Valle Stelle, Monte San Giorgio, Bed 144 (Triassic of Switzerland)

Where: Ticino, Switzerland (45.9° N, 9.0° E: paleocoordinates 7.0° N, 21.7° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Secedensis ammonoid zone, Grenzbitumenzone Member (Besano Formation), Illyrian (247.2 - 242.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; dolomite

Size class: macrofossils

Collection methods: surface (in situ),

Primary reference: P. Brack and H. Rieber. 1986. Stratigraphy and ammonoids of the lower Buchenstein Beds of the Brescian Prealps and Giudicarie and their significance for the Anisian/Ladinian Boundary. Eclogae Geologicae Helvetiae 79(1):181-225 [D. Bottjer/M. Clapham/M. Clapham]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 44630: authorized by David Bottjer, entered by Matthew Clapham on 15.09.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ceratitida - Ceratitidae
Chieseiceras chiesense Mojsisovics 1882 ceratite