Kurzfassung
Der Dinosaurierfundpunkt an der Ghost Ranch ist nicht die Typ-Lokalität einer der drei benannten Arten des spättriadischen CeratosaurierCoelophysis (Dinosaurier; Saurischia: Theropoda). Neu entdeckte Fundpunkte spättriadischer Ceratosaurier in der Nähe der Ghost Ranch passen dagegen besser zu der geographischen und stratigraphischen Beschreibung des ErstentdeckersDavid Baldwin. Darüber hinaus stimmen Erhaltung und Morphologie der Ceratosaurier der neuen Fundpunkte besser mit dem Originalmaterial vonBaldwin überein als das Material der Ghost Ranch. Wir nehmen daher an, daß die neuen FundpunkteBaldwins ursprüngliche Fundpunkte sind; damit werden die neuen Funde zu Topotypen vonCoelophysis. Diese Topotypen zeigen, daß sichCoelophysis deutlich vonRioarribasaurus, einem Dinosaurier von der Ghost Ranch, unterscheidet.
Abstract
The dinosaur quarry at Ghost Ranch is not the type locality of any of the three named species of the Late Triassic ceratosaurian dinosaurCoelophysis (Saurischia: Theropoda). Instead, newly discovered localities near Ghost Ranch that produce Late Triassic ceratosaurs match the geographic and stratigraphic description of two of theCoelophysis type localities provided byDavid Baldwin, the original collector. Furthermore, the preservation and morphology of ceratosaur fossils from the new localities more nearly matchesBaldwin’s original material than does the Ghost Ranch quarry material. We conclude that these new localities encompassBaldwin’s localities, so the newly collected ceratosaur fossils from these localities are probable topotypes ofCoelophysis. These topotypes preserve unique morphology that suggestsCoelophysis is a taxon distinct fromRioarribasaurus, the Ghost Ranch dinosaur.
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Sullivan, R.M., Lucas, S.G., Heckert, A. et al. The type locality ofCoelophysis, a Late Triassic dinosaur from north-central New Mexico (USA). Paläont. Z. 70, 245–255 (1996). https://doi.org/10.1007/BF02988281
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DOI: https://doi.org/10.1007/BF02988281