Bed 14, Pariahuanca section (Cretaceous of Peru)

Where: Peru (9.4° S, 77.6° W: paleocoordinates 14.9° S, 49.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pariatambo Formation, Middle Albian (109.0 - 105.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, concretionary, gray, argillaceous, carbonaceous marl

• Limestone, bituminous, dark gray, fossiliferous, interbedded with shaly, bituminous marl which contains abundant spherical concretions of fossiliferous

Size class: macrofossils

Reposited in the AMNH

Collection methods: surface (in situ),

• COLLECTOR: V. E. Benavides. REPOSITORY: AMNH.

Primary reference: V.E. Benavides-Caceres. 1956. Cretaceous system in northern Peru. Bulletin of the American Museum of Natural History 108(4):1-493 [A. Miller/A. Hendy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 88174: authorized by Austin Hendy, entered by Austin Hendy on 02.04.2009, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for ammonoids, bivalves, and other invertebrates groups. NOMENCLATURE: Authoritative publication, but with somewhat antiquated nomenclature, and species-resolution identifications.
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Bivalvia
 Myalinida - Inoceramidae
Inoceramus sp.
Inoceramus sp. Sowerby 1814 clam
Cephalopoda
 Ammonitida - Desmoceratidae
"Desmoceras latidorsatum" = Desmoceras (Desmoceras) latidorsatum
"Desmoceras latidorsatum" = Desmoceras (Desmoceras) latidorsatum Michelin 1838 ammonite
 Ammonitida - Mojsisovicsiidae
Oxytropidoceras carbonarium, "Oxytropidoceras douglasi" = Mirapelia buarquianum
Oxytropidoceras carbonarium Gabb 1877 ammonite
"Oxytropidoceras douglasi" = Mirapelia buarquianum White 1887 ammonite
 Ammonitida - Lyelliceratidae
"Brancoceras aegoceratoides" = Eubrancoceras aegoceratoides, Lyelliceras lyelli
"Brancoceras aegoceratoides" = Eubrancoceras aegoceratoides Steinmann 1881 ammonite
Lyelliceras lyelli d'Orbigny 1841 ammonite
 Ammonitida - Prolyelliceratidae
"Lyelliceras ulrichi" = Prolyelliceras ulrichi
"Lyelliceras ulrichi" = Prolyelliceras ulrichi Knechtel 1947 ammonite