D69, Cassian bulk collection (Triassic of Italy)

Also known as Reef 162

Where: Italy (46.7° N, 12.2° E: paleocoordinates 12.5° N, 20.3° E)

• coordinate based on nearby landmark

• 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: reef, buildup or bioherm; 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 69660: 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
"Cidaris" biconica Zardini 1973 sea urchin
"Cidaris" fustis Laube 1865 sea urchin
 Cidaroida - Cidaridae
Balanocidaris dorsata pencil urchin
 Encrinida - Encrinidae
"Entrochus cassianus" = Chelocrinus cassianus
"Entrochus cassianus" = Chelocrinus cassianus Laube 1865 Sea lily
Gastropoda indet. Cuvier 1795 snail
 Murchisoniina - Zygopleuridae
"Zygopleura tenuis" = Ampezzopleura tenuis
"Zygopleura tenuis" = Ampezzopleura tenuis Münster 1841 snail
 Murchisoniina - Lophospiridae
Eunema tietzei Kittl 1894 snail
 Murchisoniina - Wortheniellidae
"Worthenia spuria" = Wortheniella spuria
"Worthenia spuria" = Wortheniella spuria Münster 1841 snail
 Neritoina - Fedaiellidae
"Naticopsis neritacea" = Fedaiella neritacea
"Naticopsis neritacea" = Fedaiella neritacea Münster 1841 snail
 Neogastropoda - Nassariidae
"Fusus" nodosocarinatus Münster 1841 snail
 Caenogastropoda - Coelostylinidae
Trypanostylus sp. Cossmann 1895 snail
Coelostylina conica Münster 1841 snail
Bivalvia indet. Linnaeus 1758 clam
 Ostreida - Bakevelliidae
Cultriopsis angusta Munster 1838 oyster
 Pectinida - Plicatulidae
Plicatula sp. Lamarck 1801 scallop
 Nuculida - Nuculidae
"Palaeonucula strigillata" = Palaeonucula strigilata
"Palaeonucula strigillata" = Palaeonucula strigilata Goldfuss 1837 nut clam
 Rhynchonellida - Rhynchonellidae
 Thecideida - Thecospiridae
Thecospira sp. Zugmayer 1882