Sample URL1b - Prati di Stuores/Stuores Wiesen Section, Dolomites (Triassic of Italy)

Where: Italy (46.5° N, 11.4° E: paleocoordinates 12.6° N, 19.8° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Lower Member (San Cassiano Formation), Julian (235.0 - 232.0 Ma)

• The lower member ("Untere Cassianer Schichten", UCS) overlies the La Valle Formation. Sample URL1b: at the base of section 2. Aon subzone, lower Carnian.

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal; lithified mixed carbonate-siliciclastic sediments

• Alternations of siliciclastic and carbonate turbidites, deposited in a relatively deep basin, absence of unconformities and a gradual upward increase in sedimentation rate and carbonate content. No sudden or significant facies change in the entire section.
• The lower member consists of alternating siltstones, claystones, calcarenites marly limestones and turbidity vulcanoarenites.

Size class: macrofossils

Primary reference: C. Broglio Loriga, S. Cirilli, V. Zanche, D. Bari, P. Gianolla, G. F. Laghi, W. Lowrie, S. Manfrin, A. Mastandrea, P. Mietto, G. Muttoni, C. Neri, R. Posenato, M. Rechichi, R. Rettori and G. Roghi. 1999. The Prati di Stuores/Stuores Wiesen Section (Dolomites, Italy): a candidate Global Stratotype Section and Point for the base of the Carnian stage. Rivista Italiana di Paleontologia e Stratigrafia 105(1):37-78 [M. Aberhan/S. Nurnberg/S. Nurnberg]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 50873: authorized by Martin Aberhan, entered by Sabine Nürnberg on 24.05.2005, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

• Ammonoids only.
 Ceratitida - Arcestidae
Proarcestes bicarinatus Münster 1841 ceratite
 Ceratitida - Joannitidae
Joannites klipsteini von Mojsisovics 1875 ceratite
 Ceratitida - Lobitidae
Paralobites spp. von Mojsisovics 1902 ceratite
Lobites ellipticoides Laube 1869 ceratite
 Ceratitida - Trachyceratidae
Trachyceras dichotomum Münster 1841 ceratite
Trachyceras aon Munster 1834 ceratite
Klipsteinia achelous Munster 1834 ceratite
Daxatina cf. laubei Tozer 1994 ceratite
 Ceratitida - Lecanitidae
Lecanites glaucus Munster 1834 ceratite