Cape Lamb (230 m) (Cretaceous of Antarctica)

Where: Antarctica (63.9° S, 57.6° W: paleocoordinates 62.2° S, 68.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Cape Lamb Member (Snow Hill Island Formation), Early/Lower Maastrichtian (70.6 - 66.0 Ma)

• The specimen MLP 15-I-7-6 comes from the Ammonite Assemblage 10 sensu Olivero and Medina (2000) and Olivero (2012), and is early Maastrichtian in age (Olivero and Medina, 2000; Crame et al., 2004; Olivero, 2012).

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified mudstone

• The Cape Lamb Member of the Snow Hill Island Formation consists of 319 m of heavily bioturbated silty mudstones to silty sandstones with abundant diagenetic concretions

Size class: macrofossils

• MLP 15-I-7-6, partial skull comprising caudal half of pterygoids, basisphenoid, basioccipital, squamosal, exoccipitalopisthotic; cervical, dorsal, sacral and caudal centra; cervical and dorsal ribs, partially preserved coracoid, two partially preserved propodials

Collected by J. P. O'Gorman, R. A. Coria, M. Reguero, S. Santillana, T. Mors, M. Cardenas in 2015

Collection methods: quarrying, mechanical,

Primary reference: J. P. O'Gorman, R. A. Coria, M. Reguero, S. Santillana, T. Mors and M. Cardenas. 2018. The first non-aristonectine elasmosaurid (Sauropterygia; Plesiosauria) cranial material from Antarctica: New data on the evolution of the elasmosaurid basicranium and palate. Cretaceous Research 89:248-263 [E. Vlachos/F. Aspromonte]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 232341: 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
Weddellonectia indet.
Weddellonectia indet. O'Gorman and Coria 2017 elasmosaur
MLP 15-I-7-6, partial skull comprising caudal half of pterygoids, basisphenoid, basioccipital, squamosal, exoccipitalopisthotic (Figs. 3, 4); cervical, dorsal, sacral and caudal centra; cervical and dorsal ribs, partially preserved coracoid, two partially preserved propodials