N end of La Borracha Island [Chimana Fm] (Cretaceous of Venezuela)

Where: Venezuela (10.3° N, 64.7° W: paleocoordinates 4.7° N, 36.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• STRATIGRAPHIC RELATIONS: From the Chimana Fm, which regionally overly the El Cantil Fm (Aptian) and is overlain by the Querecual Fm. AGE: Middle Albian; Hoplite dentatus zone. STRATIGRAPHIC POSITION: From shale zone above greensand, just below the Querecual Fm.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, glauconitic shale

• SPECIFIC LITHOLOGY: Glauconitic shale. LITHIFICATION: Lithified, on the basis of figured specimens.

Size class: macrofossils

Preservation: mold/impression

Collected by Guillaume

Collection methods: surface (in situ),

• COLLECTOR: H. Guillaume. REPOSITORY: Guillaume, Compania Shell de Venezuela.

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 87945: authorized by Austin Hendy, entered by Austin Hendy on 29.03.2009, edited by Pete Wagner and Briony Mamo

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for ammonites. NOMENCLATURE: Authoritative publication, with modern nomenclature, and species-resolution identifications.
Cephalopoda
 Ammonitida - Lyelliceratidae
Lyelliceras sp.1 Spath 1921 ammonite
Lyelliceras lyelli2 d'Orbigny 1841 ammonite
 Ammonitida - Desmoceratidae
Puzosia lata Seitz 1931 ammonite
Puzosia media Seitz 1931 ammonite
Puzosia quenstedti Parona and Bonarelli 1897 ammonite
Parasilesites kilianiformis Fallot 1910 ammonite
 Phylloceratida - Phylloceratidae
"Phylloceras (Hypophylloceras) tethys" = Euphylloceras thetys
"Phylloceras (Hypophylloceras) tethys" = Euphylloceras thetys d'Orbigny 1841 ammonite
SUBSPECIES: Phylloceras (Hypophylloceras) tethys majoricense