Neptune Range area, Nelson Limestone Fm, 8 miles to the NE (Cambrian of Antarctica)

Where: Antarctica (83.8° S, 55.8° W: paleocoordinates 10.8° S, 152.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Nelson Limestone Formation, Guzhangian (500.5 - 497.0 Ma)

• in the lower part of the Nelson Limestone.

•late Middle Cambrian

Environment/lithology: shallow subtidal; limestone

• the Cambrian sequence begins with the Nelson Limestone, a unit 600 to 700 feet thick, which lies with angular miconf ormity 011 the Patuxent Formation. Overlying the Nelson Limestone conformably is the Gambacorta Formation, a unit of volcanic and hypabyssal rocks more than 1,000 feet thick.

•Trilobites from the basal beds of member 3.

Size classes: macrofossils, mesofossils

Primary reference: A. R. Palmer and C. G. Gatehouse. 1972. Early and Middle Cambrian Trilobites from Antarctica. Contributions to the geology of Antarctica [W. Kiessling/M. Krause]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 153968: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 21.01.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Asaphida - Anomocaridae
Chondranomocare australis
Chondranomocare australis Palmer and Gatehouse 1972 trilobite
 Corynexochida - Dorypygidae
Kootenia styrax
Kootenia styrax Palmer and Gatehouse 1972 trilobite
 Corynexochida - Dolichometopidae
Amphoton oatesi
Amphoton oatesi Palmer and Gatehouse 1972 trilobite
Artiopoda
 Agnostida - Peronopsidae
Peronopsis cf. fallax
Peronopsis cf. fallax Linnarsson 1869
Trinepea trinodus
  -
Trinepea trinodus
Trinepea trinodus Palmer and Gatehouse 1972