Long expected sponges from the Neoproterozoic Ediacara fauna of South Australia

  title={Long expected sponges from the Neoproterozoic Ediacara fauna of South Australia},
  author={James G. Gehling and J. Keith Rigby},
  journal={Journal of Paleontology},
  pages={185 - 195}
  • J. Gehling, J. Rigby
  • Published 1 March 1996
  • Environmental Science, Geography
  • Journal of Paleontology
New fossils from the Neoproterozoic Ediacara fauna of South Australia are interpreted as the oldest known hexactinellid sponges. They occur within the Ediacara Member of the Rawnsley Quartzite (Pound Subgroup) from several locations in the Flinders Ranges. The new genus, Palaeophragmodictya, is characterized by disc-shaped impressions preserving characteristic spicular networks and is reconstructed as a convex sponge with a peripheral frill and an oscular disc at the apex. 

Hexactinellid Sponge Spicules in Neoproterozoic Dolostone from South China

Abstract. Sponge spicules were extracted from dolostone in the lower part of the Neoproterozoic Doushantuo Formation in the Yangtze Gorges area (South China), which has an age of ∼630 million

A new metazoan from the Vendian of the White Sea, Russia, with possible affinities to the ascidians

Two specimens recovered from late Neoproterozoic shallow marine sediments of northern Russia may be the oldest known ascidians. Dated at around 555 Ma, these, together with the younger Ausia from the

Palaeophragmodictya spinosa sp. nov., a bilateral benthic organism from the Vendian of the Southeastern White Sea Region

Bilateral symmetry discovered in the ontogeny of Palaeophragmodictya spinosa sp.

Phragmodictya jinshaensis sp. nov., a hexactinellid dictyosponge from the Cambrian of Jinsha, south China

A new fossil species from Cambrian strata of Jinsha, south China, is interpreted as the earliest known hexactinellid dictyosponge. Phragmodictya jinshaensis sp. nov. occurs within the Niutitang

Spindle-shaped Ediacara fossils from the Mistaken Point assemblage, Avalon Zone, Newfoundland

The Mistaken Point assemblage of the Ediacara fossils is dominated by rangeomorphs with homologous fractal branching elements. The most distinctive are the fusiform fossils, herein named Fractofusus

Chapter 19 – The Cambrian Period

Trace fossils accompanying possible "Ediacaran organisms" in the Middle Cambrian sediments of the St. Petersburg Region, Russia

Shallow-marine Middle Cambrian sandy sediments of the St. Petersburg Region (i.e., sedimentary cover of the Baltic Shield) bear non-shelly, cup-like fossils, interpreted tentatively as descendants of

Lower Cambrian Vendobionts from China and Early Diploblast Evolution

A frondlike fossil, Stromatoveris, is described from the Lower Cambrian Chengjiang Lagerstätte (Yunnan, China) that is strikingly similar to Ediacaran vendobionts and has important implications for the early evolution of this phylum and related diploblasts, some of which independently evolved a frondose habit.



A cnidarian of actinian-grade from the Ediacaran Pound Subgroup, South Australia

Inaria karli gen. et sp. nov., a moderate sized lobate fossil from the Late Precambrian Ediacara assemblage, occurs in a number of modes of preservation involving composite moulding of a compressed,

Earliest known echinoderm — a new Ediacaran fossil from the Pound Subgroup of South Australia

Arkarua adami gen. et sp. nov., a small disc-like animal with a pentameral arrangement of grooves on its oral surface, is preserved as an external mould on the base of sandstone beds within the

New and extraordinary Early Cambrian sponge spicule assemblage from China

The fossil record of siliceous sponges, compared with that of other skeleton- secreting Metazoa, is poorly known, based as it is on disarticulated spicules and sporadically preserved body fossils.

Late Precambrian and Early Cambrian Metazoa: Preservational or Real Extinctions?

The interpretation of Ediacara-type body fossils in terms of modern soft-bodied metazoans must be questioned. Their morphology rather suggests foliate, non-locomotory quasi-autotrophs. Their mode of

A new conocoryphid trilobite from the Lower Cambrian of the Flinders Ranges, South Australia

A new species of conocoryphid trilobite, Atops rupertensis, is described from the upper part of the Lower Cambrian Hawker Group of the Flinders Ranges, South Australia and a new generic diagnosis is given.


With only two exceptions, this soft-bodied fauna can be grouped naturally into two categories, ‘non-resistant’ and ‘resistant’. Non-resistant animals (mostly medusoids) collapsed or decayed before

Vendozoa: Organismic construction in the Proterozoic biosphere

Seilacher, Adolf 1989 07 15: Vendozoa: Organismic construction in the Proterozoic biosphere. Lethaia, Vol. 22. pp. 229–239. Oslo. ISSN 0024–1164. Ediacara-type impressions of large, but flat and

Precambrian trace fossils and the rise of bilaterian animals

In this attempt to synthesize present knowledge into a coherent story, the Cambrian explosion is interpreted to represent a true adaptive radiation, an event similar to Phanerozoic radiation events

Precambrian Coelenterata from Australia, Africa and England

EXTENSIVE collecting has been carried out during the past two years by private collectors, the South Australian Museum, the University of Adelaide and Mr. R. C. Sprigg and associates, in flaggy

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