Bentiaba, Bench 19 (Cretaceous of Angola)

Where: Namibe, Angola (14.3° S, 12.4° E: paleocoordinates 25.0° S, 1.7° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Mocuio Formation (São Nicolau Group), Early/Lower Maastrichtian (70.6 - 66.0 Ma)

• Bentiaba, Angola, Mocuio Formation; from the Bench 19 interval dated at approximately 71.5 Ma (Strganac et al., 2015a).

• bed-level stratigraphic resolution

Environment/lithology: marine; fine-grained, yellow sandstone

• fine dark yellow sandstone

Size class: macrofossils

• Aristonectinae bones:

•MGUAN PA85 (13 cervical and dorsal vertebrae with dorsal and pectoral ribs and a partial femur), MGUAN PA120 (one ischium, one femur, six autopodial elements and two sacral ribs), MGUAN PA248 (two autopodial elements, one phalanx, two partial coracoids, partial propodial, two neural arches and five cervical and one pectoral centra), MGUAN PA250 (two coracoids, two humeri, two vertebral centra and rib fragments)

Collected by Projecto PaleoAngola in 2007-2010

Collection methods: quarrying, surface (in situ),

• The specimens are temporarily housed in the Shuler Museum of Paleontology (SMU) and Museu da Lourinha (Portugal) but will be transferred to the Museu de Geologia da Universidade Agostinho Neto (MGUAN) collections at a later date.

Primary reference: R. Araujo, M. J. Polcyn, J. Lindgren, L. L. Jacobs, A. S. Schulp, O. Mateus, A. Olímpio Gonçalves and M.-L. Morais. 2015. New aristonectine elasmosaurid plesiosaur specimens from the Early Maastrichtian of Angola and comments on paedomorphism in plesiosaurs. Netherlands Journal of Geosciences —– Geologie en Mijnbouw 94(1):93-108 [E. Vlachos/F. Aspromonte]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 232402: authorized by Evangelos Vlachos, entered by Franco Aspromonte on 16.11.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Plesiosauria - Elasmosauridae
Aristonectinae indet. Otero et al. 2012 elasmosaur
MGUAN PA85 (13 cervical and dorsal vertebrae with dorsal and pectoral ribs and a partial femur), MGUAN PA120 (one ischium, one femur, six autopodial elements and two sacral ribs), MGUAN PA248 (two autopodial elements, one phalanx, two partial coracoids, partial propodial, two neural arches and five cervical and one pectoral centra), MGUAN PA250 (two coracoids, two humeri, two vertebral centra and rib fragments)