Meduses et traces fossiles supposees precambriennes dans la formation de San Vito, Sarrabus, Sud-Est de la Sardaigne

Debrenne, Françoise; Naud, Gérard

doi:10.2113/gssgfbull.s7-xxiii.1.23

Cited by 11 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A large diversity of Ediacaran organisms and forms resembling them are known from 32 countries including some other parts of Australia (Walter et al, 1989;Cruse and Harris, 1994), the Nama Group of Namibia (Crimes and Germs, 1982;Narbonne et al, 1997), the Charnian Supergorup of England (Boynton and Ford, 1979), the Dividal Group of Norway (Føyn and Glaessner, 1979), the San Vito Series of Sardina (Debrenne and Naud, 1981), South Wales (Cope, 1983), Finnmark (Farmer et al, 1991), Podolia (Fedonkin, 1983a,b;Velikanov and Gureev, 1983), Siberia (Sokolov, 1976), Olenek Uplift (Sokolov and Fedonkin, 1984;Fedonkin, 1990), Middle Urals (Becker, 1990), China (Chen, 1991), Avalon Peninsula of Newfoundland (Anderson and Conway Morris, 1982), NW Canada and British Columbia (Narbonne and Hofmann, 1987;Hofmann et al, 1991;Narbonne and Aitken, 1990), North Carolina (Gibson et al, 1984), Southern Nevada (Horodyski, 1991) and India (De, 2003). Factors promoting soft-body preservation of the Vendian biota are higher benthic population density in active hydrodynamic zones of shallow water epiplatform seas or platform edges with coarse lamellar terrigenous substrates, higher percentage of attached forms, low activity level of scavengers and vagile predators, little processing of sediments by deposit feeders, stabilization of sediment by algal and cyanobacterial mats, quick burial of organisms following storm events and early rapid diagenesis (Lipps and Signor, 1992).…”

Section: Introductionmentioning

confidence: 99%

Ediacara fossil assemblage in the upper Vindhyans of Central India and its significance

2006

Journal of Asian Earth Sciences

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Ediacara fossil assemblage in the upper Vindhyans of Central India and its significance

2006

Journal of Asian Earth Sciences

View full text Add to dashboard Cite

“…has been much debated. From ichnofossils, Testa (1918) attributed this formation to the Cambrian based on the occurrence of Palaeophycus plumosus (i.e., Phycodes circinatum), followed by Debrenne and Naud (1981) who described the endemic medusoid Ichnusa cocozzai and a diversified ichnotaxa association of possible latest Precambrian/Early Cambrian age. However, the geographically sparse occurrence of acritarchs suggests a ?Miaolingian (pars) and Furongian age for the Arenarie di San Vito Fm., up to the Tremadocian and Floian for equivalent deposits from distinct tectonic units, e.g., the Solanas Fm.…”

Section: The Sarrabus Unit (Nappe Zone Se Sardinia)mentioning

confidence: 99%

Lower Ordovician Trilobites from SE Sardinia (Italy): A new record of the “Taihungshania bioprovince”

Pillola

Vidal

2023

Geobios

View full text Add to dashboard Cite

“…A small locality was also discovered in South Wales (Cope, 1977(Cope, , 1983. Imprints of medusoids were described from the lower part of the Dividal Group in Norway (Kulling, 1972;F,ayn and Glaessner, 1979) and from the San Vito Series of Sardinia (Debrenne and Naud, 1981). A medusoid assemblage has been discovered recently in the Late Proterozoic of northeastern Finnmark (Farmer et a1., 1991).…”

mentioning

confidence: 99%

Origin and Early Evolution of the Metazoa

Lipps¹,

Signor²

1992

Topics in Geobiology

View full text Add to dashboard Cite

PrefaceSeveral years ago, we realized that the most prominent ideas that had been expressed about the origin and early evolution of the Metazoa seemed to have been developed chiefly by zoologists using evidence from modern species without reference to the fossil record. Paleontologists had, in fact, put forth their own ideas about the problem, but the zoological and the paleontological evidence were seldom considered together, especially by zoologists. We believed that the paleontological documentation of the first Metazoa was too scattered, too obscure to Western readers, and much of it too recent to have been readily available to our colleagues in zoology. Whether or not that was entirely true, we thought that a single volume reviewing the fossil record of the earliest Metazoa would be useful to many in both paleontology and zoology, especially since so much new information has been developed in the last few years. Some of this information has been summarized in general articles recently, but an overview of most of the field does not exist.We therefore organized this book in five parts so that the evidence could be placed in perspective and summarized and inferences made from it. Part I introduces the previous hypotheses that have been proposed for the origin and early radiation of Metazoa. Part II consists of two summary chapters that set the sedimentological, geochemical, and biological background to the known radiations of Metazoa. Part III deals with the earliest known Metazoa, those of the Vendian Period, ranging in age from about 550 to 580 million years or so. These faunas are represented chiefly by soft-bodied or trace fossils. Part IV considers the early evolution of Metazoa from a geographical and systematic perspective. Three chapters summarize the occurrence of Early Cambrian fossils in three critical, welldocumented areas of the world. Each of these areas is so important in a worldwide context that each was considered to be the area where the stratotype of the Precambrian-Cambrian boundary might be established. Of course, other areas exist where Precambrian to Early Cambrian fossils occur, and these three chapters make reference to the other critical regions as well. Four chapters are chiefly systematic, dealing with four of the major phyla that radiated in the Early Cambrian. Part V examines general hypotheses about the origin and radiation of Metazoa based on the fossil record. The origin of skeletons is a most critical issue in deciphering the early radiation of Metazoa because skeletons are more easily preserved in the geological record, they appear to have been acquired in many disparate groups at about the same time, and they may have conferred an evolutionary advantage that promoted the radiation itself.Not all the chapters in this book present new information-in each case, they are summaries of a considerable body of detailed and dispersed knowledge. Some chapters include new information, and all provide new interpretations. So much information is available, in fact, that many other chapter...

show abstract

Meduses et traces fossiles supposees precambriennes dans la formation de San Vito, Sarrabus, Sud-Est de la Sardaigne

Cited by 11 publications

References 0 publications

Ediacara fossil assemblage in the upper Vindhyans of Central India and its significance

Ediacara fossil assemblage in the upper Vindhyans of Central India and its significance

Lower Ordovician Trilobites from SE Sardinia (Italy): A new record of the “Taihungshania bioprovince”

Origin and Early Evolution of the Metazoa

Contact Info

Product

Resources

About