Where: Italy (46.4° N, 11.9° E: paleocoordinates 4.5° N, 25.3° E)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Tereso Horizon Member (Werfen Formation), Changhsingian (254.2 - 252.2 Ma)
• Tereso Horizon is the basal unit of the Werfen Formation, and contains the P-T boundary in its upper part.
• member-level stratigraphic resolution
Environment/lithology: shallow subtidal; ooidal grainstone and packstone
Size classes: macrofossils, mesofossils, microfossils
Primary reference: C. B. Neri, M. Pasini, and R. Posenato. 1986. The Permian/Triassic boundary and the Early Scythian sequence - Tereso section, Dolomites. Permian and Permian-Triassic Boundary in the South-Alpine Segement of the Western Tethys - IGCP Project No. 203 111-116 [D. Bottjer/C. Powers/C. Jamet]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 44450: authorized by David Bottjer, entered by Catherine Powers on 12.09.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Nodosariata | |
Nodosaria sp. Lamarck 1812
Dentalina sp. d'Orbigny 1826 | |
Foraminifera | |
Glomospira sp. Rzehak 1895 | |
Tubothalamea | |
Hemigordius sp. Schubert 1908 | |
Foraminifera | |
Pachyphloia sp. Lange 1925 | |
Gastropoda | |
"Bellerophon cf. vaceki" = Warthia vaceki
"Bellerophon cf. vaceki" = Warthia vaceki Bittner 1899 snail | |
Bivalvia | |
Bivalvia indet. Linnaeus 1758 clam | |
Towapteria cf. scythica Wirth 1936 oyster | |
Strophomenata | |
Ombonia sp. Caneva 1906 | |
Spinomarginifera sp. Huang 1932 | |
Rhynchonellata | |
"Crurithyris extima" = Orbicoelia extima
"Crurithyris extima" = Orbicoelia extima Grant 1970 | |
? Araxathyris sp. Grunt 1965 | |
Polychaeta | |
"Spirorbis" sp. Daudin 1800 | |
Deuteropoda | |
Ostracoda indet. Latreille 1802 ostracod | |
Echinoidea | |
Miocidaris sp. Döderlein 1887 pencil urchin |