Becketts Gully, Irwin River Area (Permian of Australia)

Where: Western Australia, Australia (28.9° S, 115.5° E: paleocoordinates 63.6° S, 97.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Fossil Cliff Formation, Sakmarian (293.5 - 290.1 Ma)

• From lowermost limestone bed, limestone band below Round Hill, hard limestone band

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

Size class: macrofossils

Primary reference: J. M. Dickins. 1963. Permian pelecypods and gastropods from western Australia. Bulletin of the Bureau of Mineral Resources, Geology and Geophysics 63:1-203 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 85848: authorized by Matthew Clapham, entered by Matthew Clapham on 16.01.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Rostroconchia
 Conocardiida - Conocardiidae
"Conocardium" sp. Bronn 1835
Bivalvia
 Mytilida - Mytilidae
Modiolus koneckii n. sp. Dickins 1963 mussel
 Pectinida - Streblochondriidae
? Streblopteria sp. McCoy 1851 scallop
 Cardiida - Kalenteridae
Stutchburia hoskingae Dickins 1963 clam
 Pholadomyida - Edmondiidae
Edmondia prichardi Dickins 1963 clam
 Nuculanida - Malletiidae
Anthraconeilo "sp. nov." Girty 1912 clam
Gastropoda
 Bellerophontida - Bellerophontidae
Bellerophon cf. formani Dickins 1963 snail
Retispira irwinensis Dickins 1963 snail
 Murchisoniina - Soleniscidae
Macrochilina winensis Dickins 1963 snail
Labeled Holmwood Shale, but probably Fossil Cliff Fm
 Murchisoniina - Gosseletinidae
Baylea perthensis, "Mourlonia (Pseudobaylea) freneyensis" = Pseudobaylea freneyensis
Baylea perthensis Dickins 1963 snail
"Mourlonia (Pseudobaylea) freneyensis" = Pseudobaylea freneyensis Dickins 1963 snail