D75, Cassian bulk collection (Triassic of Italy)

Where: Italy (46.5° N, 12.1° E: paleocoordinates 12.3° N, 20.1° E)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Cassian Formation, Julian (235.0 - 232.0 Ma)

• Age range indicated as Langobardian ton ?Julian, now confirmed to be early Carnian (Cordevolian)

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

• Patch reefs on extensive carbonate platform
• Small patch reefs, laterally grading in to oolitic limestones. Material supposedly stems from reefs, although it was mostly collected from marly interbeds.

Size class: macrofossils

Preservation: original aragonite, original calcite

Collection methods: bulk,

Primary reference: F. T. Fürsich and J. Wendt. 1977. Biostratinomy and palaeoecology of the Cassian Formation (Triassic) of the Southern Alps. Palaeogeography, Palaeoclimatology, Palaeoecology 22:257-323 [W. Kiessling/W. Kiessling/W. Kiessling]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 69652: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 01.03.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• Taxonomy has not been revised since 1977
unclassified
  -
Echinoidea
 Cidaroida - Cidaridae
"Cidaris" roemeri Wissmann 1841 pencil urchin
Balanocidaris dorsata pencil urchin
Gastropoda
 Heterostropha - Anoptychiidae
Anoptychia sp. Koken 1892 snail
 Seguenzioidea - Eunemopsidae
Pseudoclanculus cassianus Wissmann 1841 snail
 Sorbeoconcha - Naticidae
"Natica" sp. Scopoli 1777 moon snail
 Murchisoniina - Wortheniellidae
"Worthenia coronata" = Rinaldoella coronata
"Worthenia coronata" = Rinaldoella coronata Münster 1841 snail
 Murchisoniina - Phymatopleuridae
Worthenia triton d'Orbigny 1849 snail
Scaphopoda
 Dentaliida - Dentaliidae
"Dentalium undulatum" = Plagioglypta undulata
"Dentalium undulatum" = Plagioglypta undulata Münster 1841 tusk shell
Bivalvia
 Trigoniida - Myophoriidae
Myophoria sp. Bronn 1834 clam
 Ostreida - Cassianellidae
Cassianella decussata Münster 1841 oyster
 Nuculida - Nuculidae
Palaeonucula sp. Quenstedt 1930 nut clam
 Nuculanida - Malletiidae
Rhynchonellata
 Terebratulida - Terebratulidae
 Athyridida - Koninckinidae
Koninckina sp. Suess 1853
 Athyridida - Diplospirellidae
Diplospirella sufflata Verneuil 1855
 Spiriferinida - Spiriferinidae
Spiriferina sp. d'Orbigny 1847