Underground Vendobionta From Namibia

  title={Underground Vendobionta From Namibia},
  author={Dmitriy V. Grazhdankin and Adolf Seilacher},
The late Precambrian fossils from Namibia have generally been regarded as soft‐bodied organisms whose three‐dimensional preservation resulted from smothering in fluidized sand. The sedimentological context of Pteridinium and Namalia within a sandstone bed, however, allows us to distinguish between two taphocoenoses: (1) winnowed, laterally collapsed, current‐transported specimens accumulated as a lag deposit of turbidite‐like flows, and (2) specimens ‘floating’ in the top part of an event bed… 

Sedimentology and Palaeoecology of Ernietta-Bearing Ediacaran Deposits in Southern Namibia: Implications for Infaunal Vendobiont Communities

The Ediacaran was a period of wide soft-bodied biota development in marine siliciclastic environment. The reconstruction of palaeoecology, lifestyle and environment settings of these organisms are

Elucidating Ernietta: new insights from exceptional specimens in the Ediacaran of Namibia

Exceptionally preserved specimens of Ernietta in a shallow-marine gutter cast from southern Namibia reveal that all previously figured specimens of this iconic Ediacaran megafossil are incomplete,

Assemblage palaeoecology of the Ediacara biota: The unabridged edition?

Ernietta from the late Edicaran Nama Group, Namibia

Abstract. 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

Problematic megafossils in Cambrian palaeosols of South Australia

Abstract:  Red calcareous Middle Cambrian palaeosols from the upper Moodlatana Formation in the eastern Flinders Ranges of South Australia formed in well‐drained subhumid floodplains and include a

A re-examination of the Nama-type Vendian organism Rangea schneiderhoehni

The need to re-examine Rangea has been motivated by two factors: first, by the recent progress in the understanding of three-dimensional mouldic preservation of Vendian fossils, and second, by

New Evidence on the Taphonomic Context of the Ediacaran Pteridinium

New material collected from the Kliphoek Member of the Nama Group (Kuibis Subgroup, Dabis Formation) on Farm Aar, southern Namibia, offers insights concerning the morphology of the Ediacaran organism

The nature of vendobionts

Abstract The notion that the majority of Ediacaran fossils do not represent stem groups to modern metazoan phyla is now increasingly accepted. Nevertheless, the further claim of the vendobiont

Internal structure of Cambrian vendobionts Arumberia, Hallidaya, and Noffkarkys preserved by clay in Montana, USA

  • G. Retallack
  • Geology, Environmental Science
    Journal of Palaeosciences
  • 2022
Quilted fossils known as vendobionts have remained enigmatic because preserved as unrevealing impressions in sandstone, for example, Arumberia banksi Glaessner & Walter, Noffkarkys storaasli

The Cambrian Fossil Record and the Origin of the Phyla1

  • G. Budd
  • Geography, Environmental Science
    Integrative and comparative biology
  • 2003
Recent changes in absolute dating of the Cambrian have refined the period of time that the fossil record might be of most help in revealing the dynamics of the undoubted radiation taking place at this time.



Biomat-related lifestyles in the Precambrian

The strange biota of Neoproterozoic sea bottoms become more understandable if we assume that otherwise soft sediments were sealed by firm and erosion-resistant biomats. This allowed "mat encrusters"


  • J. Dzik
  • Geography, Environmental Science
  • 1999
Unlike the celebrated Ediacara fossils, those from the roughly coeval localities of the Kuibis Quarzite of Namibia are preserved not as imprints on the sandstone bedding plane, but

Vendobionta and Psammocorallia: lost constructions of Precambrian evolution

  • A. Seilacher
  • Environmental Science
    Journal of the Geological Society
  • 1992
The non-availability of biomineralized skeletons and low levels of predation led Vendian evolution along strange avenues. The Ediacara-type Vendobionta appear to represent a kingdom, in which foliate

Biostratigraphic and Geochronologic Constraints on Early Animal Evolution

Two distinct evolutionary pulses, represented by the Vendian Ediacaran fauna and Cambrian small shelly faunas, are generally thought to characterize the emergence of macroscopic animals at the end of

The youngest Ediacaran fossils from southern Africa.

The discovery of fossils of the Ediacara biota near the top of the Spitzkopf Member at farm Swanpunt extends the known range of these remains in Namibia more than 600 m to near the sub-Cambrian unconformity and provides support for the concept of the "Vendobionta" as a late Neoproterozoic group of mainly multifoliate organisms with a distinctive quilted segmentation.

The enigmatic Ediacaran (late Precambrian) genus Rangea and related forms

Investigation of the preservation and structure of Rangea indicates that it was probably a colonial octocoral consisting of a large tapering primary polyp, or oozoid, and a number of leaf-shaped, conjoined fronds which bore the feeding polyps; it is suggested to belong to a group of early Ediacaran anthozoans which provide a fossil link between the still living Telestacea and Pennatulacea.

Functional and Ecological Aspects of Ediacaran Assemblages

Reference to fossil imprints of soft-bodied Ediacaran metazoans made by Hill and Bonney (1877, p. 757) recorded two of “those curious arrangements of concentric rings which have been supposed to be


The concept of the late Proterozoic Ediacara, fauna as one of soft-bodied, mainly pelagic, cnidarians which suffered a mass extinction at the Precambrian-Cambrian boundary is no longer tenable.There

Complex trace fossils from the terminal Proterozoic of Namibia

We document for the first time the occurrence of the complex trace fossil Treptichnus from the terminal Proterozoic Nama Group, Namibia. These traces differ in detail from the Cambrian index fossil

A reinterpretation of Rangea schneiderhoehni and the discovery of a related new fossil from the Nama Group, South West Africa

A careful study of the two Rangea specimens and a reexamination of the holotype shows that R. schneiderhoehni forma plana and R.schneiderhoi forma turgida are the same species as already suggested by Gurich, Richter, and Pflug, and the Ediacara ‘Rangea’ does not belong to the genus Rangea, and is introduced as the genus Glaessnerina.