Uliachin, Cerro de Pasco ("Myophorienkalk") (Triassic of Peru)

Where: Peru (10.7° S, 76.3° W: paleocoordinates 30.7° S, 44.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Ladinian (242.0 - 237.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: shelly/skeletal limestone

Size class: macrofossils

Primary reference: E. Jaworski. 1922. Die marine Trias in Süd-America. Neues Jahrbuch für Mineralogie, Geologie und Paläontologie 47(Supplement):93-200 [A. Dunhill/B. Allen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 206471: authorized by Alex Dunhill, entered by Bethany Allen on 18.11.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Nuculanida - Malletiidae
Phaenodesmia peruana Jaworski 1922 clam
 Trigoniida - Myophoriidae
"Myophoria cf. decussata" = Gruenewaldia decussata
"Myophoria cf. decussata" = Gruenewaldia decussata Munster 1838 clam
Gastropoda
 Neritoidea - Neritariidae
Trachynerita evoluta Jaworski 1922 snail
 Sorbeoconcha - Settsassiidae
Katosira sp. Koken 1892 snail
 Caenogastropoda - Coelostylinidae
Omphaloptycha aff. aldrovandii Stoppani 1857 snail
 Murchisoniina - Zygopleuridae
"Pseudoscalites subarmatus" = Andangularia subarmata
"Pseudoscalites subarmatus" = Andangularia subarmata Jaworski 1922 snail