Monolithic Lake, James Ross Island (Cretaceous of Antarctica)

Where: Antarctica (63.9° S, 57.9° W: paleocoordinates 61.7° S, 68.6° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Lachman Crags Member (Santa Marta Formation), Early/Lower Campanian (83.5 - 70.6 Ma)

• lower part of Beta Member (middle levels of Lachman Crags Member)

• bed-level stratigraphic resolution

Environment/lithology: offshore shelf; lithology not reported

• Mid-to-outer shelf environment

Size class: macrofossils

Collected in 2011; reposited in the MLP

Primary reference: J. P. O'Gorman. 2012. The oldest elasmosaurs (Sauropterygia, Plesiosauria) from Antarctica, Santa Marta Formation (upper Coniacian? Santonian-upper Campanian) and Snow Hill Island Formation (upper Campanian-lower Maastrichtian), James Ross Island. Polar Research 31(11090):1-10 [P. Mannion/P. Mannion/P. Mannion]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 140270: authorized by Philip Mannion, entered by Philip Mannion on 06.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Sauropterygia - Elasmosauridae
Elasmosauridae indet. Cope 1869 elasmosaur
MLP 11-II-20-4 (one cervical vertebra preserving a partial rib)