San Sebastian crocodylomorphs (Oligocene of Puerto Rico)

Where: Puerto Rico (18.4° N, 67.2° W: paleocoordinates 17.5° N, 66.3° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: San Sebastian Formation, Oligocene (33.9 - 23.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marginal marine; lithology not reported

• noncarbonate nearshore facies

Size class: macrofossils

Reposited in the AMNH

Primary reference: C. A. Brochu, A. M. Nieves-Rivera, J. VĂ©lez-Juarbe, J. D. Daza-Vaca, and H. Santos. 2007. Tertiary crocodylians from Puerto Rico: Evidence for Late Tertiary endemic crocodylians in the West Indies?. Geobios 40:51-59 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 144645: authorized by Philip Mannion, entered by Philip Mannion on 14.05.2013, edited by Evangelos Vlachos

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Testudines - Pelomedusidae
Pelomedusidae indet. Cope 1868 sideneck turtle
AMNH 1836, partial shell
 Loricata -
Crocodyliformes indet. Hay 1930 crocodilian
RC 238, RC 1579, RC 1584, RC 1585, RC 1615, RC 1616, RC 2912, teeth; UPRMP 372, UPRMP 2824, teeth
 Crocodylia -
Crocodylia indet. Owen 1842 crocodilian
AMNH 24484, AMNH 24485, teeth; AMNH 24487, two dorsal osteoderms; AMNH 24488, left quadrate ramus; AMNH 24489, four partial vertebrae; AMNH 24558, fragmentary?anterior sacral vertebra