D89, 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 69672: 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
Echinoidea
 Cidaroida - Cidaridae
"Cidaris" fasciculata Klipstein 1843 pencil urchin
"Cidaris" flexuosa Münster 1841 pencil urchin
  -
"Cidaris" hausmanni Wissmann 1841 sea urchin
Crinoidea
 Isocrinida - Isocrinidae
Scaphopoda
 Dentaliida - Dentaliidae
"Dentalium undulatum" = Plagioglypta undulata
"Dentalium undulatum" = Plagioglypta undulata Münster 1841 tusk shell
Gastropoda
 Neritoina - Neritopsidae
"Neritopsis armata" = Cassianopsis armata
"Neritopsis armata" = Cassianopsis armata Münster 1841 snail
 Murchisoniina - Soleniscidae
Macrochilina brevispira Kittl 1894 snail
 Seguenzioidea - Eucyclidae
Eucycloscala sp. Cossmann 1895 snail
 Neritoidea - Naticopsidae
"Naticopsis cassiana" = Hologyra cassiana
"Naticopsis cassiana" = Hologyra cassiana Wissmann 1841 snail
 Cerithioidea - Prostyliferidae
Ptychostoma mojsisovicsi Kittl 1892 snail
Ptychostoma pleurotomoides Wissmann 1841 snail
 Architaenioglossa - Ampullinidae
 Zygopleuroidea - Protorculidae
"Anoptychia canalifera" = Atorcula canalifera
"Anoptychia canalifera" = Atorcula canalifera Münster 1841 snail
 Caenogastropoda - Coelostylinidae
Coelostylina sp. Kittl 1894 snail
Coelostylina conica Münster 1841 snail
 Sorbeoconcha - Purpurinidae
Angularia subpleurotomaria Münster 1841 periwinkle
Bivalvia
 Nuculida - Nuculidae
"Palaeonucula strigillata" = Palaeonucula strigilata
"Palaeonucula strigillata" = Palaeonucula strigilata Goldfuss 1837 nut clam
 Pectinida - Pectinoidae
"Pecten" sp. Müller 1776 scallop
 Pectinida - Limidae
"Lima" sp. Bruguière 1797 file clam
 Ostreida - Cassianellidae
Cassianella ampezzana Bittner 1895 oyster
 Ostreida - Bakevelliidae
Gervillia sp. Defrance 1820 oyster
 Arcida - Parallelodontidae