La Casilda, Rio Genoa Valley (Jurassic to of Argentina)

Where: Chubut, Argentina (44.3° S, 70.3° W: paleocoordinates 44.2° S, 27.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Mulanguiñeu Formation, Late/Upper Pliensbachian to Late/Upper Pliensbachian (189.6 - 182.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; mixed carbonate-siliciclastic sediments

Size class: macrofossils

Collection methods: Repository: Museo Paleontológico “Egidio Feruglio” collection (MPEF-PI), Trelew, Argentina

Primary reference: S. M. Ferrari and S. Bessone. 2015. A new Early Jurassic marine locality from southwestern Chubut Basin, Argentina . Andean Geology 42(3):349-363 [A. Dunhill/B. Allen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 204711: authorized by Alex Dunhill, entered by Bethany Allen on 18.09.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Cnidaria indet.
Cnidaria indet. Hatschek 1888
Anthozoa
 Scleractinia - Montlivaltiidae
? Montlivaltia sp.
? Montlivaltia sp. Lamouroux 1821 stony coral
Rhynchonellata
 Spiriferinida - Spiriferinidae
? Spiriferina sp.
? Spiriferina sp. d'Orbigny 1847
 Terebratulida - Zeilleriidae
? Zeilleria sp.
? Zeilleria sp. Bayle 1878
 Terebratulida - Terebratulidae
? Terebratula sp.
? Terebratula sp. Müller 1776
 Rhynchonellida - Tetrarhynchiidae
? Quadratirhynchia sp.
Gastropoda
 Pseudomelanoidea - Pseudomelaniidae
Pseudomelania sp.
Pseudomelania sp. Pictet and Campiche 1862 snail
 Sorbeoconcha - Procerithiidae
Procerithium (Infacerithium) cf. nodosum, Procerithium (Rhabdocolpus) patagoniensis
 Cerithioidea - Cryptaulacidae
Cryptaulax damboreneae
Cryptaulax damboreneae Ferrari 2009 snail
 Trochoidea - Trochidae
Lithotrochus humboldtii
Lithotrochus humboldtii von Buch 1839 top snail
Bivalvia
 Arcida - Cucullaeidae
? Cucullaea sp.
? Cucullaea sp. Lamarck 1801 clam
 Ostreida - Gryphaeidae
? Gryphaea sp.
? Gryphaea sp. Lamarck 1801 oyster
 Pectinida - Neitheoidae
Weyla (Weyla) bodenbenderi, Weyla (Weyla) alata
Weyla (Weyla) bodenbenderi Behrendsen 1891 scallop
Weyla (Weyla) alata von Buch 1838 scallop
 Pectinida - Entolioididae
Kolymonectes sp.
Kolymonectes sp. Bychkov et al. 1976 scallop
 Pectinida - Pectinoidae
Agerchlamys sp., Agerchlamys aff. wunschae, "Pseudopecten dentatus" = Pecten (Pecten) dentatus
Agerchlamys sp. Damborenea 1993 scallop
Agerchlamys aff. wunschae Marwick 1953 scallop
"Pseudopecten dentatus" = Pecten (Pecten) dentatus Sowerby 1829 scallop
 Pectinida - Limidae
Pseudolimea sp., Antiquilima sp.
Pseudolimea sp. Douglas and Arkell 1932 file clam
Antiquilima sp. Cox 1943 file clam
 Trigoniida - Myophorelloidae
Frenguelliella sp., Frenguelliella aff. inexspectata
Frenguelliella sp. Leanza 1942 clam
Echinoidea
  -
Echinoidea indet.
Echinoidea indet. Leske 1778 sea urchin