Where: Ticino, Switzerland (45.9° N, 8.9° E: paleocoordinates 7.0° N, 21.7° E)

• coordinate estimated from map

• small collection-level geographic resolution

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

• Or layer 76?

• bed-level stratigraphic resolution

Environment/lithology: marine; dolomite

Size class: macrofossils

Preservation: adpression

Collected by B. Peyer, PIMUZ in 1950-1968

Collection methods: quarrying,

• "Tessin collection" of the Palaontologisches Institut und Museum der Universitat Zurich (PIMUZ T. numbers), collected intensively from 1950-1968.

Primary reference: R. J. Mutter. 1998. Zur systematischen Stellungh einiger Bezahnugsreste von Acrodus georgii sp. nov. (Selachii, Hybodontoidea) aus der Grenzbitumenzone (Mittlere Trias) des Monte San Giorgio (Kanton Tessin, Schweiz). Eclogae Geologicae Helvetiae 91:513-519 [M. Clapham/P. Vazquez]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 44618: authorized by David Bottjer, entered by Matthew Clapham on 15.09.2004

Creative Commons license: CC BY (attribution)