Ciboa Marl (Oligocene of Puerto Rico)

Where: Puerto Rico (18.3° N, 66.3° W: paleocoordinates 17.5° N, 65.4° W)

• coordinate estimated from map

• basin-level geographic resolution

When: Ciboa Marl Formation (Guatemala Group), Late/Upper Oligocene (28.4 - 23.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Ciboa Marl of the Guatemala Gp, for which lithostratigraphic relationships are not reported. AGE: Late Oligocene in text. STRATIGRAPHIC POSITION: List representative of formation

• formation-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

• ENVIRONMENT: Shallow carbonate setting.
• SPECIFIC LITHOLOGY: Unknown. LITHIFICATION: Unknown.

Size class: macrofossils

Collection methods: surface (in situ),

• COLLECTOR: Unknown. REPOSITORY: Unknown

Primary reference: H. E. Vokes and E. H. Vokes. 1968. Variation in the genus Orthaulax (Mollusca: Gastropoda). Tulane Studies in Geology and Paleontology 6(2):71-84 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 92456: authorized by Austin Hendy, entered by Austin Hendy on 13.11.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: General list for Ciboa Marl, but limited to taxa described in taxonomic publications. NOMENCLATURE: Authoritative publication, with species-level nomenclature, and modern nomenclature.
Gastropoda
 Sorbeoconcha - Thersiteidae
Orthaulax conoides Woodring 1923 snail