Quarry between Varenna and Regoledo, Perledo (SMF collection) (Triassic of Italy)

Where: Lecco, Italy (46.0° N, 9.3° E: paleocoordinates 8.8° N, 20.4° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Perledo Member (Perledo-Varenna Formation), Longobardian (242.0 - 235.0 Ma)

• Upper Ladinian (Rieppel 1994)

•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

Reposited in the SMF

Primary reference: T. Bürgin. 1990. Der Schuppenpanzer von Habroichthys minimus, einem ungewöhnlichen Strahlenflosser (Actinopterygii; Peltopleuriformes) aus der Mittleren Trias der Südalpen. Neues Jahrbuch für Geologie und Paläontologie, Monatshefte 1990(11):647-658 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 120901: authorized by Matthew Clapham, entered by Matthew Clapham on 23.11.2011, edited by Roger Benson

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
  -
"Heterolepidotus pectoralis" = Lepidotus pectoralis1
"Heterolepidotus pectoralis" = Lepidotus pectoralis1 Bellotti 1857
Rüppel collection
Actinopteri
 Saurichthyiformes - Saurichthyidae
"Belonorhynchus macrocephalus n. sp." = Saurichthys macrocephalus1
"Belonorhynchus macrocephalus n. sp." = Saurichthys macrocephalus1 Deecke 1889
four specimens and several fragments (perhaps University of Strasbourg)
 Perleidiformes - Habroichthyidae
 Perleidiformes - Perleididae
"Semionotus altolepis n. sp." = Perleidus altolepis1, "Pholidophorus oblongus" = Perleidus altolepis1, "Heterolepidotus serratus" = Perleidus altolepis1
"Semionotus altolepis n. sp." = Perleidus altolepis1 Deecke 1889
in SMF (fide Alessandri, 1910)
"Pholidophorus oblongus" = Perleidus altolepis1 Deecke 1889
Counterpart of Stoppani specimen, not Deecke's figured specimen
"Heterolepidotus serratus" = Perleidus altolepis1 Deecke 1889
Specimen figured by Deecke missing and not H. serratus according to Alessandri
 Pholidophoriformes - Pholidophoridae
Pholidophorus curionii1 Heckel 1849
Pholidophorus oblongus in Deecke, 1889 (pl 6, fig 6)
 Ionoscopiformes - Furidae
Archaeosemionotus connectens n. gen. n. sp.1 Deecke 1889
in SMF (fide Alessandri, 1910)
 Panxianichthyiformes - Panxianichthyidae
"Allolepidotus bellottii" = Allolepidotus bellottii2, "Allolepidotus nothosomoides n. sp." = Allolepidotus bellottii1
"Allolepidotus bellottii" = Allolepidotus bellottii2 Rueppell 1857
SM P1237, P1256, P1244, MB 7597
"Allolepidotus nothosomoides n. sp." = Allolepidotus bellottii1 Rueppell 1857
Osteichthyes
  -
"Ophiopsis lepturus" = Pholidophorus lepturus1, Ophiopsis lariensis1, "Allolepidotus rueppelli n. sp." = Pholidophorus rueppelli2
"Ophiopsis lepturus" = Pholidophorus lepturus1 Bellotti 1857
in SMF, collected by Rüppel around 1850 (fide Alessandri, 1910)
Ophiopsis lariensis1 de Alessandri 1910
in SMF collected by Rüppel around 1850 (labeled Semionotus balsami)
"Allolepidotus rueppelli n. sp." = Pholidophorus rueppelli2 Bellotti 1857
SM P1266
Reptilia
 Sauropterygia - Lariosauridae
Neusticosaurus pusillus4 Fraas 1881 nothosaur
 Sauropterygia - Nothosauridae
Lariosaurus sp.3 Curioni 1847 diapsid
Mandible SMF R-13 (Rieppel 1994, fig. 44A)
Lariosaurus balsami n. sp.4 Curioni 1841 diapsid