Quebrada Santa Rosita, Perijá foothills [Machiques Fm] (Cretaceous of Venezuela)

Where: Venezuela (10.0° N, 72.5° W: paleocoordinates 7.5° N, 41.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Machiques Formation, Aptian (125.0 - 113.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Machiques Fm, which regionally overlies the Tibu Fm (Aptian) and is overlain by the Piche Fm (Albian. AGE: Early to Late Aptian. STRATIGRAPHIC POSITION: From uppermost part of the formation.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified limestone

• SPECIFIC LITHOLOGY: Pelagic and biostromal limestone. LITHIFICATION: Lithified, on the basis of figured specimens.

Size class: macrofossils

Preservation: mold/impression

Collected by Renz; reposited in the NMB

Collection methods: surface (in situ),

• COLLECTOR: Presumably, Renz. REPOSITORY: Museum of Natural History, Basel.

Primary reference: O. Renz. 1982. The Cretaceous ammonites of Venezuela 1-132 [A. Hendy/A. Hendy/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 87909: authorized by Austin Hendy, entered by Austin Hendy on 27.03.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for ammonites. NOMENCLATURE: Authoritative publication, with modern nomenclature, and species-resolution identifications.
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Cephalopoda
 Ammonitida - Deshayesitidae
Deshayesites rotundatus, ? Deshayesites nodosus, Deshayesites columbianus
Deshayesites rotundatus Riedal 1938 ammonite
? Deshayesites nodosus Riedal 1938 ammonite
Deshayesites columbianus Riedal 1938 ammonite
 Ammonitida - Acanthohoplitidae
"Deshayesites stutzeri" = Neodeshayesites stutzeri
"Deshayesites stutzeri" = Neodeshayesites stutzeri Riedal 1938 ammonite