Mahajangasuchidae
Temporal range: Cenomanian - Maastrichtian
Mahajangasuchus insignis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Archosauria
Clade: Pseudosuchia
Clade: Crocodylomorpha
Clade: Metasuchia
Family: Mahajangasuchidae
Sereno and Larsson, 2009[1]
Genera

Mahajangasuchidae is an extinct family of notosuchian[2][3] crocodyliforms. It currently contains two genera, Mahajangasuchus and Kaprosuchus, both of which lived during the Late Cretaceous in Gondwana. It is defined as the most inclusive clade containing Mahajangasuchus insignis but not Notosuchus terrestris, Simosuchus clarki, Araripesuchus gomesii, Baurusuchus pachecoi, Peirosaurus torminni, Goniopholis crassidens, Pholidosaurus schaumbergensis, or Crocodylus niloticus.[1] Phylogenetically, Mahajangasuchidae is placed just outside pholidosaurids and more derived neosuchians.[3]

Defining characters of the family include fused nasals, a jaw articulation below the posterior maxillary tooth row, a deep mandibular symphysis that is oriented anterodorsally, and the formation of a hornlike posterodorsal process from the squamosal and parietal (which is much more pronounced in Kaprosuchus).

Phylogeny

Cladogram showing the phylogenetic relationship of Mahajangasuchidae within Neosuchia after Sereno and Larsson, 2009:[1]

Neosuchia 

Sebecia

unnamed
 Mahajangasuchidae 

Mahajangasuchus

Kaprosuchus

unnamed

Pholidosauridae

unnamed

Laganosuchus

unnamed

Bernissartia

unnamed

Isisfordia

Crocodylia

In 2014, Mahajangasuchidae were grouped within Notosuchia:[2]

Notosuchia
Uruguaysuchidae

Araripesuchus tsangatsangana

Anatosuchus

Araripesuchus wegeneri

Araripesuchus buitreraensis

Araripesuchus gomesii

Araripesuchus patagonicus

Uruguaysuchus

Stolokrosuchus

Mahajangasuchidae

Kaprosuchus

Mahajangasuchus

Peirosauridae

Hamadasuchus

Gasparinisuchus

Lomasuchus

Montealtosuchus

Uberabasuchus

Candidodon

Ziphosuchia

Libycosuchus

Simosuchus

Malawisuchus

Pakasuchus

Morrinhosuchus

Notosuchus

Coringasuchus

Labidiosuchus

Mariliasuchus

Sphagesauridae

Adamantinasuchus

Yacarerani

Caipirasuchus stenognathus

Caipirasuchus paulistanus

Caipirasuchus montealtensis

Sphagesaurus

Armadillosuchus

Caryonosuchus

Chimaerasuchus

Comahuesuchus

Sebecosuchia

Pabwehshi

Baurusuchidae

Cynodontosuchus

Pissarrachampsa

Stratiotosuchus

Campinasuchus

Baurusuchus albertoi

Baurusuchus pachecoi

Baurusuchus salgadoensis

Bergisuchus

Iberosuchus

Sebecidae

Lorosuchus

Pehuenchesuchus

Barinasuchus

Ayllusuchus

Bretesuchus

Lumbrera form

Langstonia

Sebecus

Zulmasuchus

The cladogram following by Nicholl et al. 2021:[3]

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

See also

  • Sebecosuchia - another group of terrestrial crocodylomorphs.

References

  1. 1 2 3 Sereno, Paul; Larsson, Hans (2009-11-19). "Cretaceous Crocodyliforms from the Sahara". ZooKeys (28): 1–143. doi:10.3897/zookeys.28.325. ISSN 1313-2970.
  2. 1 2 Pol, D.; Nascimento, P. M.; Carvalho, A. B.; Riccomini, C.; Pires-Domingues, R. A.; Zaher, H. (2014). "A New Notosuchian from the Late Cretaceous of Brazil and the Phylogeny of Advanced Notosuchians". PLOS ONE. 9 (4): e93105. Bibcode:2014PLoSO...993105P. doi:10.1371/journal.pone.0093105. PMC 3973723. PMID 24695105.
  3. 1 2 3 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.


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