Imperobator-type locality (Cretaceous of Antarctica)

Also known as UCMP Locality RV-9502, The Naze, James Ross Island

Where: Antarctica (64.0° S, 57.5° W: paleocoordinates 62.3° S, 68.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

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

• lower part of member

• bed-level stratigraphic resolution

Environment/lithology: marginal marine; lithified, massive, gray sandstone and lithified, green, yellow, argillaceous, silty mudstone

• This 91 m section is composed of interbedded, green gray massive and laminated fine-grained quartz sandstones and greenish yellow argillaceous mudstones and siltstones, with thin layers of concretions and bentonite clays dispersed through the section.

Size classes: macrofossils, mesofossils

Collection methods: surface (float),

Primary reference: R. C. Ely and J. A. Case. 2019. Phylogeny of a new gigantic paravian (Theropoda; Coelurosauria; Maniraptora) from the Upper Cretaceous of James Ross Island, Antarctica. Cretaceous Research 101:1-16 [G. Lloyd/G. Lloyd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 75458: authorized by Matthew Carrano, entered by Matthew Carrano on 10.10.2007, edited by Graeme Lloyd

Creative Commons license: CC BY (attribution)

Taxonomic list

 Avetheropoda -
Imperobator antarcticus n. gen. n. sp.
Imperobator antarcticus n. gen. n. sp. Ely and Case 2019 coelurosaur
limb materials; UCMP276000