Taxonomic status of the reptile genus Procolophon from the Gondwanan Triassic
The specific composition of the genus Procolophon in Brazil, South Africa and Antarctica is discussed in the light of new data. It is found that P. pricei and P. brasiliensis, two species described from Brazil, fit within the pattern of ontogenetic variation of the type species P. trigoniceps, and t...
Main Author: | |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Bernard Price Institute for Palaeontological Research, University of the Witwatersrand
2008
|
Subjects: | |
Online Access: | http://hdl.handle.net10539/13805 |
id |
ftunivwitwaters:oai:wiredspace.wits.ac.za:10539/13805 |
---|---|
record_format |
openpolar |
spelling |
ftunivwitwaters:oai:wiredspace.wits.ac.za:10539/13805 2023-05-15T13:58:45+02:00 Taxonomic status of the reptile genus Procolophon from the Gondwanan Triassic Cisneros, Juan Carlos 2008-04 application/pdf http://hdl.handle.net10539/13805 en eng Bernard Price Institute for Palaeontological Research, University of the Witwatersrand 0078-8554 http://hdl.handle.net10539/13805 Procolophonidae Procolophon temporal fenestrae Triassic Gondwana Article 2008 ftunivwitwaters 2019-08-12T15:37:36Z The specific composition of the genus Procolophon in Brazil, South Africa and Antarctica is discussed in the light of new data. It is found that P. pricei and P. brasiliensis, two species described from Brazil, fit within the pattern of ontogenetic variation of the type species P. trigoniceps, and they are here considered junior synonyms. The South African species P. laticeps, characterized by the presence of a temporal fenestra, is no longer considered valid. The peculiar temporal openings of this species are regarded here as an anomalous condition without taxonomic significance. The only complete skull known from Antarctica shows a unique feature consisting of an elliptical depression in the palate. The interpretation of this structure is ambiguous because it may also be attributable to individual variation, and this specimen is provisionally kept within P. trigoniceps. Therefore, only the type species, P. trigoniceps, is recognized in Gondwana. This species occupies a wide geographic range, from the ParanĂ¡ Basin to the Transantarctic Mountains. Article in Journal/Newspaper Antarc* Antarctica University of the Witwatersrand, Johannesburg: WITS Institutional Repository on DSpace (WIReDSpace) Transantarctic Mountains |
institution |
Open Polar |
collection |
University of the Witwatersrand, Johannesburg: WITS Institutional Repository on DSpace (WIReDSpace) |
op_collection_id |
ftunivwitwaters |
language |
English |
topic |
Procolophonidae Procolophon temporal fenestrae Triassic Gondwana |
spellingShingle |
Procolophonidae Procolophon temporal fenestrae Triassic Gondwana Cisneros, Juan Carlos Taxonomic status of the reptile genus Procolophon from the Gondwanan Triassic |
topic_facet |
Procolophonidae Procolophon temporal fenestrae Triassic Gondwana |
description |
The specific composition of the genus Procolophon in Brazil, South Africa and Antarctica is discussed in the light of new data. It is found that P. pricei and P. brasiliensis, two species described from Brazil, fit within the pattern of ontogenetic variation of the type species P. trigoniceps, and they are here considered junior synonyms. The South African species P. laticeps, characterized by the presence of a temporal fenestra, is no longer considered valid. The peculiar temporal openings of this species are regarded here as an anomalous condition without taxonomic significance. The only complete skull known from Antarctica shows a unique feature consisting of an elliptical depression in the palate. The interpretation of this structure is ambiguous because it may also be attributable to individual variation, and this specimen is provisionally kept within P. trigoniceps. Therefore, only the type species, P. trigoniceps, is recognized in Gondwana. This species occupies a wide geographic range, from the ParanĂ¡ Basin to the Transantarctic Mountains. |
format |
Article in Journal/Newspaper |
author |
Cisneros, Juan Carlos |
author_facet |
Cisneros, Juan Carlos |
author_sort |
Cisneros, Juan Carlos |
title |
Taxonomic status of the reptile genus Procolophon from the Gondwanan Triassic |
title_short |
Taxonomic status of the reptile genus Procolophon from the Gondwanan Triassic |
title_full |
Taxonomic status of the reptile genus Procolophon from the Gondwanan Triassic |
title_fullStr |
Taxonomic status of the reptile genus Procolophon from the Gondwanan Triassic |
title_full_unstemmed |
Taxonomic status of the reptile genus Procolophon from the Gondwanan Triassic |
title_sort |
taxonomic status of the reptile genus procolophon from the gondwanan triassic |
publisher |
Bernard Price Institute for Palaeontological Research, University of the Witwatersrand |
publishDate |
2008 |
url |
http://hdl.handle.net10539/13805 |
geographic |
Transantarctic Mountains |
geographic_facet |
Transantarctic Mountains |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
0078-8554 http://hdl.handle.net10539/13805 |
_version_ |
1766267086650212352 |