Lombardian Alps, Riva di Solto Formation (Triassic of Italy)

Where: Italy (46.0° N, 10.0° E: paleocoordinates 30.7° N, 14.2° E)

• coordinate estimated from map

• basin-level geographic resolution

When: Riva di Solto Formation, Rhaetian (208.5 - 201.3 Ma)

• The Riva di Solto Formation is assigned to be lower Rhaetian, some workers believe that at least the lower parts of the formation may be uppermost Norian in age.

• formation-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified shale and lithified limestone

• shales and thin-bedded limestone

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 38167: authorized by Martin Aberhan, entered by Sabine N├╝rnberg on 17.04.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Arcida - Parallelodontidae
 Pectinida - Propeamussiidae
 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
 Pectinida - Limidae
Plagiostoma punctatum Sowerby 1818 file clam
 Pectinida - Plicatulidae
 Ostreida - Gryphaeidae
 Ostreida - Ostreidae
 Ostreida - Cassianellidae
 Ostreida - Pteriidae
Pteria aviculoides pearl oyster
Rhaetavicula contorta Portlock 1843 pearl oyster
 Ostreida - Malleidae
 Ostreida - Bakevelliidae
Bakevelloides praecursor Quenstedt 1858 oyster
[entered as Bakevilloides praecursor]
 Ostreida - Pinnidae
 Mytilida - Mytilidae
"Modiolus productus" = Modiolus, "Modiolus ervensis" = Modiolus, "Modiolus minutus" = Modiolus, ""Modiola" schafhaeutli" = Modiolus, "? Modiolus adrarae" = Modiolus
"Modiolus productus" = Modiolus mussel
"Modiolus ervensis" = Modiolus mussel
"Modiolus minutus" = Modiolus mussel
""Modiola" schafhaeutli" = Modiolus mussel
"? Modiolus adrarae" = Modiolus mussel
 Carditida - Myophoricardiidae
 Carditida - Cardiniidae
 Pholadida - Corbulidae
 Megalodontida - Megalodontidae
 Cardiida - Arcticidae
 Cardiida - Palaeocarditidae
 Cardiida - Cardiidae
"Cardium" soldani Stoppani 1863 cockle
Protocardia rhaetica Merian 1853 cockle
 Pandorida - Laternulidae
 Pholadomyida - Pholadomyidae
 Lucinida - Lucinidae
 Trigoniida - Myophoriidae
 Nuculida - Nuculidae
 Protobranchia - Nuculanidae
Nuculana borsoni pointed nut clam
Nuculana percaudata pointed nut clam
? Nuculana schiavi pointed nut clam