Cassina, bed 32 (Triassic of Switzerland)

Where: Switzerland (45.9° N, 8.9° E: paleocoordinates 8.8° N, 20.1° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Cassina Formation, Fassanian (242.0 - 235.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: basinal (); lithified, carbonaceous lime mudstone

• Bottom of a basin below wave base and adjacent to a shallow-water carbonate platform from which a recurrent carbonate supply reached the basin floor, contributing to the sediment lamination. Vertebrate assemblages and the lack of stenohaline invertebrates point to an environment with limited connection to the open sea. Episodic, short-lived depositional events occur randomly and are related to sediment input from basin margins (turbidite lithofacies) and to volcanic activity (tephra lithofacies).

Size class: macrofossils

Preservation: adpression

Collected in 2006

Collection methods: quarrying,

• Repository: Museo Cantonale di Storia Naturale (Lugano)

Primary reference: A. López-Arbarello, T. Bürgin, H. Furrer and R. Stockar. 2016. New holostean fishes (Actinopterygii: Neopterygii) from the Middle Triassic of the Monte San Giorgio (Canton Ticino, Switzerland). PeerJ 4(e2234):1-61 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 180495: authorized by Matthew Clapham, entered by Matthew Clapham on 20.07.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Actinopteri
 Holostei -
Ticinolepis longaeva
Ticinolepis longaeva López-Arbarello et al. 2016
Osteichthyes
 Ionoscopiformes - Subortichthyidae
Eoeugnathus sp.
Eoeugnathus sp. Brough 1939 ray-finned fish
 Saurichthyiformes - Saurichthyidae
Saurichthys spp.
Saurichthys spp. Agassiz 1834 ray-finned fish