The oldest skeletal macroscopic organism Palaeopascichnus linearis

  title={The oldest skeletal macroscopic organism Palaeopascichnus linearis},
  author={Anton V. Kolesnikov and Vladimir I. Rogov and Natalia Bykova and Taniel Danelian and S{\'e}bastien Clausen and A. V. Maslov and Dmitriy V. Grazhdankin},
  journal={Precambrian Research},
Palaeolatitudinal distribution of the Ediacaran macrobiota
Macrofossils of the late Ediacaran Period (c. 579–539 Ma) document diverse, complex multicellular eukaryotes, including early animals, prior to the Cambrian radiation of metazoan phyla. To
A quantitative and statistical discrimination of morphotaxa within the Ediacaran genus Palaeopascichnus
The palaeopascichnids are a relatively abundant component of the Ediacara biota. The eponymous Palaeopascichnus delicatus consists of serially arranged, millimetre‐scale allantoid chambers that have
Simple sediment rheology explains the Ediacara biota preservation
It is shown that Flinders-style fossilization of Ediacaran organisms was promoted by unusually prolonged conservation of organic matter, coupled with differences in rheological behaviour of the over- and underlying sediments, and that sedimentary flows constrained Ediacara biota preservation and that Ediacaren fossils do not necessarily reflect the external shape of the organism.
Ediacaran biozones identified with network analysis provide evidence for pulsed extinctions of early complex life
Rocks of Ediacaran age (~635–541 Ma) contain the oldest fossils of large, complex organisms and their behaviors. These fossils document developmental and ecological innovations, and suggest that
Organically-preserved multicellular eukaryote from the early Ediacaran Nyborg Formation, Arctic Norway
Unexpected organically-preserved fossils from mudrocks are described, that provide support for the presence of organisms with differentiated cells (potentially an epithelial layer) in the late Neoproterozoic.
Potencial de correlación estratigráfica de los paleopasciquínidos del Ediacárico
For more than forty years, palaeopascichnids represented an enigmatic group of macroscopic fossils, which are characterised by substantial differences in preservation leading to no consistent


Possible early foraminiferans in post-Sturtian (716−635 Ma) cap carbonates
Foraminifera are an ecologically important group of modern heterotrophic amoeboid eukaryotes whose naked and testate ancestors are thought to have evolved ∼1 Ga ago. However, the single-chambered
A new modular palaeopascichnid fossil Curviacus ediacaranus new genus and species from the Ediacaran Dengying Formation in the Yangtze Gorges area of South China
Abstract Non-biomineralizing Ediacaran macrofossils are rare in carbonate facies, but they offer valuable information about their three-dimensional internal anatomy and can broaden our view about
Testing the protozoan hypothesis for Ediacaran fossils: a developmental analysis of Palaeopascichnus
Developmental analysis of the Palaeopascichnus reveals unusual, protozoan features, including evidence for chaotic repair structures, for mergence of coeval forms, as well as complex bifurcations, which suggest that Palaeobiology is a body fossil of an unidentified protozoa but is unrepresentative of Ediacaran body construction, in general.
Ediacaran biota: The dawn of animal life in the shadow of giant protists
Abstract Functional, constructional, and preservational criteria led to a reinterpretation of seemingly complex trace fossils and the majority of assumed metazoan body fossils from Vendian
Patterns of Evolution of the Ediacaran Soft-Bodied Biota
Abstract When each of the Avalon-, Ediacara-, and Nama-type fossil assemblages are tracked through geological time, there appear to be changes in species composition and diversity, almost
The oldest evidence of bioturbation on Earth
Detailed study of the Khatyspyt Formation in arctic Siberia has shown that, contrary to common expectations, the earliest ichnofabric is of late Ediacaran age, records a food-seeking behavior, and is