Bed 04, BaƱos del Inca [Inca Fm] (Cretaceous of Peru)

Where: Cajamarca, Peru (7.2° S, 78.5° W: paleocoordinates 11.4° S, 49.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Neodeshayesites nicholsoni ammonoid zone, Inca Formation, Early/Lower Albian (112.0 - 109.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Inca Fm, which locally overlies the Farrat Fm. AGE: Early Albian, on the basis of ammonite biostratigraphy; Neodeshayesites nicholsoni zone. STRATIGRAPHIC POSITION: From sample 04, in lower part of section.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, argillaceous marl

• SPECIFIC LITHOLOGY: Clayey marl. LITHIFICATION: Lithified, on the basis of figured specimens.

Size class: macrofossils

Preservation: mold/impression

Collected by Robert

Collection methods: surface (float),

• COLLECTOR: E. Robert, 1995-1999. REPOSITORY: ISEM

Primary reference: E. Robert and L. G. Bulot. 2005. Albian ammonite faunas from Peru: The genus Neodeshaesites Casey, 1964. Journal of Paleontology 79(3):611-618 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 88520: authorized by Austin Hendy, entered by Austin Hendy on 13.04.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for ammonoidea. NOMENCLATURE: Authoritative publication, with modern nomenclature and species-resolution identification.
 Ammonitida - Beudanticeratidae
 Ammonitida - Desmoceratidae
Desmoceras sp., ""Beudanticeras" cf. dupinianum" = Roberticeras dupinianum
Desmoceras sp. Zittel 1884 ammonite
""Beudanticeras" cf. dupinianum" = Roberticeras dupinianum d'Orbigny 1841 ammonite
 Ammonitida - Douvilleiceratidae
Douvilleiceras offarcinatum White 1887 ammonite
 Ammonitida - Acanthohoplitidae
Neodeshayesites sp. Casey 1964 ammonite
Neodeshayesites nicholsoni Benavides-Caceres 1956 ammonite