Kannemeyeria (Redirected from Kannemeyeriidae)

Kannemeyeria
Temporal range: Anisian
~247–242 Ma
Skull of Kannemeyeria simocephalus
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Synapsida
Clade: Therapsida
Suborder: Anomodontia
Clade: Dicynodontia
Family: Kannemeyeriidae
Genus: Kannemeyeria
Seeley, 1908
Type species
Dicynodon simocephalus
Weithofer, 1888
Species
  • K. aganosteus Kammerer & Ordoñez, 2021
  • K. lophorhinus Renaut et al., 2003
  • K. simocephalus (Weithofer, 1888)
Synonyms
Genus Synonymy
Species Synonymy
  • Dicynodon latifrons Broom, 1889
  • Kannemeyeria erithrea Haughton, 1915
  • Kannemeyeria proboscoides Seeley, 1909
  • Kannemeyeria wilsoni Cruickshank, 1970
  • Proplacerias vanhoepeni Camp, 1956
  • Ptychocynodon pentangulatus Seeley, 1904
  • Sagecephalus pachyrhynchus Jaekel, 1911

Kannemeyeria is a genus of dicynodont that lived during the Anisian age of Middle Triassic period in what is now Africa and South America. The generic name is given in honor of Daniel Rossouw Kannemeyer, the South African fossil collector who discovered the original specimen. It is one of the first representatives of the family, and hence one of the first large herbivores of the Triassic.

Description

Restoration of Kannemeyeria

Kannemeyeria was about 3 metres (9.8 ft) in length, about the size of an ox. Although it had a large head, it was lightweight due to the size of the eye sockets and nasal cavity. It also had limb girdles which formed massive plates of bone that helped support its heavily built body.

Kannemeyeria was well-adapted to living as a herbivore; it had a powerful beak and strong jaw muscles built for shearing plant material. Kannemeyeria had a massive head with unusually large openings for the eyes, nostrils and jaw muscles. It evidently tore up roots, stripped leaves from the vegetation with its horny beak and ground them up with its toothless jaws.

In a zone of Karoo Supergroup, Kannemeyeria is found alongside large carnivorous archosaur Erythrosuchus.

Distribution

Kannemeyeria skull

Kannemeyeria is known from the Subzone B of Burgersdorp Formation of South Africa, the Ntawere Formation of Zambia, the Omingonde Formation of Namibia, the Lifua member of Manda Formation of Tanzania, and the Quebrada de los Fósiles Formation of Argentina.

Classification

Life reconstruction of K. simocephalus

Below is a cladogram from Kammerer et al. (2013):

Kannemeyeriiformes

Angonisaurus

Shansiodontidae

Tetragonias

Vinceria

Shansiodon

Rhinodicynodon

Dinodontosaurus

Shaanbeikannemeyeria

Kannemeyeria simocephalus

Kannemeyeria lophorhinus

Parakannemeyeria

Xiyukannemeyeria

Dolichuranus

Rechnisaurus

Uralokannemeyeria

Rhadiodromus

Sinokannemeyeria

Rabidosaurus

Wadiasaurus

Stahleckeriidae
Placeriinae

Zambiasaurus

Placerias

Moghreberia

Stahleckeriinae

Stahleckeria

Eubrachiosaurus

Sangusaurus

Jachaleria

Ischigualastia

See also


This page was last updated at 2024-03-25 04:36 UTC. Update now. View original page.

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