Dinosaurio River, Santa Marta Cove (Cretaceous to of Antarctica)

Also known as James Ross Island, Lakumasaurus antarcticus type locality

Where: Antarctica (63.9° S, 57.9° W: paleocoordinates 61.8° S, 68.5° W)

• coordinate stated in text

When: Gamma Member (Santa Marta Formation), Late/Upper Campanian to Late/Upper Campanian (83.5 - 66.0 Ma)

• upper part of Gamma Member

Environment/lithology: marginal marine; fine-grained sandstone

• "shallow marine"
• Indurated fine sandstone

Size class: macrofossils

Collected by J. M. Lirio in 2000

Collection methods: quarrying, mechanical,

Primary reference: F. E. Novas, M. Fernández, Z. B. Gasparini, J. M. Lirio, H. J. Nuñez and P. Puerta. 2002. Lakumasaurus antarcticus, n. gen. et sp., a new mosasaur (Reptilia, Squamata) from the Upper Cretaceous of Antarctica. Ameghiniana 39(2):245-249 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 115660: authorized by Philip Mannion, entered by Philip Mannion on 02.09.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

 Hexanchiformes - Hexanchidae
Notidanodon sp. Jordan and Hannibal 1923 cow shark
 Squamata - Mosasauridae
"Lakumasaurus antarcticus n. gen. n. sp." = Taniwhasaurus antarcticus
"Lakumasaurus antarcticus n. gen. n. sp." = Taniwhasaurus antarcticus Novas et al. 2002 mosasaur
IAA 2000-JR-FSM-1 - holotype (almost complete and articulated skull with jaws and teeth, rib fragments and isolated vertebrae