Perledo, Esino Valley, near Varenna (Lodovico Trotti collection) (Triassic of Italy)

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

Collected by Lodovico Trotti

• Repository: Private collection ("Gabinetto di minerali e fossili") of Ludovico Trotti in S. Teresa. Possibly later donated to Museo Civico di Milano (MCSNM), but much of it was destroyed during the Second World War.

Primary reference: G. Balsamo-Crivelli. 1839. Descrizione d'un nuovo rettile fossile della famiglia dei Paleosauri, e di due pesci fossili trovati nel calcareo nero, sopra Varenna sul lago di Como, dal nobile sig. Lodovico Trotti, con alcune riflessioni geologiche. Il Politecnico 1:421-431 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 153404: authorized by Matthew Clapham, entered by Matthew Clapham on 14.12.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Holostei -
Semionotiformes indet. Arambourg and Bertin 1958
Lepidotus trotti n. sp. Balsamo-Crivelli 1839
 Sauropterygia -
Sauropterygia indet. Owen 1861 diapsid