Otway Basin, Drik Drik-1 Well (Cretaceous of Australia)

Where: Victoria, Australia (38.0° S, 141.3° E: paleocoordinates 66.4° S, 136.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Belfast Mudstone Formation (Sherbrook Group), Coniacian (89.8 - 86.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: prodelta; lithified mudstone and lithified, fine-grained sandstone

• low-energy hydrodynamic regime in a quiescent, deeper shelf setting
• dark grey mudstone and minor fine sandstone

Size class: macrofossils

Collection methods: core,

Primary reference: J. D. Stilwell and S. J. Gallagher. 2009. Biostratigraphy and macroinvertebrate palaeontology of the petroleum-rich Belfast Mudstone (Sherbrook Group, uppermost Turonian to mid-Santonian), Otway Basin, southeastern Australia. Cretaceous Research 30:873-884 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90701: authorized by Wolfgang Kiessling, entered by Uta Merkel on 13.08.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Nuculanida - Nuculanidae
Mesosaccella sp.
Mesosaccella sp. Chavan 1946 pointed nut clam
 Myalinida - Inoceramidae
Tethyoceramus madagascariensis
 Trigoniida - Trigoniidae
Oistotrigonia austronana n. sp.
Oistotrigonia austronana n. sp. Stilwell and Gallagher 2009 clam