanwhile, hosted some forms of life completely unfamiliar to us. Scientists call them the “ Ediacaran biota .” Researchers know that these two groups of creatures overlapped. ported “Cambrian survivors” of Ediacaran taxa (Hagadorn et al., 2000; Jensen et al., 1998), but more taphonomic and taxonomic studies are nec - essary to demonstrate that they are in fact true Ediacaran holdovers (Laflamme et al., 2013). Two general classes of hypotheses have been proposed to explain the disappearance of the …Dec 8, 2021 · Sack-like body fossils Finkoella ukrainica gen. et sp. nov. and F. oblonga sp. nov., and reticulate fossil Pharyngomorpha reticulata gen. et sp. nov. are described from the upper Ediacaran shallow-marine deposits of Ukraine, which are no younger than 557 Ma. The first two resemble the flattened bodies of tunicates showing mainly the outline of tunica, while the third is considered as a ... The Ediacaran biota are the fauna of the Ediacaran period. This geological period was from 635–542 million years ago, but the fossil biota was only from 575–542 million years ago. This was after a series of ice ages and just before the Cambrian period. The biota consists of soft-bodied multicellular organisms, probably animals, which left ... Feb 7, 2022 · The exceptionally preserved Ediacaran embryo-like fossils (EELFs) with cellular and subcellular structures have great potential to deepen our understanding of the gap between the fossil records and the molecular clock estimates, since they were initially described as animal embryos and thought to ‘open a new era in the study of early animal ... 17 Dec 2012 ... Specimen of Edicaran Dickinsonia (credit: Wikipedia). If Retallack's sedimentological observations are confirmed then organisms found in the ...Crown-group Arthropoda ranges from mid-Ediacaran to just prior to the Ediacaran–Cambrian boundary (589–540 Ma), the Ediacaran–Cambrian boundary being constrained to 538.8–538.6 Ma by recent radiometric dating (Linneman et al. 2019). Crown-group Nematoida yielded the least precise range of estimates for a supra-phylum level …Ediacaran sediments record the termination of Cryogenian “snowball Earth” glaciations, preserve the first occurrences of macroscopic metazoans, and contain one of the largest known negative δ 13 C excursions (the Shuram-Wonoka). The rock record for the transition between the Proterozoic and Phanerozoic in North America is also physically …The Ediacaran–Cambrian boundary is marked by the appearance of Treptichnus pedum (Droser and Li, 2001, Valentine, 2002). Download : Download full-size image; Fig. 7. Paleogeographic reconstruction of Tommotian time. Archaeocyathin realms of Tommotian/Atdabanian time are restricted to the humid tropical zone.The fossil record of the terminal Ediacaran Period is typified by the iconic index fossil Cloudina and its relatives. These tube-dwellers are presumed to be primitive metazoans, but resolving ...12 Dec 2012 ... In his closing paragraph, Retallack outlines implications for a variety of other Edicaran fossils, that could have been lichens, other ...Edicaran biota—which so far have been found on five continents—represent “an important development in the evolution of life on Earth, because they immediately predate the explosion of life ...An overview of Ediacaran fauna as seen through the fossils.The terminal Ediacaran Dengying Formation is one of only two known places on Earth where Ediacara-type macrofossils are found alongside skeletal fossils of bilaterial animals, and in a series of rock units that are laid in chronological order. This formation is estimated to have been deposited in less that 12.3 million years (from 551.1 to 538. ...Nov 13, 2017 · The Ediacaran, meanwhile, hosted some forms of life completely unfamiliar to us. Scientists call them the “ Ediacaran biota .” Researchers know that these two groups of creatures overlapped. Spriggina floundersi is the oldest fossil organism to be described with a "head". The fossil was originally described as a polychaete worm (commonly referred to as bristle worms), where subjective conclusions about its worm-like morphology were drawn from the fossil impressions. A current and objective morphological analysis is overdue.19 Jun 2023 ... The reason for this is that the Edicaran fossils, which are believed to be the oldest creatures that lived on the planet about 550 million ...17 Feb 2024 ... Taylor Swift as Edicaran fauna: a thread. a fine array of flappy boys at the bottom of an ocean. read image description.The Ediacaran period is a geological period of the Neoproterozoic era that spans 96 million years from the end of the Cryogenian period at 635 Mya, to the beginning of the Cambrian period at 538.8 Mya. It is the last period of the Proterozoic eon as well as the last of the so-called "Precambrian … See moreThe Ediacaran DST was deposited in this passive continental margin. According to the paleo-geographic reconstructions based on various strata outcrops widely distributing in South China, the paleo-environments of DST include inner shelf, lagoon, outer shelf, slope and oceanic basin (Muscente et al., 2015, Li et al., 2016). The DST consists ...Ediacaran faunatumblr : http://palaeopedia.tumblr.com/Geocities : http://www.geocities.co.jp/NatureLand/5218/Illustration by Satoshi KawasakiThe die-off happened towards the end of the Ediacaran period, which lasted from 635 to 541 million years ago. The earliest known complex animals lived at this time, including many soft-bodied ...Apr 20, 2015 · In most Ediacaran cases, the same taxa are present on most of the beds, but it is the varying abundances of each that characterize these assemblages. For example, Dickinsonia and the frond holdfast Aspidella both occur on nearly all of the beds, but in some cases, Dickinsonia dominates beds and in others, Aspidella dominates, indicating the ... Mar 13, 2014 · The Ediacaran is dated between 635 and 540 million years ago. It preceded the Cambrian period, about 540 to 485 million years ago, which marked the beginning of one of the biggest explosions of life in the history of Earth. For a long time, scientists thought the Cambrian period was when multicellular life first ran rampant. Category: research Geobiologists shine new light on Earth’s first known mass extinction event 550 million years ago. The work, led by postdoctoral associate Scott Evans, shows a major loss of diversity during the Ediacaran Period, which lasted from 635 million to 540 million years ago, with decreased global oxygen levels invoked as a major cause of mass deaths of scores of species. May 17, 2022 · The die-off happened towards the end of the Ediacaran period, which lasted from 635 to 541 million years ago. The earliest known complex animals lived at this time, including many soft-bodied ... Nov 3, 2021 · The Ediacaran Period [635 to 539 million years (Ma) ago] is a pivotal period in Earth history, archiving the rise of complex macroscopic life . This evolutionary milestone occurred in the aftermath of extreme climate perturbations, the Cryogenian snowball Earth events , and amid several perturbations to the carbon cycle. Feb 16, 2011 · The Lantian fossils were collected from early Ediacaran slope-basinal black shales in southern Anhui Province, South China ().The Ediacaran System in southern Anhui consists of two formations ... Welcome to Ediacaran.org! This website is dedicated to bringing the fascinating rocks and fossils of the Ediacaran Period, which spanned 635 to 541 million years ago, to the attention of the wider world. Throughout Earth history many evolutionary, geological and climatic events have shaped the planet on which we live. Ediacaran Period, at the stratigraphic level originally proposed by Cloud and Glaessner. This proposal was approved by the International Commission on Strati-graphy and ratified by the International Union of Geological Sciences in late March 2004. The new Ediacaran Period reflects the Subcommis-sion’s identification of an initial GSSP that can be 20 Sept 2018 ... “Scientists have been fighting for more than 75 years over what Dickinsonia and other bizarre fossils of the Edicaran Biota were: giant ...20 Sept 2018 ... "Scientists have been fighting for more than 75 years over what Dickinsonia and other bizarre fossils of the Edicaran Biota were: giant ...The Ediacaran Period is an interval of geological time ranging 635 to 541 million years ago. It was a time of immense geological and biological change, and records the transition from a planet largely dominated by microscopic organisms, to a Cambrian world swarming with animals. It is therefore one of the most fascinating and unique periods in ...Jan 1, 2020 · The Ediacaran Period (635–538 Ma) has the longest duration among all stratigraphically defined geological periods. The basal boundary of the Ediacaran System is defined by a horizon near the base of the Nuccaleena Formation overlying the Cryogenian diamictite of the Elatina Formation at the Enorama Creek section in South Australia. 17 Feb 2024 ... Taylor Swift as Edicaran fauna: a thread. a fine array of flappy boys at the bottom of an ocean. read image description.The Ediacaran Period (635 to 541 Ma) marks the global transition to a more productive biosphere, evidenced by increased availability of food and oxidants, the appearance of macroscopic animals, significant populations of eukaryotic phytoplankton, and the onset of massive phosphorite deposition. We propose this entire suite of changes results ...Spriggina floundersi is the oldest fossil organism to be described with a "head". The fossil was originally described as a polychaete worm (commonly referred to as bristle worms), where subjective conclusions about its worm-like morphology were drawn from the fossil impressions. A current and objective morphological analysis is overdue.The Ediacaran Period is a pivotal period in Earth history, archiving the rise of complex macroscopic life. This evolutionary milestone occurred in the aftermath of extreme climate perturbations, the Cryogenian snowball Earth events, and amid dramatic changes in the global carbon cycle and ocean redox conditions.Fig. 2. Preservation of Ediacaran fossils in the Yorgia bed at Zimnie Gory. Specimens housed at the Paleontological Institute, Moscow (PIN). A. Yorgia waggoneri, specimen PIN 3993/5018 (illustrated also in Dzik and Ivantsov, 1999, fig. 1B) showing anterior part preserved as sole cast (presumably sediment penetrated interior of the body …Throughout the Ediacaran Period, variable water-column redox conditions persisted along productive ocean margins due to a complex interplay between nutrient supply and oceanographic restriction. These changing conditions are considered to have influenced early faunal evolution, with marine anoxia potentially inhibiting the development of the …The die-off happened towards the end of the Ediacaran period, which lasted from 635 to 541 million years ago. The earliest known complex animals lived at this time, including many soft-bodied ...List of Ediacaran genera. This is a list of all described Ediacaran genera, including the Ediacaran biota. It contains 227 genera. Bilaterally symmetric organism with ovoid shape, and midline axial zone. Junior synonym of Onegia nenoxa (according to …The Ediacaran Period marks a global major transition to a more productive biosphere, accompanied by turbulent changes of marine redox environment and the diversification of complex multicellular eukaryotes (Xiao et al., 2014, Shields et al., 2019, Laakso et al., 2020, Li et al., 2020).Chert nodules in the Ediacaran Doushantuo …Near the end of the Ediacaran, life started to ramp up its pace. In Russia, a slab of microbial mat was found covered in patches, grazed on by a creature capable of movement. The culprit was a disc-shaped animal named Yorgia. Growing up to 25cm (10in) wide, this creature was no bigger than a dinner plate.Ernietta plateauensis Pflug, 1966 is the type species of the Erniettomorpha, an extinct clade of Ediacaran life. It was likely a gregarious, partially infaunal organism. Despite its ecological and taxonomic significance, there has not been an in-depth systematic description in the literature since the original description fell out of use. A newly …22 Nov 2021 ... Ernietta from the late Edicaran Nama Group, Namibia. Journal of Paleontology, 90, 1017–1026. 10.1017/jpa.2016.94. Web of Science®Google ...Ediacaran Period, at the stratigraphic level originally proposed by Cloud and Glaessner. This proposal was approved by the International Commission on Strati-graphy and ratified by the International Union of Geological Sciences in late March 2004. The new Ediacaran Period reflects the Subcommis-sion’s identification of an initial GSSP that can beIn the Cryogenian and Edicaran, the continental rifting accompanied by accumulation of diamictites and volcanic activity led to further fragmentation of ...Edicaran biota—which so far have been found on five continents—represent “an important development in the evolution of life on Earth, because they immediately predate the explosion of life ...Nov 27, 2022 · The Ediacaran biota were soft-bodied organisms, many with enigmatic phylogenetic placement and ecology, living in marine environments between 574 and 539 million years ago. Some studies ... Ediacaran–Cambrian fossil quantities exhibit a comparable trajectory and have strong (r s > 0.8) positive correlations with marine sedimentary area and volume flux at multiple temporal resolutions. Even so, Ediacaran fossil quantities are dramatically reduced in comparison to the Cambrian when normalized by the quantity of preserved marine rock.INTRODUCTION. The Ediacaran Period [635 to 539 million years (Ma) ago] is a pivotal period in Earth history, archiving the rise of complex macroscopic life ().This evolutionary milestone occurred in the aftermath of extreme climate perturbations, the Cryogenian snowball Earth events (), and amid several perturbations to the carbon …13 Aug 2017 ... Building dioramas of past life from Edicaran through Pleistocene for educational dioramas. Can anyone suggest resources for SCALED ...The Ediacaran to Cambrian transition witnessed great biological and environmental turnovers from the Precambrian to Phanerozoic. These changes are also reflected by the fossil records during that time. However, the fossil distribution was highly heterogenous. While diverse fossils were constantly found from the shallow shelf …Towards a glacial subdivision of the Ediacaran Period, with an example of the Boston Bay Group, Massachusetts. Abstract After the Elatina glaciation of Snowball Earth, at least four distinct glacial advances and sea-level retreats punctuated Ediacaran time: Gaskiers glaciation (580 Ma), Fauquier glaciation….Owing to the lack of temporally well-constrained Ediacaran fossil localities containing overlapping biotic assemblages, it has remained uncertain if the latest Ediacaran (ca 550–541 Ma) assemblages reflect systematic biological turnover or environmental, taphonomic or biogeographic biases.Here, we report new latest Ediacaran fossil …13 Oct 2016 ... The giant Edicaran fossils found at Mistaken Point ...The Ediacaran period was the precursor to the Cambrian (about 541 Ma to 485.4 Ma) when the earth witnessed an explosion of life forms, and much of which …Introduction. The Ediacaran–Cambrian (E–C) transition arguably marks the most important geobiological revolution of the past billion years, characterized by large perturbations to global geochemical cycles, a permanent step-change in the character of the sedimentary record, the rise of macroscopic eukaryotic life, and potentially one or more pulses of mass extinction. An algal fossil from the Miaohe biota, Dengying Fm., South China, preserved as a carbonaceous compression. The Yangtze Gorges Region is located in western Hubei Province, China, on the banks of the Yangtze River. The region encompasses several important localities where the Ediacaran (Sinian) successions of the Doushantuo and …The Ediacaran–Cambrian (E–C) transition marks the most important geobiological revolution of the past billion years, including the Earth’s first crisis of macroscopic eukaryotic life, and its most spectacular evolutionary diversification. Here, we describe competing models for late Ediacaran extinction, summarize evidence for these …The Ediacaran Period is a pivotal period in Earth history, archiving the rise of complex macroscopic life. This evolutionary milestone occurred in the aftermath of extreme climate perturbations, the Cryogenian snowball Earth events, and amid dramatic changes in the global carbon cycle and ocean redox conditions.7 Sept 2015 ... ... Edicaran ecosystems suffered abrupt extinction at the Ediacaran–Cambrian boundary. The fossil-bearing horizons at Farm Swartpunt are part of ...Palaeopaschichnus, a soft-bodied fossil restricted to Ediacaran strata worldwide 39, occurs in subtidal strata 0.2 m below the top of the Ediacaran at the GSSP 5, but despite intensive search no ...The Neoproterozoic Era is the unit of geologic time from 1 billion to 538.8 million years ago. [2] It is the last era of the Precambrian Supereon and the Proterozoic Eon; it is subdivided into the Tonian, Cryogenian, and Ediacaran periods. It is preceded by the Mesoproterozoic Era and succeeded by the Paleozoic Era of the Phanerozoic Eon. Feb 11, 2019 · The Ediacaran macrobiota — an assortment of macroscopic, largely soft-bodied organisms that lived during the ~30 Myr interval prior to the Cambrian period — have long been considered a ... Ernietta plateauensis Pflug, 1966 is the type species of the Erniettomorpha, an extinct clade of Ediacaran life. It was likely a gregarious, partially infaunal organism. Despite its ecological and taxonomic significance, there has not been an in-depth systematic description in the literature since the original description fell out of use. A newly …Hapsidophyllas flexibilis new genus and species and Frondophyllas grandis new genus and species are rare Ediacaran (ca. 565 Ma) rangeomorph forms, herein termed “hapsidophyllids,” which are endemic to Mistaken Point, Newfoundland, Canada. These two taxa are highly disparate in overall morphology, the former being a low-level, …The Ediacaran period is not yet formally subdivided, but a proposed scheme recognises an Upper Ediacaran whose base corresponds with the Gaskiers glaciation, a Terminal Ediacaran Stage starting around 550 million years ago, a preceding stage beginning around 557 Ma with the earliest widespread Ediacaran biota fossils; two …The Ediacaran contains evidence for a number of important evolutionary milestones, including fossils thought to represent evidence of the first animal movement, biomineralization (the formation of hard shells or spicules), predation and reefs. Perhaps the most infamous Ediacaran fossils, however, are those of the Ediacaran biota. Therefore, this study exhibits that the sedimentary characteristics and evolutionary laws of the Ediacaran glaciation are helpful in determining the extent and type of the Ediacaran glaciation. The frequency of global Ediacaran glaciations is roughly grouped into ∼580 Ma and ∼ 565-550 Ma, this diachronous feature may indicate an …
Near the end of the Ediacaran, life started to ramp up its pace. In Russia, a slab of microbial mat was found covered in patches, grazed on by a creature capable of movement. The culprit was a disc-shaped animal named Yorgia. Growing up to 25cm (10in) wide, this creature was no bigger than a dinner plate. . Beau allen
Charnia is an extinct genus of frond -like lifeforms belonging to the Ediacaran biota with segmented, leaf-like ridges branching alternately to the right and left from a zig-zag medial suture (thus exhibiting glide reflection, or opposite isometry). The genus Charnia was named for Charnwood Forest in Leicestershire, England, where the first ... The Ediacaran succession overlying the Jiangnan Orogen is mostly composed of carbonate and is unsuitable for detrital zircon and whole rock geochemical analysis. 4. Analytical methods4.1. LA-ICMPS U-Pb dating of detrital zircons. Zircons were separated by conventional heavy liquid and magnetic techniques. Grains were selected …May 23, 2022 · Earth’s earliest fossils of complex macroscopic life are recorded in Ediacaran-aged siliciclastic deposits as exceptionally well-preserved three-dimensional casts and molds, known as “Ediacara ... The Ediacaran Fauna (600-542 MY) The Ediacaran Fauna refers to an assemblage or group of fossil animals and plants that are dominantly soft-bodied and have been found in rocks from the late Precambrian Eon. Some of the animals in the Ediacaran Fauna may have had some body parts made of chitin, but organisms had not yet evolved to have full ...However, the timing of Ediacaran glaciation remains controversial because of poor age constraints on the ∼30 Ediacaran glacial deposits known worldwide. In addition, paleomagnetic constraints and a lack of convincing Snowball-like cap carbonates indicate that Ediacaran glaciations likely did not occur at low latitudes.The Ediacaran–Cambrian transition signals a drastic change in both diversity and ecosystem construction. The Ediacara biota (consisting of various metazoan stem lineages in addition to extinct ...The Ediacaran is a geological period that spans ~ 96 million years from the end of the Cryogenian at ~ 635 Ma to the onset of the Cambrian at ~ 539 Ma. According to Knoll et al. ( 2006) the Ediacaran Period constitutes a distinctive interval of time bounded by the decay of the great Marinoan ice sheets and the beginning of the Cambrian ...Undisputed Ediacaran animals trace and body fossils are small (< 5mm diameter) and vermiform with chitin or calcite skeletons, and have been characterized as Ediacaran Wormworld (8). In contrast, Dickinsonia and Andiva are part of a diverse group of large (up to 1.4 m) and unskeletonized, crustose to foliose, quilted organisms, from very ...Ediacaran biota is a heterogeneous assemblage representing the earliest known communities of macroscopic organisms. Diverse Ediacaran fossil assemblages are coeval with the earliest phosphatized metazoan embryos (Xiao et al., 1998; but see Bailey et al., 2007; Xiao et al., 2007), the earliest undisputed traces of metazoan activities (Jensen, 2003), and the time of eumetazoan crown-group ... The Ediacaran DST was deposited in this passive continental margin. According to the paleo-geographic reconstructions based on various strata outcrops widely distributing in South China, the paleo-environments of DST include inner shelf, lagoon, outer shelf, slope and oceanic basin (Muscente et al., 2015, Li et al., 2016). The DST consists ...Edicaran organisms include diploblasts like sponges, jellyfish, and comb jellies. Edicaran organisms occurred just before the Cambrian explosion. Edicaran ...The Ediacaran Shuram excursion (c. 570 – c. 551 Ma) records a significant C cycle perturbation in Earth history with unusually light carbonate carbon isotope values (δ 13 C carb) down to −12 ...Ediacaran – Early Cambrian poles and VGPs from Southern India compared to paleomagnetic data of the same time interval from other Gondwana blocks (see Table …An integrative study of the global Ediacaran–Cambrian successions revealed a significant diachroneity for the unconformity in the Ediacaran–Cambrian boundary and suggested that overprinted on global eustasy, the impact of local tectonics, which was magnified by large-scale paleogeographic changes and plate …History of Life in the Phanerozoic Eon (Part 1) Edicaran (635 MYA-541 MYA) Cambrian (541 MYA-485.4 MYA) Ordovician (485 MYA-443 MYA) Silurian (443 MYA-416 ....