Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If you need an accessible version of this item please contact JSTOR User Support

A Review of "Leidyosuchus" (Crocodyliformes, Eusuchia) from the Cretaceous through Eocene of North America

Christopher A. Brochu
Journal of Vertebrate Paleontology
Vol. 17, No. 4 (Dec. 15, 1997), pp. 679-697
Stable URL: http://www.jstor.org/stable/4523857
Page Count: 19
  • More info
  • Cite this Item
If you need an accessible version of this item please contact JSTOR User Support
A Review of "Leidyosuchus" (Crocodyliformes, Eusuchia) from the Cretaceous through Eocene of North America
Preview not available

Abstract

A review of all described species referred to Leidyosuchus recognizes six valid taxa: Leidyosuchus canadensis, L. multidentatus, L. sternbergii, L. formidabilis, L. wilsoni, and L. acutidentatus. Leidyosuchus riggsi is a nomen dubium, L. gilmorei is a junior synonym of L. canadensis, and Diplocynodon stuckeri is a junior synonym of L. wilsoni. Phylogenetic analysis of 164 morphological characters indicates a basal position within Alligatoroidea for L. canadensis. The name Listrognathosuchus is established for L. multidentatus, which is an alligtoroid, but difficult to characterize further because of its incompleteness. The remaining taxa form a clade herein named Borealosuchus; this group is related to, but not within, a monophyletic group that includes Alligatoroidea and Crocodyloidea. A close relationship between these taxa and Diplocynodon is rejected. Although presently known only from the Tertiary of Europe, taxa closer to Diplocynodon than to Alligatoridae are expected to occur in the Late Cretaceous.

Page Thumbnails

  • Thumbnail: Page 
679
    679
  • Thumbnail: Page 
680
    680
  • Thumbnail: Page 
681
    681
  • Thumbnail: Page 
682
    682
  • Thumbnail: Page 
683
    683
  • Thumbnail: Page 
684
    684
  • Thumbnail: Page 
685
    685
  • Thumbnail: Page 
686
    686
  • Thumbnail: Page 
687
    687
  • Thumbnail: Page 
688
    688
  • Thumbnail: Page 
689
    689
  • Thumbnail: Page 
690
    690
  • Thumbnail: Page 
691
    691
  • Thumbnail: Page 
692
    692
  • Thumbnail: Page 
693
    693
  • Thumbnail: Page 
694
    694
  • Thumbnail: Page 
695
    695
  • Thumbnail: Page 
696
    696
  • Thumbnail: Page 
697
    697