Seymour Island (9238) (Cretaceous of Antarctica)

Also known as Plesiosaur locality

Where: Antarctica (64.3° S, 56.7° W: paleocoordinates 62.6° S, 67.3° W)

• coordinate estimated from map

When: López de Bertodano Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• Seymour (Marambio) Island,Antarctica. Higher, ‘molluscan’ units (Klb 9) of the López

•de Bertodano Formation, upper Maastrichtian (Olivero, 2012).

Environment/lithology: marine; poorly lithified, concretionary, sandy siltstone and lithified carbonate

• part of nearshore marine and coastal-deltaic series within transgressive-regressive cycle
• loosely consolidated sandy siltstones intercalated with calcareous concretions and that is all it says

Size class: macrofossils

• TTU P 9238: includes part of cervicals, rib fragments, isolated paddles, and gaslroliths.

Preservation: concretion

Collected in 1981-1985

Collection methods: quarrying, chemical, mechanical,

• TTU P , Museum of Texas Tech University, Texas, USA;

Primary reference: S. Chatterjee and B. J. Small. 1989. New plesiosaurs from the Upper Cretaceous of Antarctica. Origin and Evolution of the Antarctic Biota, Geological Society Special Publication 47:197-215 [R. O'Keefe/R. O'Keefe/F. Aspromonte]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 232351: authorized by Evangelos Vlachos, entered by Franco Aspromonte on 09.11.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Plesiosauria - Elasmosauridae
Elasmosauridae indet.
Elasmosauridae indet. Cope 1869 elasmosaur
TTU P 9238; part of cervicals, rib fragments, isolated paddles, and gastroliths