Where: Tasmania, Australia (43.2° S, 147.2° E: paleocoordinates 78.4° S, 142.5° E)
• coordinate based on unpublished field data
• outcrop-level geographic resolution
When: Abels Bay Formation, Wuchiapingian (259.9 - 254.2 Ma)
• Fossils occur throughout a few meters of section, but are concentrated in 38 cm thick bed. The Abels Bay Fm is the youngest marine Permian unit in Tasmanian, of late Lymingtonian age. Briggs (1998) correlated the late Lymingtonian with his mainland brachiopod zones, ranging from the Echinalosia wassi zone to the Echinalosia deari zone and with palynological zones APP4.3 and APP5. Radiometric calibration of these palynological zones by Laurie et al. (2016) suggests that APP4.3 is mid-Wuchiapingian and APP5 spans the late Wuchiapingian and Changhsingian. A Wuchiapingian age is assigned to the Abels Bay Formation here.
• group of beds-level stratigraphic resolution
Environment/lithology: offshore; lithified siltstone
Size class: macrofossils
Preservation: mold/impression
Collection methods: All fossils figured herein are deposited in the fossil collections of the Geological Survey of Tasmania (GST) or the Geology Department, University of Tasmania (UTGF).
Primary reference: M. J. Clarke. 1987. Late Permian (late Lymingtonian = ?Kazanian) brachiopods from Tasmania. Alcheringa 11:261-289 [T. Olszewski/L. Fall/L. Fall]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 51314: authorized by Tom Olszewski, entered by Leigh Fall on 02.06.2005, edited by Matthew Clapham
Creative Commons license: CC BY (attribution)
Taxonomic list
Stenolaemata | |
Stenopora crinita Lonsdale 1845 | |
Rhynchonellata | |
Plekonella acuta Campbell 1953 | |
Birchsella spinosa n. gen. n. sp., "Notospirifer minutus" = Mesopunctia minuta
Birchsella spinosa n. gen. n. sp. Clarke 1987
"Notospirifer minutus" = Mesopunctia minuta Campbell 1960 | |
Fletcherithyris biundata M'Coy 1847 | |
"Maorielasma globosum" = Maorielasma imperatum
"Maorielasma globosum" = Maorielasma imperatum Waterhouse 1964 | |
Strophomenata | |
Terrakea brachythaera Morris 1845 | |
"Wyndhamia ovalis" = Echinalosia ovalis
"Wyndhamia ovalis" = Echinalosia ovalis Maxwell 1954 | |
Bivalvia | |
Stutchburia cf. compressa Morris 1845 clam | |
Vacunella curvata Morris 1845 clam
Myonia triangulata clam | |
Megadesmus gryphoides, "Megadesmus grandis" = Megadesmus (Cleobis) grandis, Pleurikodonta elegans, Astartila intrepida
Megadesmus gryphoides de Koninck 1876 clam
"Megadesmus grandis" = Megadesmus (Cleobis) grandis Dana 1847 clam
Pleurikodonta elegans Runnegar 1965 clam
Astartila intrepida Dana 1847 clam | |
Schizodus sp. King 1844 clam | |
Etheripecten leniusculus Dana 1847 scallop | |
Merismopteria macroptera Morris 1845 oyster | |
Gastropoda | |
Warthia micromphala Morris 1845 snail | |
Dictyopteridiopsida | |
Gangamopteris sp. McCoy 1875 |