Cementos Andinos quarry (Cretaceous of Venezuela)

Also known as east of Lake Maracaibo, 10 km northeast of Monay

Where: Trujillo, Venezuela (9.3° N, 70.3° W: paleocoordinates 1.2° N, 46.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: La Aguada Member (La Luna Formation), Cenomanian (100.5 - 93.9 Ma)

• ~28 m above the base of the La Aguada Member

• bed-level stratigraphic resolution

Environment/lithology: marine; black shale

• Marine environment where laminated organic rich intervals suggest a deposition

•on the mid-shelf to upper continental slope under anoxic or poorly oxygenated conditions

• Black shale layer

Size class: macrofossils

Primary reference: A. Albino, J. D. Carrillo-BriceƱo, and J. M. Neenan. 2016. An enigmatic aquatic snake from the Cenomanian of Northern South America. PeerJ 4:e2027:1-26 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 176561: authorized by Pauline Coster, entered by Pauline Coster on 17.02.2016, edited by Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
  -
Bivalvia indet. Linnaeus 1758 clam
Chondrichthyes
 Galeomorphi -
Lamniformes indet. Berg 1958 mackerel shark
Actinopteri
 Salmoniformes - Enchodontidae
Enchodontidae indet. Woodward 1901
 Teleostei -
Ichthyodectiformes indet. Bardack and Sprinkle 1969
 Ichthyodectiformes - Ichthyodectidae
Xiphactinus audax Leidy 1870
Isolated and semi-articulated cranial and postcranial elements
Reptilia
 Squamata -
Lunaophis aquaticus n. gen. n. sp.
Lunaophis aquaticus n. gen. n. sp. Albino et al. 2016 snake
MNCN-1827 - holotype (vertebrae)