Stolokrosuchus

Stolokrosuchus Temporal range: Early Cretaceous, ~ 125–112  Ma PreꞒ Ꞓ O S D C P T J K Pg N
Tooth of S. lapparenti from the Ténéré Desert, Niger
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Archosauria
Clade:	Pseudosuchia
Clade:	Crocodylomorpha
Clade:	Crocodyliformes
Clade:	Neosuchia
Genus:	† Stolokrosuchus Larsson and Gado, 2000
Type species
†Stolokrosuchus lapparenti Larsson and Gado, 2000

Stolokrosuchus is an extinct genus of crocodyliforms found in the Early Cretaceous Elrhaz Formation, Niger.

Discovery and naming

The holotype includes a skull with a long thin snout and bony knobs on the prefrontal, and it was found in the Ténéré Desert, Niger. Indeterminate teeth from the same locality as the holotype have also been assigned to the genus. ^[1]

Stolokrosuchus was described in 2000 by Hans Larsson and Boubacar Gado. The type species is S. lapparenti. ^[2]

Phylogeny

Larsson & Gado (2000) initially described it as related to Peirosauridae, if not a member of that family. ^[2] One study has shown it to be related to Elosuchus . ^[3] However, more recent works usually find Stolokrosuchus to be one of the basalmost neosuchian, ^[4] only distantly related to the elosuchid ^{[5] [6]} or pholidosaurid, ^[7] Elosuchus . It was a semiaquatic crocodylomorph. ^[8]

The cladogram following by Nicholl et al. (2021): ^[1]

Notosuchia

Uruguaysuchidae Araripesuchus tsangatsangana Anatosuchus Araripesuchus wegeneri Araripesuchus buitreraensis Araripesuchus gomesii Araripesuchus patagonicus Uruguaysuchus Mahajangasuchidae Kaprosuchus Mahajangasuchus Peirosauridae Stolokrosuchus Bayomesasuchus Hamadasuchus Antaeusuchus Miadanasuchus Barrosasuchus Gasparinisuchus Rukwasuchus Uberabasuchus Lomasuchus Montealtosuchus Candidodon Ziphosuchia Libycosuchus Simosuchus Neuquensuchus Pakasuchus Malawisuchus Xenodontosuchia Sphagesauria Morrinhosuchus Llanosuchus Notosuchus Labidiosuchus Mariliasuchus Sphagesauridae Adamantinasuchus Yacarerani Caipirasuchus Sphagesaurus Caryonosuchus Armadillosuchus Chimaerasuchus Comahuesuchus Razanandrongobe Sebecosuchia Baurusuchidae Cynodontosuchus Pissarrachampsa Campinasuchus Stratiosuchus Baurusuchus Bergisuchus Iberosuchus Sebecidae Ayllusuchus Bretesuchus Barinasuchus Ogresuchus Sebecus

References

1. Nicholl CS, Hunt ES, Ouarhache D, Mannion PD (2021). "A second peirosaurid crocodyliform from the Mid-Cretaceous Kem Kem Group of Morocco and the diversity of Gondwanan notosuchians outside South America". Royal Society Open Science. 8 (10): Article ID 211254. doi: 10.1098/rsos.211254 . PMC   8511751 . PMID   34659786.
2. Larrson, Hans C. E.; Gado, Boubacar (2000). "A new early Cretaceous crocodyliform from Niger". Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 217 (1): 131–141. doi:10.1127/njgpa/217/2000/131.
3. de Broin, F. de L. (2002). "Elosuchus, a new genus of crocodile from the Lower Cretaceous of the North of Africa". Comptes Rendus Palevol. 1 (5): 275–285. doi:10.1016/S1631-0683(02)00049-0.
4. Turner, Alan H.; Sertich, Joseph J. W. (2010). "Phylogenetic history of Simosuchus clarki (Crocodyliformes: Notosuchia) from the Late Cretaceous of Madagascar". Journal of Vertebrate Paleontology. 30 (6, Memoir 10): 177–236. doi:10.1080/02724634.2010.532348. S2CID   86737170.
5. Bronzati, M.; Montefeltro, F. C.; Langer, M. C. (2012). "A species-level supertree of Crocodyliformes". Historical Biology. 24 (6): 598–606. doi:10.1080/08912963.2012.662680. S2CID   53412111.
6. Marco Brandalise de Andrade; Richard Edmonds; Michael J. Benton & Remmert Schouten (2011). "A new Berriasian species of Goniopholis (Mesoeucrocodylia, Neosuchia) from England, and a review of the genus". Zoological Journal of the Linnean Society. 163 (s1): S66 –S108. doi: 10.1111/j.1096-3642.2011.00709.x .
7. Daniel Fortier; Daniel Perea & Cesar Schultz (2011). "Redescription and phylogenetic relationships of Meridiosaurus vallisparadisi, a pholidosaurid from the Late Jurassic of Uruguay". Zoological Journal of the Linnean Society. 163 (s1): S66 –S108. doi: 10.1111/j.1096-3642.2011.00709.x .
8. Jorge Cubo; Mariana V. A. Sena; Paul Aubier; Guillaume Houee; Penelope Claisse; Mathieu G. Faure-Brac; Ronan Allain; Rafael C. L. P. Andrade; Juliana M. Sayão; Gustavo R. Oliveira (2020). "Were Notosuchia (Pseudosuchia: Crocodylomorpha) warm-blooded? A palaeohistological analysis suggests ectothermy". Biological Journal of the Linnean Society. 131 (1): 154–162. doi:10.1093/biolinnean/blaa081.

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