Also known as Platyceras (Orthonychia)-Muriferella Community

Where: New South Wales, Australia (34.0° S, 148.8° E: paleocoordinates 5.9° S, 175.1° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Garra Formation, Lochkovian (419.2 - 410.8 Ma)

• Formation generally regarded as Lochkovian-Pragian, but much of study has been closer to Wellington, where the formation seems to be younger. Conodonts support late Lochkovian age for formation in type area. See PBDB collections 25696-25698 and refs. 7152, 7167, and 7168.

• formation-level stratigraphic resolution

Environment/lithology: marine; grainstone

Size class: macrofossils

Preservation: replaced with silica

Collection methods: Farrell uses quantitative association analysis to recognize three communities. These are: (1) Vetotuba-Spirigerina (S.) supramarginalis Comm., beds 2-97; (2) Platyceras (Orthonychia)-Muiferella Comm., beds. 104-512; (3) Cyrtina-Ogilviella-Howellella Comm., beds 518-1196. Because these sets of beds also differ in predominant lithology, it seems naturally to amalgamate beds into three lists. Abundances given in table 1.

Primary reference: J. R. Farrell. 1992. The Garra Formation (Early Devonian: Late Lochkovian) between Cumnock and Larras Lee, New South Wales, Australia: stratigraphic and structural setting, faunas, and community sequence. Palaeontographica Abteilung A 222(1-3):1-41 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 25706: authorized by Michael Foote, entered by Michael Foote on 23.09.2002, edited by Pete Wagner

Creative Commons license: CC BY (attribution)