Rogno Valley, bed 3 (Triassic of Italy)

Where: Lombardy, Italy (45.9° N, 9.9° E: paleocoordinates 12.7° N, 18.5° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Gorno Formation, Julian (235.0 - 232.0 Ma)

• 12 m thick

• bed-level stratigraphic resolution

Environment/lithology: lagoonal or restricted shallow subtidal; lithified marl and lithified, sandy limestone

• shallow, low energy, well-oxygenated lagoon with mixed calcareous–terrigenous sedimentation, interposed between deltas and carbonate platforms (Gnaccolini and Jadoul 1988)

Size class: macrofossils

Primary reference: A. Allasinaz. 1966. Il Trias in Lombardia, 18: La fauna a lamellibranchi dello Julico (Carnico medio) [The Triassic in Lombardy, 18: Julian (Middle Carnian) bivalves]. Rivista Italiana di Paleontologia e Stratigrafia 72(3):609-752 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 85240: authorized by Wolfgang Kiessling, entered by Uta Merkel on 08.12.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Trigoniida - Trigonodidae
Trigonodus bittneri, Trigonodus problematicus, Trigonodus carniolicus
Trigonodus bittneri Waagen 1907 clam
Trigonodus problematicus Klipstein 1843 clam
Trigonodus carniolicus Bittner 1907 clam
 Trigoniida - Myophoriidae
Heminajas cf. woehrmanni, Heminajas fissidentata, Heminajas geyeri
Heminajas cf. woehrmanni Waagen 1907 clam
Heminajas fissidentata von Wöhrmann 1889 clam
Heminajas geyeri Waagen 1907 clam