Myoponga Beach Sellick Hill C Section 5 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: Stenotheca drepanoida small shelly zone, C Member (Sellick Hill Formation), Botomian (516.0 - 512.9 Ma)

• bed-level stratigraphic resolution

Environment/lithology: lithified, nodular, gray, calcareous mudstone and lithified, nodular, gray, calcareous siltstone

• ..dark gray nodular lime mudstone and calcareous siltstone, with only minor proportions of quartzose siltstone to very fine grained sandstone. A number of laterally extensive (some beds can be traced laterally for several hundred metres), intraformational flat-pebble conglomerates occur within this association. Phosphate hardgrounds veneer smoothly eroded surfaces and dense lags of hyolith conchs.

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 97717: authorized by Pete Wagner, entered by Pete Wagner on 26.08.2010, edited by Hallie Street

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
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
Hyolitha
 Hyolithida -
Hyptiotheca karraculum Bengtson et al. 1990
Parkula bounites Bengtson et al. 1990
 Hyolithida - Nelegerocornidae
Microcornus sp. Mambetov 1972
Microcornus petilus Bengtson et al. 1990
 Orthothecida - Circothecidae
Conotheca australiensis Bengtson et al. 1990
 Orthothecida -
"Cupittheca sp. 1" = Cupitheca
"Cupittheca sp. 1" = Cupitheca Duan 1984
Watsonella crosbyi
  -
Watsonella crosbyi Grabau 1900
Helcionelloida
 Helcionellida - Helcionellidae
Obtusoconus brevis Esakova and Zhegallo 1996
Aculifera
  - Halkieriidae
"Thambetolepis delicata" = Sinosachites
"Thambetolepis delicata" = Sinosachites
 Sachitida -
"Halkieria parva" = Australohalkieria parva Bengtson et al. 1990
Hippopharangites dailyi Bengston 1990