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 Nürnberg on 17.04.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Nuculanida - Nuculanidae
Nuculana borsoni pointed nut clam
Nuculana percaudata pointed nut clam
? Nuculana schiavi pointed nut clam
 Nuculida - Nuculidae
 Mytilida - Mytilidae
"Modiola" schafhaeutli Stur 1851 mussel
"Modiolus minutus" = Mytilus minutus Goldfuss 1837 mussel
 Ostreida - Gryphaeidae
 Ostreida - Ostreidae
Lopha haidingeriana Emmrich 1853 oyster
 Ostreida - Pteriidae
Rhaetavicula contorta Portlock 1843 pearl oyster
Pteria aviculoides pearl oyster
 Ostreida - Bakevelliidae
Gervillia inflata Schafhaeutl 1851 oyster
Bakevelloides praecursor Quenstedt 1858 oyster
[entered as Bakevilloides praecursor]
 Ostreida - Malleidae
"? Isognomon exilis" = Isognomon (Isognomon) exilis
"? Isognomon exilis" = Isognomon (Isognomon) exilis Stoppani 1857 oyster
 Ostreida - Cassianellidae
 Ostreida - Pinnidae
Pinna papyracea Stoppani 1857 oyster
 Pectinida - Limidae
Plagiostoma praecursor Quenstedt 1856 file clam
Plagiostoma punctatum Sowerby 1818 file clam
 Pectinida - Plicatulidae
Plicatula archiaci Stoppani 1865 scallop
 Pectinida - Pectinoidae
"Chlamys valoniensis" = Praechlamys valoniensis Defrance 1825 scallop
"Pseudopecten dentatus" = Pecten (Pecten) dentatus Sowerby 1829 scallop
Pseudopecten cf. equivalvis Sowerby 1816 scallop
 Pectinida - Dimyidae
Atreta intusstriata Emmrich 1853 scallop
 Pectinida - Propeamussiidae
 Pectinida - Entolioidesidae
"Entolium cf. hehlii" = Calvaentolium hehlii
"Entolium cf. hehlii" = Calvaentolium hehlii D'Orbigny 1870 scallop
 Arcida - Parallelodontidae
 Carditida - Myophoricardiidae
 Carditida - Cardiniidae
 Pholadomyida - Pholadomyidae
"Palaeocardita munita" = Pholadomya munita Stoppani 1857 clam
Homomya lariana Stoppani 1857 clam
 Pandorida - Laternulidae
 Cardiida - Palaeocarditidae
 Cardiida - Cardiidae
Protocardia rhaetica Merian 1853 cockle
"Cardium" soldani Stoppani 1865 cockle
 Cardiida - Anatinellidae
"Laternula zannonii" = Anatina zannoni
"Laternula zannonii" = Anatina zannoni Stoppani 1865 clam
 Cardiida - Arcticidae
 Megalodontida - Megalodontidae
 Pholadida - Corbulidae
? Corbula azzarolae Stoppani 1865 clam
 Lucinida - Lucinidae
 Trigoniida - Myophoriidae
Myophoria inflata Emmrich 1853 clam