Volume 34 1997

Permanent URI for this collection

https://wiredspace.wits.ac.za/handle/10539/15937

Browse

Browsing Volume 34 1997 by Author "Gow, Chris E."

Now showing 1 - 4 of 4
  • Thumbnail Image
    Item
    First record of Eunotosaurus (Amniota: Parareptilia) from the Eastern Cape.
    (Bernard Price Institute for Palaeontological Research, 1997) Gow, Chris E.; de Klerk, Billy
    Eunotosaurus is a rare tetrapod fossil until recently known only from the Tapinocephaluszone of the main Karoo basin of Cape Province. A single specimen has recently been collected in the Free State (Weiman, pers. com.). This paper describes a new find from the Eastern Cape, where outcrops of Karoo rocks are scarce. The new specimen adds previously unknown morphological detail, particularly about the limbs. Phylogenetic affinities are clearly with the Parareptilia. particularly about the limbs. Phy logene tic affinities are clearly with the Parareptilia.
  • Thumbnail Image
    Item
    A note on the postcranial skeleton of Milleretta (Amniota: Parareptilia).
    (Bernard Price Institute for Palaeontological Research, 1997) Gow, Chris E.
    This description of a partial postcranial skeleton of a mature individual of Milleretta rubidgei shows that it has very broad (laterally expanded) ribs, and growth of limb bones had ceased. Previously the only described postcranial skeleton was that of a young individual in which the ribs are not as broad and the ends of the limb bones were still formed of cartilage.
  • Thumbnail Image
    Item
    The oldest Procolophonoid (Amniota: Parareptilia) - New discovery from the lower Beaufort of South Africa.
    (Bernard Price Institute for Palaeontological Research, 1997) Gow, Chris E.; Rubidge, Bruce S.
    Until now the earliest recognised procolophonoid (sensu Laurin & Reisz 1995) reptile has been Owenetta, which ranges from the Cistecephalus assemblage zone (Upper Permian) to the Lystrosaurus assemblage zone (Lower Triassic) of the Beaufort Group of South Africa. This paper records the presence of a new even older form from low in the underlying Tapinocephalus assemblage zone.
  • Thumbnail Image
    Item
    A reassessment of Eunotosaurus africanus Seeley (Amniota: Parareptilia).
    (Bernard Price Institute for Palaeontological Research, 1997) Gow, Chris E.
    This paper provides an almost complete description of the Permian fossil reptile Eunotosaurus for the first time. Taphonomy indicates that these were terrestrial animals; dentition suggests that they preyed on small invertebrates; while the broad, imbricating ribs point to a slow moving animal with a protective, turtle-like carapace. Temporal emargination and the fan-like iliac blade serve to align these animals with Parareptilia, sensu Laurin and Reisz ( 1995). Eunorosaurusand millerettids are sister taxa on the basis of s tapes and rib morphology, and together they constitute the sister taxon to Ankyramopha (Debraga and Reisz 1996), having eight characters in which they are less derived than the latter.