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Megapnosaurus
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
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Megapnosaurus (βgroΓe tote Echseβ), frΓΌher Syntarsus, ist eine Gattung kleiner theropoder Dinosaurier aus dem frΓΌhen Unterjura, die den Coelophysis-Arten sehr Γ€hneln.
Im Jahr 2001 wurde Syntarsus von den Entomologen Ivie, Slipinski und Wegrzynowicz in Megapnosaurus umbenannt, nachdem sich herausgestellt hatte, dass der ursprΓΌngliche Gattungsname bereits 1869 fΓΌr einen KΓ€fer vergeben worden war (Syntarsus (Raath, 1969)).cite-ref-4[4]
Contents
β’ Merkmale
β’ Systematik
β’ Literatur
β’ Einzelnachweise
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Merkmale
Megapnosaurus unterscheidet sich von Coelophysis unter anderem durch seine verwachsenen FuΓknochen, seine etwas geringere GrΓΆΓe sowie durch die zwei halbmondfΓΆrmigen KnochenkΓ€mme auf dem SchΓ€del. Bei gut zwei Metern LΓ€nge erreichte er ein Gewicht von ungefΓ€hr 15 Kilogramm.
Systematik
Megapnosaurus gehΓΆrt zur Coelophysoidea, einer Gruppe primitiver Theropoden. Er ist sehr nahe mit Coelophysis verwandt. Kladogramm nach Tykoski und Rowe (2004):cite-ref-5[5]
Literatur
β’ Randall B. Irmis: First report of Megapnosaurus (Theropoda: Coelophysoidea) from China. In: PaleoBios. Bd. 24, Nr. 3, 2004, ISSN 0031-0298, S. 11β18, Volltext (PDF; 881 kB).
Einzelnachweise
cite-note-paul-10-11. Gregory S. Paul: The Princeton Field Guide To Dinosaurs. Princeton University Press, Princeton NJ 2010, ISBN 978-0-691-13720-9, S. 73β74, Online.
cite-note-33. β Timothy Rowe: A new species of theropod dinosaur Syntarsus from the Early Jurassic Kayenta Formation of Arizona. In: Journal of Vertebrate Paleontology. Bd. 9, Nr. 2, 1989, ISSN 0272-4634, S. 125β136, doi:10.1080/02724634.1989.10011748.
cite-note-55. β Innere und ΓuΓere Systematik der Coelophysoidea