Also known as SSF 14.4
Where: South Australia, Australia (31.3° S, 138.9° E: paleocoordinates 16.9° N, 162.3° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Wirrealpa Limestone Formation, Toyonian (512.9 - 510.2 Ma)
• STRATIGRAPHIC RELATIONS: From Wirrealpa Lmst which overlies the Billy Creek Fm and is overlain by the Moodlatana Fm - both bounding units are Cambrian in age. Laterally equivalent to Arfrona Creek Lmst of Flinders Range and Ramsay, Stansbury, and Coobowie Lmst, and Corrodgery and Moonan Fm of Yorke Peninsula THICKNESS: From bed less than 2 m thick within 130 m thick section. AGE: Traditionally assigned to Middle Cambrian based on lateral facies relationships, lithostratigraphy, and age diagnostic trilobites. However, new data from sequence stratigraphy and paleontological evidence suggest a late Early Cambrian age (equivalent to Toyonian of Siberan Platform). STRATIGRAPHIC POSITION: 8 m above PBDB# 64460 and 15 m below PBDB# 64462.
• bed-level stratigraphic resolution
Environment/lithology: open shallow subtidal; lithified, concretionary, sandy limestone
Size class: macrofossils
Collection methods: COLLECTOR: Collected by B.C. Youngs (see Youngs, 1977). REPOSITORY: SADME (South Australia Department of Mines and Energy, Adelaide.
Primary reference: G. A. Brock and B.J. Cooper. 1993. Shelly fossils from the Early Cambrian (Toyonian) Wirrealpa, Arrona Creek, and Ramsay Limestones of South Australia. Journal of Paleontology 67(5):758-787 [A. Miller/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 64461: authorized by Austin Hendy, entered by Austin Hendy on 08.09.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Echinodermata indet. Klein 1754 | |
Hyolitha | |
Hyptiotheca karraculum Bengtson et al. 1990 | |
Hyolithidae indet. Nicholson 1889 | |
"Actinotheca sp." = Cupitheca
"Actinotheca sp." = Cupitheca Duan 1984 | |
Brachiopoda | |
Brachiopoda indet. Cuvier 1805 | |
Lingulata | |
Eothele napuru Kruse 1990 | |
Lingulella sp. Salter 1866 | |
"Hadrotreta primaeva" = Vandalotreta djagoran
"Hadrotreta primaeva" = Vandalotreta djagoran Walcott 1902 | |
Helcionelloida | |
"Bemella cf. pauper" = Ilsanella paupera, "Latouchella aff. iacobinica" = Igorella iacobinica
"Bemella cf. pauper" = Ilsanella paupera Billings 1872
"Latouchella aff. iacobinica" = Igorella iacobinica Geyer 1986 | |
Pelagiella cf. adunca He et al. 1984 | |
Trilobita | |
Trilobita indet. Walch 1771 trilobite | |
Coeloscleritophora | |
Chancelloriida indet. Walcott 1920 | |
Torellella cf. laevigata Linnarsson 1871 | |
Chlorophyceae | |
Protomelission gatehousei Brock and Cooper 1993 |