Botucaraitherium
Temporal range: Norian
~225.42 Ma
↓
Illustration of the holotype jaw
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Synapsida
Clade: Therapsida
Clade: Cynodontia
Clade: Mammaliamorpha
Genus: †Botucaraitherium
Soares et al., 2014
Type species
†Botucaraitherium belarminoi
Soares et al., 2014

Botucaraitherium is an extinct genus of prozostrodontian cynodonts from the early Norian Riograndia Assemblage Zone in the Candelária Formation of the Paraná Basin in southeastern Brazil.[1] It is known from a single type species, Botucaraitherium belarminoi. The genus name is derived from the Botucaraí Hill, which dominates the landscape of Candelária, Rio Grande do Sul. The species epithet honors Belarmino Stefanello, a volunteer at the Museu Municipal Aristides Carlos Rodrigues, who found the fossil.[2]

Botucaraitherium in a cladogram after Stefanello et al. (2023):[3]

Probainognathia

Lumkuia

Chiniquodon

Probainognathidae

Ecteniniidae

Protheriodon

Prozostrodontia
Prozostrodontidae

Prozostrodon

Pseudotherium

Therioherpeton

Irajatherium

Riograndia

Diarthrognathus

Pachygenelus

Tritylodontidae

Botucaraitherium

Brasilodon

Mammaliaformes

References

  1. ^ Schultz, C. L.; Martinelli, A. G.; Soares, M. B.; Pinheiro, F. L.; Kerber, L.; Horn, B. L. D.; Pretto, F. A.; Müller, R. T.; Melo, T. P. (2020). "Triassic faunal successions of the Paraná Basin, southern Brazil". Journal of South American Earth Sciences. 104: 102846. doi:10.1016/j.jsames.2020.102846.
  2. ^ Soares, M. B.; Martinelli, A. G.; de Oliveira, T. V. (2014). "A new prozostrodontian cynodont (Therapsida) from the Late Triassic Riograndia Assemblage Zone (Santa Maria Supersequence) of Southern Brazil". Anais da Academia Brasileira de Ciências. 86: 1673–1691. doi:10.1590/0001-3765201420140455. hdl:10183/119079. Retrieved 2019-03-26.
  3. ^ Stefanello, M.; Martinelli, A. G.; Müller, R. T.; Dias-da-Silva, S.; Kerber, L. (2023). "A complete skull of a stem mammal from the Late Triassic of Brazil illuminates the early evolution of prozostrodontian cynodonts". Journal of Mammalian Evolution. doi:10.1007/s10914-022-09648-y.


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