Myoponga Beach Sellick Hill A Template (Cambrian of Australia)

Where: South Australia, Australia (35.4° S, 138.4° E: paleocoordinates 13.1° N, 160.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Bemella communis small shelly zone, A Member (Sellick Hill Formation), Botomian (516.0 - 512.9 Ma)

• "A" is a lithofacies rather than a proper member, intertonguing with lower part of "B." Section 5

• bed-level stratigraphic resolution

Environment/lithology: sandstone and brown, red siltstone

• Coarse arkosic sandstone with minor thin micaceous red-brown muddy siltstone. A signfiicant calcarenite component is indicated in some interbeds by ooids, peloids and rare shell fragments, while dolomitic mudclasts are scattered throughout.

Size classes: mesofossils, microfossils

Preservation: cast, original phosphate

Collection methods: bulk, chemical

Primary reference: D. I. Gravestock, E. M. Alexander, Y. E. Demidenko, N. V. Esakova, L. E. Holmer, J. B. Jago, T.-r. Lin, L. M. Melnikova, P. Yu Parkhaev, A. Yu Rozanov, G. T. Ushatinskaya, W.-l. Zang, E. A. Zhegallo and A. Yu Zhuravlev. 2001. The Cambrian biostratigraphy of the Stansbury Basin, South Australia. Russian Academy of Sciences, Transactions of the Palaeontological Institute 282:1-344 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 97700: authorized by Pete Wagner, entered by Pete Wagner on 24.08.2010, edited by Hallie Street

Creative Commons license: CC BY (attribution)

Taxonomic list

Hyolitha
 Orthothecida -
"Cupittheca sp. 2" = Cupitheca, "Cupittheca sp. 1" = Cupitheca
"Cupittheca sp. 2" = Cupitheca Duan 1984
"Cupittheca sp. 1" = Cupitheca Duan 1984
 Orthothecida - Circothecidae
Conotheca australiensis Bengtson et al. 1990
 Hyolithida - Hyolithidae
Helcionelloida
  - Stenothecidae
Stenotheca drepanoida He et al. 1984
Watsonella crosbyi Grabau 1900
  - Helcionellidae
"Mackinnonia rostrata" = Davidonia rostrata, Obtusoconus brevis, "Figurina nana" = Capitoconus nana
"Mackinnonia rostrata" = Davidonia rostrata Zhou and Xiao 1984
Obtusoconus brevis Esakova and Zhegallo 1996
"Figurina nana" = Capitoconus nana Zhou and Xiao 1984
 Sachitida -
"Halkieria parva" = Australohalkieria parva
"Halkieria parva" = Australohalkieria parva Bengtson et al. 1990
Aculifera
  - Halkieriidae
"Thambetolepis delicata" = Sinosachites
"Thambetolepis delicata" = Sinosachites
 Hyolithelminthida - Torellellidae
Torellella curva Rozanov and Missarzhevsky 1966
Torellella biconvexa Rozanov et al. 1969
Torellella explicata Missarzhevsky and Mambetov 1981
 Hyolithelminthida - Hyolithellidae
Hyolithellus sp. Billings 1872
Hyolithellus micans Billings 1871
Hyolithellus filiformis Bengtson et al. 1990
Coeloscleritophora
 Chancelloriida - Chancelloriidae
Eremactis mawsoni Bengtson 1990
Chancelloria sp. Walcott 1920
Chancelloria racemifundis Bengston et al. 1990
Allonnia ex gr. tripodophora Doré and Reid 1965