Gap Creek Road ~150 meters (Ordovician of Australia)

Also known as The Gap

Where: Tasmania, Australia (42.7° S, 146.5° E: paleocoordinates 10.0° N, 168.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pontoon Hill Member (Mt. Field Siltstone Formation), Bendigonian (474.9 - 473.1 Ma)

• Be2-3

• group of beds-level stratigraphic resolution

Environment/lithology: marine; calcareous siltstone

• dark grey calcareous siltstone

Size class: macrofossils

Preservation: cast

Primary reference: J. R. Laurie. 1980. Early Ordovician orthide brachiopods from southern Tasmania. Alcheringa 4(1):11-23 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 210901: authorized by Pete Wagner, entered by Pete Wagner on 21.06.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

Pterobranchia
 Graptoloidea - Anisograptidae
Psigraptus cf. arcticus Jackson 1967 graptolite
Trilobita
 Proetida - Hystricuridae
"Tanybregma tasmaniensis" = Hillyardina tasmaniensis, "Hystricurus lewisi" = Tasmanaspis lewisi
"Tanybregma tasmaniensis" = Hillyardina tasmaniensis Jell and Stait 1985 trilobite
"Hystricurus lewisi" = Tasmanaspis lewisi Kobayashi 1940 trilobite
 Asaphida - Hungaiidae
 Phacopida - Cheiruridae
Rhynchonellata
 Orthida - Eoorthidae