Ahshislesaurus

Description

Source: Wikipédia

Ahshislesaurus is an extinct genus of saurolophine hadrosaurid dinosaurs known from the Late Cretaceous of what is now New Mexico, United States. It is known from a partial skull and three neck vertebrae discovered in 1916 and first described in 1935. Prior to its scientific naming, researchers debated whether the specimen belonged to Kritosaurus navajovius, a related species from the same layers of rocks, or a distinct animal. The genus contains a single species, Ahshislesaurus wimani, named in 2025. A partial skeleton and isolated limb and girdle bones found in the same rock layers may also belong to Ahshislesaurus.
As a member of the hadrosaurid tribe Kritosaurini, Ahshislesaurus did not have a decorative tube-like crest as in lambeosaurines like Parasaurolophus. Instead, it had a small bump over its snout. One of the most distinctive anatomical traits that distinguishes Ahshislesaurus from all other hadrosaurids is the height of its mandible at the front; in other species, the front part of the jaw gets thinner from top to bottom, while in Ahshislesaurus, the front is notably deeper.
Ahshislesaurus is known from the lower Kirtland Formation (Hunter Wash Member), which dates to the Campanian age (around 75 Ma) of the Cretaceous period. This formation has also yielded abundant fossils of diverse dinosaurs, including tyrannosauroids, ankylosaurids, pachycephalosaurs, and ceratopsians, in addition to pterosaurs, crocodylomorphs, turtles, and fish.

Information(s)

Source: The Paleobiology Database

• Attibution: Dalman et al. 2025⁹³⁵³⁹
• Statut: Valide
• Nom commun: ?
• Longueur (en m): ?
• Largeur (en m): ?
• Hauteur (en m): ?
• Poids (en m): de ? à ?
• Environnement de découverte: terrestrial
• Mode de vie: terrestrial
• Mode de locomotion: actively mobile
• Vision: ?
• Alimentation: herbivore
• Mode de reprodution: oviparous, dispersal=direct/internal,mobile
• Classification: Saurolophinae >> Hadrosauridae >> Hadrosauroidea >> Hadrosauriformes >> Styracosterna >> Dryomorpha >> Iguanodontia >> Clypeodonta >> Ornithopoda >> Cerapoda >> Genasauria >> Ornithischia >> Dinosauria
• Période: Campanian (de -83.60 Ma à -72.20 Ma)
• Espèce(s):
  • Ahshislesaurus wimani (Valide)⁹³⁵³⁹
• Specimen(s):

  Pas de spécimen dans la base de donnée.

• Autre(s) Taxon(s) trouvés dans la litterature:
  • Ahshislesaurus wimani
• Découverte(s): 3 occcurrences
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  • États-Unis
    • New Mexico
      • San Juan
        • Formation Kirtland
          • Ahshislesaurus wimani: ? ⁹³⁵³⁹
          • Ahshislesaurus wimani: ? ⁹³⁵³⁹
          • Ahshislesaurus wimani: ? ⁹³⁵³⁹
• Historique des modifications:

Pas de modification récente.