Illawarra District (USNM coll) (Permian of Australia)

Where: New South Wales, Australia (34.5° S, 150.9° E: paleocoordinates 69.8° S, 159.2° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Gerringong Formation, Wordian (266.9 - 264.3 Ma)

• Formerly Gerringong Volcanics. A sample 2 m below the top of the formation yielded a radiometric date of 263.51 Ma, within the basal Capitanian (Metcalf et al., 2015), but nearly all fossils come from the basal Westley Park Sandstone or Kiama Sandstone members. Therefore, a Wordian age is assigned.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified, volcaniclastic siliciclastic sediments

Size class: macrofossils

Preservation: mold/impression

Collected by J. Dana; reposited in the USNM

Primary reference: J. D. Dana. 1849. Appendix I. Descriptions of Fossils. 1. Fossils of New South Wales. United States Exploring Expedition During the Years 1838, 1839, 1840, 1842, 1842 Under the Command of Charles Wilkes, U.S.N. Atlas: Geology 681-720 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 133337: authorized by Matthew Clapham, entered by Matthew Clapham on 09.09.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Crinoidea
 Ampelocrinida - Tribrachyocrinidae
Pentadia reniformis n. sp. Dana 1847 Sea lily
Pentadia spatangus n. sp. Dana 1847 Sea lily
Pentadia trigona n. sp. Dana 1847 Sea lily
Gastropoda
 Murchisoniina - Gosseletinidae
"Pleurotomaria strzeleckiana" = Mourlonopsis strzeleckiana
"Pleurotomaria strzeleckiana" = Mourlonopsis strzeleckiana Morris 1845 snail
 Bellerophontida - Euphemitidae
"Bellerophon micromphalus" = Warthia micromphala, "Bellerophon strictus n. sp." = Warthia stricta
"Bellerophon micromphalus" = Warthia micromphala Morris 1845 snail
"Bellerophon strictus n. sp." = Warthia stricta Dana 1847 snail
 Euomphalina - Platyceratidae
Platyschisma rotundatum Morris 1845 snail
Bivalvia
 Pholadomyida - Megadesmidae
"Maeonia gigas" = Megadesmus (Cleobis) grandis, "Maeonia axinia n. sp." = Pyramus myiformis
"Maeonia gigas" = Megadesmus (Cleobis) grandis Dana 1847 clam
"Maeonia axinia n. sp." = Pyramus myiformis Dana 1847 clam
 Cardiida - Trapezidae
""Modiolopsis" siliqua n. sp." = Cypricardia siliqua
""Modiolopsis" siliqua n. sp." = Cypricardia siliqua Dana 1847 clam
 Ostreida - Pterineidae
"Pterinea macroptera" = Merismopteria macroptera, "Modiolopsis acutifrons n. sp." = Merismopteria macroptera
"Pterinea macroptera" = Merismopteria macroptera Morris 1845 oyster
"Modiolopsis acutifrons n. sp." = Merismopteria macroptera Morris 1845 oyster
 Pectinida - Heteropectinidae
"Pecten leniusculus n. sp." = Etheripecten leniusculus
"Pecten leniusculus n. sp." = Etheripecten leniusculus Dana 1847 scallop
  -
Modiolopsis praerupta n. sp. Dana 1847 clam
Rhynchonellata
 Spiriferida - Ingelarellidae
"Spirifera duodecimcostata" = Glendonia duodecimcostata
"Spirifera duodecimcostata" = Glendonia duodecimcostata M'Coy 1847
 Spiriferida - Trigonotretidae
"Spirifer phalaena" = Sulciplica phalaena
"Spirifer phalaena" = Sulciplica phalaena Dana 1849
 Spiriferida - Spiriferidae
"Spirifer" sp. Sowerby 1818
 Terebratulida - Dielasmatidae
""Terebratula" elongata" = Dielasma elongatum
""Terebratula" elongata" = Dielasma elongatum von Schlotheim 1816
 Terebratulida - Terebratulidae
? Terebratula sp. Müller 1776
Stenolaemata
 Trepostomida - Stenoporidae
"Chaetetes gracilis" = Stenopora gracilis
"Chaetetes gracilis" = Stenopora gracilis Dana 1849