Permian and Triassic Therocephals (Eutherapsida) of Eastern Europe

@article{Ivakhnenko2011PermianAT,
  title={Permian and Triassic Therocephals (Eutherapsida) of Eastern Europe},
  author={Mf. Ivakhnenko},
  journal={Paleontological Journal},
  year={2011},
  volume={45},
  pages={981-1144}
}
  • M. Ivakhnenko
  • Published 29 November 2011
  • Geology
  • Paleontological Journal
Cranial morphology of Permian and Triassic Therocephalia of Eastern Europe is revised. The Therocephalia are regarded as an order of the subclass Eutherapsida of the class Theromorpha. Phylogenetic relationships are reconsidered and a tentative taxonomic scheme of the order is proposed. Biomorph evolution of East European Therocephalia from the Middle Permian to the Middle Triassic are discussed. 
A New Primitive Therocephalian (Theromorpha) from the Middle Permian of Eastern Europe
The largest East European scylacosaurid therocephalian Julognathus crudelis gen. et sp. nov. is described based on materials from the middle Permian locality of Sundyr-1, Mari El Republic, Russia.
Re-assessment of Silphoictidoides ruhuhuensis von Huene, 1950 (Therapsida, Therocephalia) from the Late Permian of Tanzania: one of the most basal baurioids known
TLDR
Contrary to recent claims Silphoictidoides represents a valid genus that is so far endemic to the Ruhuhu Basin and distinct from any described forms from the South African Karoo Basin, it is demonstrated that the genus is one of the most basal known representatives of the important therocephalian clade Baurioidea.
New data on synecology of Vyazniki terrestrial community (Terminal Permian, Central Russia)
TLDR
Interactions of the higher-rank consumers therocephals and early proterosuchid archosaurs were not restricted to competition for food resources, but also included preying of adult representatives of one taxon on juveniles of the other.
Patterns of changes in Theromorph taxa of Permian terrestrial communities of Eastern Europe
The evolution of Late Permian tetrapod communities which include Theromorpha is examined in the territory of Eastern Europe. It is noteworthy that changes in the taxonomic composition of analogous
Mammal-Like Reptiles
When the thecodonts (“socket-toothed”), the group thought to include the ancestral stock of all other archosaurs, including birds, dinosaurs, pterosaurs, and crocodiles, appeared on the evolutionary
Cranial morphology of Dvinia prima amalitzky (Cynodontia, Theromorpha)
TLDR
The study of the skull of the Late Permian cynodont Dvinia prima Amalitzky, 1922 shows a combination of the general primitive skull design with the development of a number of “advanced” features.
The First Karenitid (Therapsida, Therocephalia) from the Upper Permian of Gondwana and the Biogeography of Permo-Triassic Therocephalians
ABSTRACT Therocephalians were an ecologically diverse group of therapsids whose long stratigraphic record and widespread distribution during Permian and Triassic times make them important for
A new therocephalian (Gorynychus masyutinae gen. et sp. nov.) from the Permian Kotelnich locality, Kirov Region, Russia
TLDR
The identification of Gorynychus as the largest predator from Kotelnich indicates that therocephalians acted as apex predators in middle–late Permian transition ecosystems in Russia, corroborating a pattern observed in South African faunas.
Adult morphology of the therocephalian Simorhinella baini from the middle Permian of South Africa and the taxonomy, paleobiogeography, and temporal distribution of the Lycosuchidae
TLDR
The skull and partial skeleton of a large therocephalian from the uppermost Tapinocephalus Assemblage Zone of South Africa is described and forms the basis for a taxonomic re-evaluation of the Lycosuchidae as well as of the geographic and stratigraphic range of the family.
New whaitsioids (Therapsida: Therocephalia) from the Teekloof Formation of South Africa and therocephalian diversity during the end-Guadalupian extinction
TLDR
The oldest Gondwanan whaitsiid Microwhaitsia and additional records from the lower strata of the Teekloof Formation suggest thatWhaitsioids had diversified by the early Wuchiapingian and no later than Pristerognathus Assemblage Zone times, which imply increasing faunal turnover from Guadalupian to Lopingian (late Permian) times.
...
1
2
3
...

References

SHOWING 1-10 OF 83 REFERENCES
The first Whaitsiid (Therocephalia, Theromorpha) from the terminal Permian of eastern Europe
The first representative of the family Whaitsiidae, Megawhaitsia patrichae gen. et sp. nov., from the terminal Permian of eastern Europe is described. This is a very large predator that appeared in
Cranial morphology and evolution of Permian Dinomorpha (Eotherapsida) of eastern Europe
A Revision of the cranial morphology of Middle and Late Permian East European Dinomorpha (Theromorpha, Eotherapsida) resulted in a clarification of the taxonomic relationships within this group. As
The Faunal Assemblages of Permian Terrestrial Vertebrates from Eastern Europe
The scheme of the faunal assemblages of Permian terrestrial vertebrates from Eastern Europe is considered. The following faunal superassemblages are distinguished: (1) Eryopoidean Superassemblage,
THE OLDEST THEROCEPHALIANS (THERAPSIDA, EUTHERIODONTIA) AND THE EARLY DIVERSIFICATION OF THERAPSIDA
The oldest records of mammal-like therapsids in Laurasia are from the Ocher Complex of Russia and the Xid- agou Formation of China, whereas in Gondwana they are restricted to the Eodicynodon
Evolutionary Patterns Among Permo-Triassic Therapsids*
TLDR
Synapsids form the bulk of tetrapod diversity from Early Permian to Middle Triassic times and thus can provide critical information on the nature of the Permo-Triassic extinction in the terrestrial realm.
Eotherapsid hypothesis for the origin of Monotremata
TLDR
Comparative study of the cranial structures of mammals and theromorphs shows that Monotremata evolved from the eotherapsid stem of theROMorphs, while therian mammals are descendants of eutherapsids.
ON THE WHAITSIIDAE, A FAMILY OF THEROCEPHALIAN MAMMAL-LIKE REPTILES
TLDR
The distinctive characteristics of every genus and species belonging to, or related to, the family, Whaitsiidae, are described and attempts are made to illustrate their relationship in the form of a genealogical tree.
THE ORIGIN AND ADAPTIVE RADIATION OF MAMMAL‐LIKE REPTILES AND NONTHERIAN MAMMALS *
TLDR
In reviewing the course of evolution of the reptilian and early mammalian predecessors of the therian mammals, the principal adaptations (where known) of the basal members of each radiation are emphasized to indicate why they possessed the potential for giving rise to a major adaptive radiation.
Vyazniki biotic assemblage of the terminal Permian
A new unique and diverse biotic assemblage of the terminal Permian has recently been discovered in the town of Vyazniki (Central Russia). The Vyazniki terrestrial community is transitional between
REDESCRIPTION OF PLATYCRANIELLUS ELEGANS (THERAPSIDA, CYNODONTIA) FROM THE LOWER TRIASSIC OF SOUTH AFRICA, AND THE CLADISTIC RELATIONSHIPS OF EUTHERIODONTS
TLDR
A cladistic analysis of 32 taxa (two gorgonopsians, seven therocephalians and 23 cynodonts) and 96 craniodental characters places P. elegans as sister taxon of Eucynodontia, and indicates paraphyly for Therocephalia, with the whaitsiid Theriognathus identified as sisterTaxon of CynodontIA.
...
1
2
3
4
5
...