Growth, decay and burial compaction of Dickinsonia, an iconic Ediacaran fossil

  title={Growth, decay and burial compaction of Dickinsonia, an iconic Ediacaran fossil},
  author={Gregory J. Retallack},
  journal={Alcheringa: An Australasian Journal of Palaeontology},
  pages={215 - 240}
  • G. Retallack
  • Published 1 September 2007
  • Environmental Science
  • Alcheringa: An Australasian Journal of Palaeontology
Retallack, G.J., September, 2007. Growth, decay and burial compaction of Dickinsonia, an iconic Ediacaran fossil. Alcheringa 31, 215-240. ISSN 0311-5518. Dickinsonia is a Neoproterozoic, Ediacaran fossil, variously considered a polychaete, turbellarian or annelid worm, jellyfish, polyp, xenophyophoran protist, lichen or mushroom. Its preservation as unskeletonized impressions in quartz sandstones has been attributed to a Neoproterozoic regime of aerobic decay less effective than today… 

Effaced preservation in the Ediacara biota and its implications for the early macrofossil record

Abstract:  Ediacaran structures known as ‘pizza discs’ or Ivesheadia have long been considered enigmatic. They are amongst the oldest known members of the Ediacara biota, apparently restricted to the

Ediacaran life on land

It is shown that the uppermost surfaces of the palaeosols have a variety of fossils in growth position, including Charniodiscus, Dickinsonia, Hallidaya, Parvancorina, Phyllozoon, Praecambridium, Rugoconites, Tribrachidium and ‘old-elephant skin’ (ichnogenus Rivularites).

Reassessment of the Silurian problematicum Rutgersella as another post-Ediacaran vendobiont

Retallack, G.J., 1.7.2015. Reassessment of the Silurian problematicum Rutgersella as another post-Ediacaran vendobiont. Alcheringa 39, 573–588. ISSN 0311-5518 Rutgersella is a problematic fossil from

Problematic Mesoproterozoic fossil Horodyskia from Glacier National Park, Montana, USA

Damaged Dickinsonia specimens provide clues to Ediacaran vendobiont biology

Recently reported specimens of the enigmatic Ediacaran fossil Dickinsonia from Russia show damage and repair that provides evidence of how they grew, and of their biological affinities, which are compatible with evidence of terrestrial habitat from associated frigid and gypsic paleosols.

Ediacaran fossils in thin-section

Retallack, G.J., June 2016. Ediacaran fossils in thin-section. Alcheringa 40, xx–xx. ISSN 0311-5518 Megafossils from the Ediacaran Period (635–541 Ma) have been controversial in part because many are

A Solution to Darwin's Dilemma: Differential Taphonomy of Ediacaran and Palaeozoic Non-Mineralised Discoidal Fossils

The eldonides, a group of non-mineralised asymmetrical discoidal fossils characterised by a coiled alimentary canal with circumoral tentacles and radially arranged internal lobes, are perhaps the

Enigmatic Ediacaran megascopic bedding plane structures on the Sonia Sandstone, Jodhpur Group, Marwar Supergroup, India: seaweed or problematica?

The present study discusses the origin and affinity of enigmatic Ediacaran bedding plane structures reported earlier from the Sonia Sandstone of the Marwar Supergroup (Ediacaran to Lower Cambrian).



Were the Ediacaran fossils lichens?

  • G. Retallack
  • Environmental Science, Geography
  • 1994
Ediacaran fossils are taphonomically similar to impressions of fossil plants common in quartz sandstones, and the relief of the fossils suggests that they were as resistant to compaction during

Evidence of organic structures in Ediacara-type fossils and associated microbial mats

Ediacara-type fossils represent a group of soft-bodied organisms, mainly known from imprints in Proterozoic coarse-grained siliciclastic sedimentary rocks. Circular compressions of Beltanelliformis

Symbiosis, competition, and physical disturbance in the growth histories of Pliocene cheilostome bryoliths

Free-living (unattached) subspherical bryozoan masses (bryoliths) in Pliocene tidal channel deposits of the Imperial Formation of southeastern California show complex intra- and interspecific

Eumetazoan fossils in terminal proterozoic phosphorites?

  • S. XiaoX. YuanA. Knoll
  • Geography, Environmental Science
    Proceedings of the National Academy of Sciences of the United States of America
  • 2000
Evidence for Doushantuo eumetazoans is provided by millimeter-scale tubes that display tabulation and apical budding characteristic of some Cnidaria, especially the extinct tabulates.

Cnidarian taphonomy and affinities of the Ediacara biota

  • R. Norris
  • Geography, Environmental Science
  • 1989
Plaster impressions and sand casts of extant medusae, a chondrophoran, and a pennatulid share basic structural characteristics with fossils in the Upper Proterozoic Ediacara assemblage. Impressions

A Fungal Analog for Newfoundland Ediacaran Fossils?1

It is proposed that some of the more conspicuous Ediacaran fossils from the Avalon Peninsula of Newfoundland, including Aspidella, Charnia, and Charniodiscus, were biologically similar to members of the Kingdom Fungi, yet reflect characteristics of modern fungal mycelia.

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

The Ediacara member of the Rawnsley quartzite: The context of the Ediacara assemblage (late precambrian, flinders ranges)

Abstract The Ediacara fossil assemblage occurs widely in the Flinders Ranges, South Australia, in a single, readily mappable stratigraphic interval—the Ediacara Member of the Rawnsley Quartzite,

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