Immaturity vs paedomorphism: a rhinesuchid stereospondyl postcranium from the Upper Permian of South Africa

Simple item page
dc.contributor.authorPawley, Kat
dc.contributor.authorWarren, Anne
dc.date.accessioned2014-12-14T11:09:58Z
dc.date.available2014-12-14T11:09:58Z
dc.date.issued2004
dc.description.abstractThe postcranial skeleton of a medium-sized rhinesuchid from the Late Permian Dicynodon Assemblage Zone of South Africa is described. The well-preserved, articulated specimen consists of a partial skull, vertebral column and ribs, pectoral girdle, proximal limb elements, and ventral scales. Interesting features rarely preserved in stereospondyls include the extensive ventral scales and the pectinate anterior border of the interclavicle. SAM-PK-K10021 is of an average size for a rhinesuchid, but possesses a poorly ossified postcranial skeleton in comparison to larger rhinesuchid specimens. The scapulocoracoid lacks an ossified coracoid plate, the humerus lacks a supinator process, and the femur lacks a well-developed internal trochanter and adductor blade. Despite its relatively large size, SAM-PK-K10021 is an immature stage of a large rhinesuchid, thus contributing to our knowledge of the changes to the postcranial skeleton that occur during ontogeny. The assessment of heterochronic processes, especially paedomorphism, in the postcranial skeleton of temnospondyls, and the implications for cladistic analysis, are discussed.en_ZA
dc.identifier.issn0078-8554
dc.identifier.urihttp://hdl.handle.net/10539/15971
dc.language.isoenen_ZA
dc.publisherBERNARD PRICE INSTITUTE FOR PALAEONTOLOGICAL RESEARCHen_ZA
dc.titleImmaturity vs paedomorphism: a rhinesuchid stereospondyl postcranium from the Upper Permian of South Africaen_ZA
dc.typeArticleen_ZA
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
2004.v.40.PAWLEY_&_WARREN_Immaturity_vs_Paedomorphism.pdf
Size:
2.36 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Volume 40 December 2004