Lombardian Alps, Sedrina Limestone Formation (Jurassic of Italy)

Where: Italy (46.0° N, 10.0° E: paleocoordinates 32.6° N, 14.2° E)

• coordinate estimated from map

• basin-level geographic resolution

When: Sedrina Limestone Formation, Hettangian (201.3 - 199.3 Ma)

• The Sedrina Limestone is transitional between the platform of the Conchodon Formation and the Moltrassio Formation deposited during Sinemurian time.

• formation-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone and lithified shale

• bedded limestone, shale and chert

Size class: macrofossils

Primary reference: C. A. McRoberts, C. R. Newton, and A. Allasinaz. 1995. End-triassic bivalve extinction: Lombardian alps, Italy. Historical Biology 9:297-317 [M. Aberhan/S. Nurnberg/S. Nurnberg]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 38170: authorized by Martin Aberhan, entered by Sabine N├╝rnberg on 17.04.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Arcida - Parallelodontidae
Parallelodon hettangiensis Terquem 1855 clam
 Pectinida - Entoliidae
 Pectinida - Dimyidae
Atreta intusstriata Emmrich 1853 scallop
 Pectinida - Pectinoidae
"Chlamys valoniensis" = Praechlamys valoniensis Defrance 1825 scallop
Pseudopecten dentatus Sowerby 1829 scallop
Pseudopecten cf. equivalvis Sowerby 1816 scallop
Chlamys textoria Schlotheim 1820 scallop
 Pectinida - Limidae
Plagiostoma punctatum Sowerby 1818 file clam
Plagiostoma giganteum Sowerby 1814 file clam
 Pectinida - Plicatulidae
? Plicatula spinosa Sowerby 1819 scallop
 Pectinida - Anomiidae
"Anomia striatula" = Placunopsis striatula Oppel 1856 scallop
 Ostreida - Gryphaeidae
 Ostreida - Ostreidae
 Ostreida - Pteriidae
Pteria deshayesi pearl oyster
 Ostreida - Bakevelliidae
 Ostreida - Pinnidae
 Mytilida - Mytilidae
 Carditida - Astartidae
 Carditida - Carditidae
 Carditida - Cardiniidae
 Protobranchia - Manzanellidae