Rubidgeines were large, quadrupedal carnivores of the family Gorgonopsidae. Their largest teeth are their upper canines, which were blade-like and had well-developed serrations. Their postcanine teeth were small and conical, but were also frequently serrated. Tooth replacement was rapid relative to basal therocephalians. Rubidgeines can be distinguished from other gorgonopsians by the absence of a blade-like parasphenoid bone and reduced or absent preparietal bone. The jugal bone, while narrow in most gorgonopsians, was often broadly expanded in rubidgeines.[1] The largest rubidgeins were Dinogorgon and Rubidgea.[2]
Rubidgeines were among the largest gorgonopsians known, and the largest known from Africa. They were also the largest predators in their environment. Their massive canines and serrated teeth indicate that they were adapted for macropredation.
The robust skull roof and supraorbital bosses of rubidgeines likely acted to protect the skull from the stress inflicted during prey capture, and similar morphology has been seen in many other macropredators in the fossil record, including theropoddinosaurs. The presence of this skull morphology is one of multiple adaptations seen in predators that utilize the skull, rather than the limbs, in prey capture.[1]
^ abcdChristian F., Kammerer (January 26, 2016). "Systematics of the Rubidgeinae (Therapsida: Gorgonopsia)". PeerJ. 4: e1608. doi:10.7717/peerj.1608. PMC4730894. PMID 26823998.
^Frank Zachos, Robert Asher (October 22, 2018). Mammalian Evolution, Diversity and Systematics. De Gruyter. p. 158. ISBN9783110341553. Retrieved 2022-08-25.
January 01, 1970
rubidgeinae, extinct, subfamily, gorgonopsid, therapsids, known, only, from, africa, they, were, among, largest, gorgonopsians, their, fossils, common, cistecephalus, daptocephalus, assemblage, zones, karoo, basin, they, lived, during, late, permian, became, e. Rubidgeinae is an extinct subfamily of gorgonopsid therapsids known only from Africa They were among the largest gorgonopsians and their fossils are common in the Cistecephalus and Daptocephalus assemblage zones of the Karoo Basin They lived during the Late Permian and became extinct at the end of the Permian 1 RubidgeinaeTemporal range Late Permian PreꞒ Ꞓ O S D C P T J K Pg N Visualized head of Rubidgea atrox Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Clade Synapsida Clade Therapsida Clade Gorgonopsia Family Gorgonopsidae Subfamily RubidgeinaeBroom 1938 Genera Aelurognathus Sycosaurus Ruhuhucerberus Rubidgeini Clelandina Dinogorgon Leontosaurus Rubidgea Contents 1 Description 2 Paleobiology 3 Classification and systematics 4 ReferencesDescription editRubidgeines were large quadrupedal carnivores of the family Gorgonopsidae Their largest teeth are their upper canines which were blade like and had well developed serrations Their postcanine teeth were small and conical but were also frequently serrated Tooth replacement was rapid relative to basal therocephalians Rubidgeines can be distinguished from other gorgonopsians by the absence of a blade like parasphenoid bone and reduced or absent preparietal bone The jugal bone while narrow in most gorgonopsians was often broadly expanded in rubidgeines 1 The largest rubidgeins were Dinogorgon and Rubidgea 2 Paleobiology edit nbsp Clelandina rubidgei Rubidgeines were among the largest gorgonopsians known and the largest known from Africa They were also the largest predators in their environment Their massive canines and serrated teeth indicate that they were adapted for macropredation The robust skull roof and supraorbital bosses of rubidgeines likely acted to protect the skull from the stress inflicted during prey capture and similar morphology has been seen in many other macropredators in the fossil record including theropod dinosaurs The presence of this skull morphology is one of multiple adaptations seen in predators that utilize the skull rather than the limbs in prey capture 1 Classification and systematics editBelow is a cladogram by Kammerer in 2016 1 Rubidgeinae Smilesaurus ferox Aelurognathus tigriceps Ruhuhucerberus haughtoni Sycosaurus laticeps Sycosaurus nowaki Rubidgeini Leontosaurus vanderhosti Dinogorgon rubidgei Rubidgea atrox Clelandina rubidgeiReferences edit a b c d Christian F Kammerer January 26 2016 Systematics of the Rubidgeinae Therapsida Gorgonopsia PeerJ 4 e1608 doi 10 7717 peerj 1608 PMC 4730894 PMID 26823998 Frank Zachos Robert Asher October 22 2018 Mammalian Evolution Diversity and Systematics De Gruyter p 158 ISBN 9783110341553 Retrieved 2022 08 25 Retrieved from https en wikipedia org w index php title Rubidgeinae amp oldid 1212057814, wikipedia, wiki, book, books, library,
