Where: Italy (46.0° N, 9.3° E: paleocoordinates 8.9° N, 20.5° E)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Perledo Member (Perledo-Varenna Formation), Longobardian (242.0 - 235.0 Ma)
• The precise age of these historical fossil collections from Perledo cannot be determined unequivocally today because precise stratigraphic and locality data are lacking. Tintori et al. (1985) noted that most of the historical fossil material appears to have been collected in the surroundings of the village of Perledo (i.e. in the upper part of the Calcare di Perledo, recognized as the Perledo Member of the Perledo-Varenna Formation, of upper Ladinian age (Gaetani et al. 1992).
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified limestone
Size class: macrofossils
Preservation: adpression
Collection methods: Repository: Museo Civico di Milano (MCSM, e.g. Stoppani collection). Material described by Bellotti, but much of it was destroyed during the Second World War.
Primary reference: G. de Alessandri. 1910. Studii sui pesci Triasici della Lombardia. Memorie della Societa Italiana di Scienze Naturali e del Museo Civico di Storia Naturale di Milano 7(1):1-145 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 153401: authorized by Matthew Clapham, entered by Matthew Clapham on 14.12.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
| Osteichthyes | |
|
Semionotus balsami n. sp. Bellotti 1857 ray-finned fish Bellotti had several specimens, and additional "many specimens" (including one purchased 1874) in Alessandri, 1910 (which actually represent different species; Tintori & Lombardo, 2007)
Eugnathus hermesi n. sp. de Alessandri 1910 ray-finned fish coll. Enrico Vigoni 1868 (nomen nudum in Bellotti catalog)
Heterolepidotus taramellii n. sp. de Alessandri 1910 ray-finned fish determined as Semionotus intermis by Bellotti but not published
| |
"Belonorhynchus robustus" = Saurichthys macrocephalus
"Belonorhynchus robustus" = Saurichthys macrocephalus Deecke 1889 ray-finned fish MCSM 652, 866, 649, 867; listed as nomen nudum in Bellotti's 1873 catalog
| |
Ophiopsis lariensis n. sp.
| |
| Actinopteri | |
|
? Leptolepis sp. Agassiz 1832 | |
"Pholidophorus porro n. sp." = Prohalecites porroi
"Pholidophorus porro n. sp." = Prohalecites porroi Bellotti 1857 | |
|
Colobodus sp. Agassiz 1843 | |
"Lepidotus serratus n. sp." = Perleidus altolepis, "Pholidophorus oblongus n. sp." = Perleidus altolepis
"Lepidotus serratus n. sp." = Perleidus altolepis Deecke 1889
"Pholidophorus oblongus n. sp." = Perleidus altolepis Deecke 1889 Bellotti had a single specimen, but more acquired later from Stoppani and other colls (Alessandri, 1910)
| |
"Heterolepidotus bellottii" = Ctenognathichthys bellottii
"Heterolepidotus bellottii" = Ctenognathichthys bellottii de Alessandri 1910 | |
| Osteichthyes | |
Pholidophorus rueppelli n. sp., "Urolepis macroptera n. sp." = Aneurolepis macroptera, "Urolepis elongatus n. sp." = Aneurolepis macroptera, "Urolepis microlepidota n. sp." = Aneurolepis macroptera, Semionotus brevis n. sp., Pholidophorus lepturus n. sp., Lepidotus pectoralis n. sp.
Pholidophorus rueppelli n. sp. Bellotti 1857
"Urolepis elongatus n. sp." = Aneurolepis macroptera Bellotti 1857
"Urolepis microlepidota n. sp." = Aneurolepis macroptera Bellotti 1857 2 in MCSM Stoppani coll. (from Alessandri 1910)
Semionotus brevis n. sp. Bellotti 1857 counterpart in Stoppani collection, now at MCSM (fide Alessandri 1910)
Pholidophorus lepturus n. sp. Bellotti 1857
Lepidotus pectoralis n. sp. Bellotti 1857 One specimen in Bellotti, 1857 and additional examined by Bassani (coll. 1872, 1873)
| |
| Coelacanthimorpha | |
Heptanema paradoxum n. sp.
Heptanema paradoxum n. sp. Bellotti 1857 lobe-finned fish | |