Point Margaret, Trochocyathus-Trematotrochus band (Paleocene to of Australia)

Where: Victoria, Australia (38.7° S, 143.2° E: paleocoordinates 61.4° S, 146.7° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Dilwyn Formation, Thanetian to Thanetian (59.2 - 47.8 Ma)

• "Trochocyathus-Trematotrochus band" in the lowermost part of the formation, close to the Paleocene/Eocene boundary

• group of beds-level stratigraphic resolution

Environment/lithology: shoreface; lithified sandstone

Size class: macrofossils

Primary reference: J. D. Stilwell. 2003. Macropalaeontology of the Trochocyathus-Trematotrochus band (Paleocene/Eocene boundary), Dilwyn Formation, Otway Basin, Victoria. Alcheringa 27:245-275 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 85124: authorized by Wolfgang Kiessling, entered by Uta Merkel on 01.12.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Echinoidea
 Spatangoida - Hemiasteridae
? Hemiaster sp. Agassiz and Desor 1847 heart urchin
Crustacea
  -
Crustacea indet. BrĂ¼nnich 1772
Rhynchonellata
 Terebratulida - Bouchardiidae
Bouchardia sp. Davidson 1850
Bivalvia
  -
Bivalvia "indet. A" Linnaeus 1758 clam
Bivalvia "indet. B" Linnaeus 1758 clam
 Nuculida - Nuculidae
Leionucula cf. palaioanaxea Stilwell 1993 nut clam
 Nuculanida - Nuculanidae
Ledina cf. paucigradata pointed nut clam
 Cardiida - Erycinidae
Erycinidae indet. Gray 1847 clam
 Cardiida - Lahillidae
 Pectinida - Propeamussiidae
Parvamussium sp. Sacco 1897 mud scallop
 Arcida - Limopsidae
Scaphopoda
 Gadilida - Gadilidae
Gadila laguncula tusk shell
 Dentaliida - Dentaliidae
? Dentalium sp. Linnaeus 1758 tusk shell
Gastropoda
 Opisthobranchiata -
 Opisthobranchiata - Cylichnidae
Cylichnania sp. Marwick 1931 snail
 Sorbeoconcha - Naticidae
? Euspira sp. Agassiz 1837 moon snail
 Sorbeoconcha - Aporrhaidae
 Neogastropoda - Pyropsidae
 Neogastropoda - Horaiclavidae
 Neogastropoda - Volutidae
 Neogastropoda - Cancellariidae
? Bonellitia sp. Jousseaume 1887 snail
 Neogastropoda - Volutomitridae
 Neogastropoda - Mitridae
"Mitra" rhytidata mitre shell
 Neogastropoda - Nassariidae
? Nassaria sp. Link 1807 snail
 Sorbeoconcha - Triforidae
 Sorbeoconcha - Vitrinellidae
Circulus sp. Jeffreys 1842 snail
 Cerithioidea - Turritellidae
 Heterostropha - Pyramidellidae
? Odostomia sp. Fleming 1817 snail
 Heterostropha - Acteonidae
Anthozoa
 Scleractinia - Caryophylliidae
Trochocyathus (Platycyathus) sp. Fromentel 1863 stony coral
Trochocyathus wilkinsoni Dennant 1904 stony coral
 Scleractinia - Turbinoliidae
Trematotrochus sp. T.-Woods 1879 stony coral