Mikko's Phylogeny Archive

Alligatoroidea - alligators, caimans and relatives

After Brochu, 1997, 1999

<==o Alligatoroidea Gray, 1844 sensu Brochu, 1997 (alligators & caimans; alligaattorinsukuiset krokotiilit, alligaattorit & kaimaanit)
   |-- †Leidyosuchus canadiensis Lambe, 1907; Pal. NA. [incl. Leidyosuchus gilmorei Mook, 1942]
   |?-o †Deinosuchus Holland, 1909 [Polyptychodon; Polydectes; Thecachampsa; Phobosuchus] L.Cret. NAm. (kauhukrokotiilit)
   |  |-- †D. rugosus (Emmons, 1858) [Crocodylus rugosus Emmons, 1858; Polyptychodon rugosus; Polydectes biturgidus Cope, 1869; Thecachampsa rugosa Cope, 1871; Crocodylus rugosus Hay, 1902; Deinosuchus hatcheri Holland, 1909]
   |  `-- †D. riograndensis (Colbert & Bird, 1954) [Phobosuchus riograndensis Colbert & Bird, 1954]
   `--+--o Diplocynodontidae [Diplocynodontinae]
      |  |?- †Tadzhikosuchus macrodentis Efimov, 1982b
      |  |-- †Baryphracta deboniae Frey, Laemmert & Riess, 1987
      |  `--o †Diplocynodon Pomel, 1847
      |     |?- †D. buetikonensis (von Meyer, 1855) [Crocodilus buetikonensis von Meyer, 1855]
      |     |?- †D. deponiae
      |     |?- †D. elavericus Martin, 2010
      |     |?- †D. gervaisi
      |     |?- †D. muelleri [Hispanochampsa muelleri]
      |     |?- †D. tormis
      |     |?- †D. ungeri
      |     |?- †D. tormis
      |     |?- †D. styriacus
      |     |-- †D. darwini (Ludvig, 1877) [D. ebertsi]
      |     `--+-- †D. ratelii Pomel, 1847 [D. gracile]
      |        `-- †D. hantoniensis (Wood, 1846)
      `--o Globidonta Brochu, 1999
         |-- †Stangerochampsa mccabei Wu, Brinkman & Russell, 1996
         |-- †Albertochampsa langstoni Erickson, 1972
         |--o †Brachychampsa Gilmore, 1911
         |  |-- †B. montana Gilmore, 1911
         |  `-- †?B. sealyi Williamson, 1996 [jr syn. of B. montana sensu Sullivan & Lucas, 2003]
         `--o Alligatoridae Gray, 1844 sensu Brochu, 1997 (alligaattorit & kaimaanit)
            |-- †Listrognathosuchus multidentatus (Mook, 1930) Brochu, 1997 [Leidyosuchus multidentatus Mook, 1930] U. Cret. NA.
            |-- †Brachygnathosuchus braziliensis (Mook, 1921) [Dinosuchus terror??]
            |?-o †Eoalligator Young, 1964; Pal. EAs.
            |  |-- †E. chunyii Young, 1964
            |  `-- †e. huiningensis Young, 1982
            |-- Alligatorinae Gray, 1844 (true alligators; alligaattorit)
            `-- Caimaninae Brochu, 1999 [incl. Nettosuchidae] (caimans; kaimaanit)

Alligatoroidea incertae sedis:

    †“Allodaposuchus” affuvelensis (Matheron, 1869) [nomen dubium]
    †Dinosuchus terror [nomen dubium]
    †Xenosuchus paranensis [nomen vanum]
    †Balanerodus logimus Langston, 1965
    †Marrocosuchus zennaroi
    †Musturzabalsuchus buffetauti Buscalioni, Ortega & Vasse, 1997

<==o Alligatoroidea
   |-- †Leidyosuchus canadiensis
   `--o Globidonta
      |--o †Diplocynodon Pomel, 1847
      |  |-- †D. hantoniensis
      |  |-- †D. darwini 
      |  |-- †D. deponiae
      |  `--+-- †D. ratelii
      |     `--+-- †D. muelleri
      |        `-- †D. tormis
      `--+-- Alligatorinae
         `--o Caimaninae sensu Bona et al.
            |--+-- †Stangerochampsa mccabei
            |  |-- †Albertochampsa langstoni
            |  `--o †Brachychampsa
            |     |-- †B. montana
            |     `-- †B. sealyi
            `-- Caimaninae

Reference(s):

• Brochu, C. A. 1997: A review of “Leidyosuchus” (Crocodyliformes, Eusuchia) from the Cretaceous through Eocene of North America.
  –Journal of Vertebrate Paleontology: vol. 17, #4, pp. 679-697
• Brochu, C. A. 1999: Phylogenetics, taxonomy, and historical biogeography of Alligatoroidea.
  –Journal of Vertebrate Paleontology: Vol 19, Supplement to #2
• Buscalioni, A. D., Ortega, F. & Vasse, D., 1997: New crocodiles (Eusuchia: Alligatoroidea) from the Upper Cretaceous of southern Europe.
  –Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science: Vol. 325, #7, pp. 525-530 [doi: http://dx.doi.org/10.1016/S1251-8050(97)89872-2]
• Storrs, G. W. & Efimov, M. B., 2000: Mesozoic crocodyliforms of north-central Eurasia. 402-419
  in Benton, M. J., Shishkin, M. A., Unvin, D. M. & Kurochkin, E. N., (eds.) 2000: The Age of Dinosaurs in Russia and Mongolia.
  –Cambridge University Press, Cambridge, 2000, xxxix-696
• Sullivan, R. M. & Lucas, S. G., 2003: Brachychampsa montana Gilmore (Crocodylia, Alligatoroidea) from the Kirtland Formation (Upper Campanian), San Juan Basin, New Mexico.
  –Journal of Vertebrate Paleontology: Vol. 23, #4, pp. 832-841
• Williamson, T. E., 1996: ?Brachychampsa sealeyi, sp. nov., (Crocodylia, Alligatoroidea) from the Upper Cretaceous (Lower Campanian) Menefee Formation, northwestern New Mexico.
  –Journal of Vertebrate Paleontology: Vol. 16, #3, pp. 421-431
• Wu, X.-C., Russell, A. P. & Brinkman, D. B., 2001: A review of Leidyosuchus canadensis Lambe, 1907 (Archosauria: Crocodylia) and a assessment of cranial variation based upon new material.
  –Canadian Journal of Earth Sciencies: Vol. 38, #12, pp. 1665-1687