scholarly journals The post‐embryonic ontogeny of the early Cambrian trilobite Estaingia bilobata from South Australia: trunk development and phylogenetic implications

2020 ◽  
Author(s):  
James D. Holmes ◽  
John R. Paterson ◽  
Diego C. García‐Bellido
Keyword(s):  
South Australia ◽  
Early Cambrian ◽  
Phylogenetic Implications ◽  
Cambrian Trilobite

scholarly journals Early Cambrian chronostratigraphy and geochronology of South Australia

2018 ◽  
Vol 185 ◽  
pp. 498-543 ◽  
Author(s):  
Marissa J. Betts ◽  
John R. Paterson ◽  
Sarah M. Jacquet ◽  
Anita S. Andrew ◽  
Philip A. Hall ◽  
...  
Keyword(s):  
South Australia ◽  
Early Cambrian

scholarly journals A new early Cambrian bradoriid (Arthropoda) assemblage from the northern Flinders Ranges, South Australia

2014 ◽  
Vol 25 (1) ◽  
pp. 420-437 ◽  
Author(s):  
Marissa J. Betts ◽  
Timothy P. Topper ◽  
James L. Valentine ◽  
Christian B. Skovsted ◽  
John R. Paterson ◽  
...  
Keyword(s):  
South Australia ◽  
Early Cambrian ◽  
Flinders Ranges

Occurrence of the siliceous sponge spicule Konyrium (Hexactinellida) in the upper Cambrian of the Mackenzie Mountains, northwestern Canada

2002 ◽  
Vol 76 (3) ◽  
pp. 565-569 ◽  
Author(s):  
Brian R. Pratt
Keyword(s):  
Fossil Record ◽  
Southern China ◽  
South Australia ◽  
Early Cambrian ◽  
Siliceous Sponge ◽  
Sponge Spicule ◽  
Animal Phyla ◽  
Sponge Diversity ◽  
Siliceous Sponges ◽  
Late Neoproterozoic

The fossil record of siliceous sponges—Hexactinellida and demosponge “Lithistida”—hinges upon both body fossils plus isolated spicules mostly recovered from limestones by acid digestion. The earliest record of siliceous sponge spicules extends back to the late Neoproterozoic of Hubei, southern China (Steiner et al., 1993) and Mongolia (Brasier et al., 1997), and body fossils attributed to the hexactinellids have been described from the Ediacaran of South Australia (Gehling and Rigby, 1996); thus they are the oldest-known definite representatives of extant animal phyla. The Early Cambrian saw a remarkable diversification in spicule morphology, with the appearance of an essentially “modern” array of forms (Zhang and Pratt, 1994). While a diversity decline may have occurred with the late Early Cambrian extinction(s), the subsequent Paleozoic and Mesozoic fossil record of spicules shows a relatively consistent range of morphologies (e.g., Mostler, 1986; Bengtson et al., 1990; Webby and Trotter, 1993; Kozur et al., 1996; Zhang and Pratt, 2000). However, because spicule form is not restricted to individual taxa and many sponge species secrete a variety of spicule shapes, it is difficult to gauge true siliceous sponge diversity and to explore their biostratigraphic utility using only isolated spicules.

New Artiopodan Arthropods from the Early Cambrian Emu Bay Shale Konservat-Lagerstätte of South Australia (project)

10.7934/p709 ◽  
2014 ◽  
Author(s):  
R Paterson ◽  
C García-Bellido ◽  
D Edgecombe
Keyword(s):  
South Australia ◽  
Early Cambrian

Lower Cambrian acritarchs from northern Spain: the Precambrian-Cambrian boundary and biostratigraphic implications

1992 ◽  
Vol 129 (4) ◽  
pp. 421-436 ◽  
Author(s):  
Teodoro Palacios ◽  
Gonzalo Vidal
Keyword(s):  
Lower Cambrian ◽  
East European Platform ◽  
Early Cambrian ◽  
Eastern Siberia ◽  
Western North America ◽  
Northern Spain ◽  
East European ◽  
Cantabrian Region ◽  
Biostratigraphic Correlation ◽  
Cambrian Trilobite

AbstractAcritarchs are reported from basal Cambrian rock units inthe Cantabrian region of northern Spain that are known to contain archaeocyathan and trilobite faunas. Biostratigraphic correlation of the Iberian sequences with other regions has been hampered by the strong provincialism of these faunas. However, this report of evidently cosmopolitan acritarch taxaestablishes the time equivalence of early Cambrian trilobite faunas from Iberia, Baltoscandia and the East European Platform (EEP). Our data suggest that the detrital deposition of the Lower Cambrian Herreria Formation embraces at least three (and possibly four) Lower Cambrian acritarch zones previously identified in the EEP, eastern Siberia, Baltoscandia, Scotland, Greenland, Svalbard and western North America. The early Cambrian transgression in northern Spain was probably initiated in Talsy times (Schmidtiellus mickwitzi trilobite Zone in Baltoscandia and the EEP), in part corresponding to the Dokidocyathus regularis archaeocyathian Zone of the Middle Tommotian in Siberia.

Oikozetetesfrom the early Cambrian of South Australia: implications for halkieriid affinities and functional morphology

Lethaia ◽  
2009 ◽  
Vol 42 (2) ◽  
pp. 199-203 ◽  
Author(s):  
JOHN R. PATERSON ◽  
GLENN A. BROCK ◽  
CHRISTIAN B. SKOVSTED
Keyword(s):  
Functional Morphology ◽  
South Australia ◽  
Early Cambrian

scholarly journals Global correlation of the early Cambrian of South Australia: Shelly fauna of the Dailyatia odyssei Zone

2017 ◽  
Vol 46 ◽  
pp. 240-279 ◽  
Author(s):  
Marissa J. Betts ◽  
John R. Paterson ◽  
James B. Jago ◽  
Sarah M. Jacquet ◽  
Christian B. Skovsted ◽  
...  
Keyword(s):  
South Australia ◽  
Early Cambrian ◽  
Global Correlation

Early Cambrian bioconstructions in the Zavkhan Basin of western Mongolia

1996 ◽  
Vol 133 (4) ◽  
pp. 429-444 ◽  
Author(s):  
Peter D. Kruse ◽  
Anna Gandin ◽  
Françoise Debrenne ◽  
Rachel Wood
Keyword(s):  
South Australia ◽  
Early Cambrian ◽  
Patch Reefs ◽  
Western Mongolia ◽  
Tectonically Active

AbstractThe Neoproterozoic–Cambrian succession in the Zavkhan Basin of western Mongolia preserves early Cambrian bioconstructions of Nemakit-Daldynian to Botomian age. As elsewhere (Siberia, Morocco), the Nemakit-Daldynian bioconstructions in the upper Tsagaan Oloom Formation to lower Bayan Gol Formation interval were purely calcimicrobial. Spectacular calcimicrobial ‘patch reefs’ of presumed Tommotian age are present in the lower Bayan Gol Formation. In contrast, late Atdabanian–early Botomian bioconstructions are varied and well developed in the upper Salaany Gol Formation including, in addition to calcimicrobial bioherms, Gordonophyton–Razumovskia crusts, radiocyathan—archaeocyathan bioherms and thickets of the ramose archaeocyath Cambrocyathellus.These latter Zavkhan Basin buildups show some ecological and sedimentological features in common with coeval bioconstructions in South Australia, which also developed under a tectonically active regime.

When the worm turned: Concordance of Early Cambrian ichnofabric and trace-fossil record in siliciclastic rocks of South Australia

Geology ◽  
1999 ◽  
Vol 27 (7) ◽  
pp. 625 ◽  
Author(s):  
Mary L. Droser ◽  
James G. Gehling ◽  
Sören Jensen
Keyword(s):  
Fossil Record ◽  
South Australia ◽  
Trace Fossil ◽  
Early Cambrian ◽  
Siliciclastic Rocks
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