Biology:Botucaraitherium

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Short description: Extinct genus of mammaliamorphs

Botucaraitherium
Temporal range: Norian
~225.42 Ma
↓
Illustration of the holotype jaw
Scientific classification e
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. et al. (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. https://www.researchgate.net/publication/268876654_A_new_prozostrodontian_cynodont_Therapsida_from_the_Late_Triassic_Riograndia_Assemblage_Zone_Santa_Maria_Supersequence_of_Southern_Brazil. 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. 

Wikidata ☰ Q18584836 entry