Following the newsletter of a systematic paper describing Coahuilasaurus lipani the Saurolophinae evolutionary tree has been up to date.  Coahuilasaurus was once named and described via Longrich et al. This new Mexican hadrosaur is understood from the entrance finish of a cranium.  It differs from comparable species in having an overly brief, deep muzzle and a chain of tooth-like projections at the roof of the mouth. The genus identify is derived from the Coahuila State and the Greek “sauros” for lizard. The species identify honours the Lipani Apache tribe of northern Mexico.

It were concept that the fossil subject material represented a Kritosaurus. Then again, a extra detailed research printed distinctive characteristics which approved the established order of a brand new species of hadrosaur.

To learn The whole lot Dinosaur’s weblog put up about Coahuilasaurus lipani: A New Duckbill Dinosaur from Northern Mexico.

The Saurolophinae Evolutionary Tree

Coahuilasaurus lipani phylogeny.

The phylogeny of Coahuilasaurus. Evolutionary tree of the Saurolophinae, appearing the relationships of Coahuilasaurus inside the Kritosaurini. Image credit score: Longrich et al.

Image credit score: Longrich et al

The researchers carried out two phylogenetic analyses. The ideas used was once given other weights, and the 2 units of effects are other. Then again, the second one research is better-resolved and is in keeping with the stratigraphy.

Each analyses get better 3 primary subclades inside the Kritosaurini tribe.

  1. Coahuilasaurus lipani, Gryposaurus utahensis, Rhinorex condrupus, and Gryposaurus notabilis.
  2. Naashoibitosaurus ostromi, Anasazisaurus horneri, and Kritosaurus navajovius.
  3. Contains the South American kritosaurins, the Austrokritosauria, in addition to “Gryposaurus” alsatei.
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The picture (above) displays the Gryposaurus fashion that was once offered via Safari Ltd in 2013. This determine has been retired.

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The clinical paper: “Coahuilasaurus lipani, a New Kritosaurin Hadrosaurid from the Higher Campanian Cerro Del Pueblo Formation, Northern Mexico” via Nicholas R. Longrich, Angel Alejandro Ramirez Velasco, Jim Kirkland, Andrés Eduardo Bermúdez Torres and Claudia Inés Serrano-Brañas revealed within the magazine MDPI Variety.

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