Lower Cambrian helcionelloid macromolluscs from South Australia

2016 ◽  
Vol 36 ◽  
pp. 333-358 ◽  
Author(s):  
Sarah M. Jacquet ◽  
Glenn A. Brock
Keyword(s):  
Lower Cambrian ◽  
South Australia

PALEOENVIRONMENTAL AND TAPHONOMIC IMPLICATIONS FOR LOWER CAMBRIAN PHOSPHATIC HARDGROUNDS FROM SOUTH AUSTRALIA

2020 ◽  
Author(s):  
Sarah M. Jacquet ◽  
◽  
April A. Miller ◽  
Laura Speir ◽  
Tara Selly ◽  
...  
Keyword(s):  
Lower Cambrian ◽  
South Australia

The geological context of the Lower Cambrian (Series 2) Emu Bay Shale Lagerstätte and adjacent stratigraphic units, Kangaroo Island, South Australia

2011 ◽  
Vol 58 (3) ◽  
pp. 243-257 ◽  
Author(s):  
J. G. Gehling ◽  
J. B. Jago ◽  
J. R. Paterson ◽  
D. C. García-Bellido ◽  
G. D. Edgecombe
Keyword(s):  
Lower Cambrian ◽  
South Australia ◽  
Geological Context

scholarly journals Nektaspid arthropods from the Lower Cambrian Emu Bay Shale Lagerstätte, South Australia, with a reassessment of lamellipedian relationships

Palaeontology ◽  
2010 ◽  
Vol 53 (2) ◽  
pp. 377-402 ◽  
Author(s):  
JOHN R. PATERSON ◽  
GREGORY D. EDGECOMBE ◽  
DIEGO C. GARCÍA-BELLIDO ◽  
JAMES B. JAGO ◽  
JAMES G. GEHLING
Keyword(s):  
Lower Cambrian ◽  
South Australia

scholarly journals A New Leanchoiliid Megacheiran Arthropod from the Lower Cambrian Emu Bay Shale, South Australia

2011 ◽  
Vol 56 (2) ◽  
pp. 385-400 ◽  
Author(s):  
Gregory D. Edgecombe ◽  
Diego C. García-Bellido ◽  
John R. Paterson
Keyword(s):  
Lower Cambrian ◽  
South Australia

scholarly journals Ediacaran to lower Cambrian basement in eastern George V Land (Antarctica): Evidence from U Pb dating of gneiss xenoliths and implications for the South Australia- East Antarctica connection

Lithos ◽  
2018 ◽  
Vol 318-319 ◽  
pp. 219-229 ◽  
Author(s):  
Gaëlle Lamarque ◽  
Jérôme Bascou ◽  
René-Pierre Ménot ◽  
Jean-Louis Paquette ◽  
Simon Couzinié ◽  
...  
Keyword(s):  
Lower Cambrian ◽  
South Australia ◽  
East Antarctica ◽  
The South

The taphonomy and affinities of the problematic fossilMyoscolexfrom the Lower Cambrian Emu Bay Shale of South Australia

1997 ◽  
Vol 71 (1) ◽  
pp. 22-32 ◽  
Author(s):  
Derek E. G. Briggs ◽  
Christopher Nedin
Keyword(s):  
Muscle Tissue ◽  
Lower Cambrian ◽  
Soft Tissues ◽  
South Australia ◽  
Variable Number ◽  
Trunk Muscles ◽  
Burgess Shale ◽  
Organic Residues ◽  
Striking Contrast

Most of the specimens ofMyoscolex atelesGlaessner, 1979, the most abundant soft-bodied taxon in the Big Gully fauna from the Lower Cambrian Emu Bay Shale of South Australia, preserveonlythe phosphatized trunk muscles, in striking contrast to the organic residues that characterize other Burgess-Shale-type biotas. This is the oldest phosphatized muscle tissue and the first thus far reported from the Cambrian. The extent of phosphatization implies a source in addition to the animal itself, and this is reflected in high levels of phosphate in the Big Gully sequence compared to other shales. The apparent anomaly posed by the extensive preservation of labile muscle tissue as opposed to the more decay resistant cuticle is explained by the role of bacterial processes in the preservation of soft tissues. New specimens ofMyoscolexreveal a variable number of trunk somites with possible tergites, and flap-like appendages. There is evidence for at least three eyes on the head, and a proboscis may have been present. An annelid affinity is rejected andMyoscolexis reinterpreted as anOpabinia-likeanimal with possible affinities with the arachnomorph arthropods.

scholarly journals Mollusks from the upper Shackleton Limestone (Cambrian Series 2), Central Transantarctic Mountains, East Antarctica

2019 ◽  
Vol 93 (3) ◽  
pp. 437-459 ◽  
Author(s):  
Thomas M. Claybourn ◽  
Sarah M. Jacquet ◽  
Christian B. Skovsted ◽  
Timothy P. Topper ◽  
Lars E. Holmer ◽  
...  
Keyword(s):  
Antarctic Peninsula ◽  
Lower Cambrian ◽  
North China ◽  
South Australia ◽  
East Antarctica ◽  
Low Diversity ◽  
Transantarctic Mountains ◽  
The Antarctic

AbstractAn assemblage of Cambrian Series 2, Stages 3–4, conchiferan mollusks from the Shackleton Limestone, Transantarctic Mountains, East Antarctica, is formally described and illustrated. The fauna includes one bivalve, one macromollusk, and 10 micromollusks, including the first description of the speciesXinjispira simplexZhou and Xiao, 1984 outside North China. The new fauna shows some similarity to previously described micromollusks from lower Cambrian glacial erratics from the Antarctic Peninsula. The fauna, mainly composed of steinkerns, is relatively low diversity, but the presence of diagnostic taxa, including helcionelloidDavidonia rostrata(Zhou and Xiao, 1984), bivalvePojetaia runnegariJell, 1980, cambroclavidCambroclavus absonusConway Morris in Bengtson et al., 1990, and bradoriidSpinospitella coronataSkovsted et al., 2006, as well as the botsfordiid brachiopodSchizopholis yorkensis(Ushatinskaya and Holmer in Gravestock et al., 2001), in the overlying Holyoake Formation correlates the succession to theDailyatia odysseiZone (Cambrian Stages 3–4) in South Australia.

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