Mandasuchus

Mandasuchus
Temporal range: Triassic, Anisian–Ladinian
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Reptilia
Clade:Paracrocodylomorpha
Genus:†Mandasuchus
Butler et al., 2018
Type species
Mandasuchus tanyauchen
Butler et al., 2018

Mandasuchus is an extinct genus of paracrocodylomorph pseudosuchian from the Manda Formation of Tanzania, which dates back to the Ladinian or Anisian stage of the Middle Triassic.

Taxonomic history

The name was first used in a 1957 doctoral dissertation by Alan J. Charig of the University of Cambridge, along with Teleocrater, an archosaur formally named in 2017.[1][2] Several well preserved specimens have been found, although there is little cranial material.

The family Prestosuchidae was erected in 1967 by Alfred Romer to include Mandasuchus and three other formally named genera of rauisuchians.[3][4] Charig and two coauthors suggested in a 1965 study dealing with saurischians that Mandasuchus was a possible ancestor of the prosauropods, without explanation.[5][6] In his 1993 study of the phylogeny of Crocodylotarsi, J. Michael Parrish suggested that Mandasuchus is the same genus as the European prestosuchid Ticinosuchus ferox due to the extreme similarity of some homologous postcranial bones, but withheld final taxonomic determination of Mandasuchus until Charig provided a published description of the material.[7] However, when Mandasuchus was formally described in 2018, it was recovered as a loricatan more basal than Prestosuchus.[8]

References

  1. ↑ Charig, A. J. (1957). New Triassic archosaurs from Tanganyika, including Mandasuchus and Teleocrater: Dissertation Abstracts. Cambridge University.
  2. ↑ Nesbitt, S.J.; Butler, R.J.; Ezcurra, M.D.; Barrett, P.M.; Stocker, M.R.; Angielczyk, K.D.; Smith, R.M H.; Sidor, C.A.; Niedźwiedzki, G.; Sennikov, A.G.; Charig, A.J. (2017). "The earliest bird-line archosaurs and the assembly of the dinosaur body plan". Nature. doi:10.1038/nature22037.
  3. ↑ Romer, A. S. (1967). Vertebrate Paleontology. Chicago: University of Chicago Press. p. 468.
  4. ↑ Alcober, O. (2000). "Redescription of the skull of Saurosuchus galilei (Archosauria: Rauisuchidae)". Journal of Vertebrate Paleontology. 20 (2): 302–316. doi:10.1671/0272-4634(2000)020[0302:ROTSOS]2.0.CO;2.
  5. ↑ Charig, A. J.; Attridge, J.; Crompton, A. W. (1965). "On the origin of the sauropods and the classification of the Saurischia". Proceedings of the Linnean Society of London. 176: 197–221. doi:10.1111/j.1095-8312.1965.tb00944.x.
  6. ↑ Bonaparte, J. F. (1976). "Pisanosaurus mertii Casamiquela and the origin of the Ornithischia". Journal of Paleontology. 50 (5): 808–820.
  7. ↑ Parrish, J. M. (1993). "Phylogeny of the Crocodylotarsi, with reference to archosaurian and crurotarsan monophyly". Journal of Vertebrate Paleontology. 13 (3): 287–308. doi:10.1080/02724634.1993.10011511.
  8. ↑ Richard J. Butler; Sterling J. Nesbitt; Alan J. Charig; David J. Gower; Paul M. Barrett (2018). Mandasuchus tanyauchen, gen. et sp. nov., a pseudosuchian archosaur from the Manda Beds (?Middle Triassic) of Tanzania. Journal of Vertebrate Paleontology. 37 (Supplement to No. 6): 96–121. doi:10.1080/02724634.2017.1343728.


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