Sample debris 113-124 - 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. Debris sample: 113-124 m from the stake 1. Daxatina cf. canadense subzone, lower Carnian.

• group of beds-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 50956: authorized by Martin Aberhan, entered by Sabine Nürnberg on 25.05.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

• Bivalves, brachiopods and gastropods only.
Bivalvia
 Ostreida - Posidoniidae
""Posidonia" wengensis" = Bositra wengensis
""Posidonia" wengensis" = Bositra wengensis Wissmann 1841 oyster
Gastropoda
 Heterostropha - Anoptychiidae
Anoptychia supraplecta Münster 1841 snail
  -
 Murchisoniina - Zygopleuridae
"Goniogyra armata" = Goniospira armata
"Goniogyra armata" = Goniospira armata Münster 1841 snail
 Sorbeoconcha - Purpurinidae
? Purpurina sp. d'Orbigny 1850 periwinkle