Leptosuchomorpha Explained

Leptosuchomorpha is a clade of phytosaurs. It is a node-based taxon defined by Michelle R. Stocker in 2010 as the last common ancestor of Leptosuchus studeri and Pseudopalatus pristinus and all of its descendants.[1] A new definition was proposed by Andrew S. Jones and Richard J. Butler in 2018 as the last common ancestor and all descendants of Smilosuchus lithodendrorum, Leptosuchus studeri, and Machaeroprosopus pristinus to reflect the new interrelationships of Phytosauria they recovered.[2]

Phylogeny

Below is a cladogram from Stocker (2012)[1]

Notes and References

  1. Stocker . M. R. . A new phytosaur (Archosauriformes, Phytosauria) from the Lot's Wife beds (Sonsela Member) within the Chinle Formation (Upper Triassic) of Petrified Forest National Park, Arizona . 10.1080/02724634.2012.649815 . Journal of Vertebrate Paleontology . 32 . 3 . 573–586 . 2012 . 129527672 .
  2. Jones . Andrew S. . Butler . Richard J. . A new phylogenetic analysis of Phytosauria (Archosauria: Pseudosuchia) with the application of continuous and geometric morphometric character coding . PeerJ . 10 December 2018 . 6 . e5901 . 10.7717/peerj.5901. 30581656 . 6292387 . free .

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