ammonites

Banke: Maastrichtian - Selandian, South Africa
collected by E. Reuning, L. D. Boonstra

Where & when
Geology
Taphonomy & methods
Metadata & references
Geography
Country:South Africa State/province:Namaqualand
Coordinates: 30.4° South, 18.4° East (view map)
Paleocoordinates:41.3° South, 5.3° East
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Key time interval:Maastrichtian - Selandian
Age range of interval:70.6 - 58.7 m.y. ago
Stratigraphy
Stratigraphy comments: "Late Cretaceous" according to Trueb et al., from "the end of the Cretaceous or perhaps early Tertiary" by Estes 1975 based on indirect evidence, and "60-70 Myr" based on 238Ub/206Pb dates for nearby volcanic pipes according to Geertsema and van den Heever 2000
Lithology and environment
Primary lithology: lithified carbonaceous mudstone
Lithology description: "carbonaceous mudstones" (Geertsema and van den Heever 2000)
Environment:crater lake
Geology comments: "crater-lake deposits... filling a volcanic pipe"
Taphonomy
Modes of preservation:body,adpression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Collectors:E. Reuning, L. D. Boonstra
Collection method comments: from a "shaft" sunk by Reuning and "dump material" from the shaft picked over by Boonstra
Metadata
Also known as:Gamoep
Database number:92114
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:J. Alroy Research group:vertebrate
Created:2009-11-01 10:36:14 Last modified:2009-11-01 10:36:29
Access level:the public Released:2009-11-01 10:36:14
Reference information
Primary reference:
15044ETE L. Trueb, C. F. Ross, and R. M. H. Smith. 2005. A new pipoid anuran from the Late Cretaceous of South Africa. Journal of Vertebrate Paleontology 25(3):533-547 [M. Carrano/K. Maguire/M. Carrano]

Secondary references:

31026 H. Geertsema and J. A. van den Heever. 2000. First record of a Late Cretaceous-Palaeocene tenebrinoid from Southern Africa. South African Journal of Science 96(11-12):553-555 [J. Alroy/J. Alroy]