D12d clay facies, Cassian bulk collection (Triassic of Italy)

Also known as Reef 162

Where: Italy (46.5° N, 12.0° E: paleocoordinates 12.4° 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• coordinate based on unpublished field data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: reef, buildup or bioherm; lithified claystone

• 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 69665: 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
Demospongiae
 Spirosclerophorida -
Rhynchonellata
 Terebratulida - Terebratulidae
"Terebratula" sp. Müller 1776
Bivalvia
 Nuculida - Nuculidae
Palaeonucula expansa, "Palaeonucula strigillata" = Palaeonucula strigilata
"Palaeonucula strigillata" = Palaeonucula strigilata Goldfuss 1837 nut clam
 Ostreida - Bakevelliidae
Cultriopsis angusta Munster 1838 oyster
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium simile Münster 1841 tusk shell
Gastropoda
 Caenogastropoda - Coelostylinidae
Coelostylina sp. Kittl 1894 snail
Coelostylina karreri Kittl 1894 snail
Spirochrysalis nympha Münster 1841 snail
 Pseudomelanoidea - Pseudomelaniidae
"Oonia miles" = Pseudomelania (Oonia) snail
Oonia similis Münster 1841 snail
 Caenogastropoda - Goniasmatidae
 Neritoina - Neritopsidae
"Neritopsis armata" = Cassianopsis armata
"Neritopsis armata" = Cassianopsis armata Münster 1841 snail
 Schizogonioidea - Schizogoniidae
Schizogonium serratum Münster 1841 snail
 Murchisoniina - Zygopleuridae
Zygopleura arctecostata Münster 1841 snail
"Zygopleura tenuis" = Ampezzopleura tenuis Münster 1841 snail
 Murchisoniina - Wortheniellidae
"Worthenia canalifera" = Wortheniella canalifera
"Worthenia canalifera" = Wortheniella canalifera Münster 1841 snail
 Neritoidea - Naticopsidae
Naticopsis expansa Laube 1868 snail
Crinoidea
 Isocrinida - Isocrinidae
Echinoidea
  -
"Cidaris" waechteri Wissmann 1841 sea urchin
"Cidaris" hausmanni Wissmann 1841 sea urchin