Assemblage-level structure in Morrison Formation dinosaurs, Western Interior, USA
نویسندگان
چکیده
منابع مشابه
Neural Spine Bifurcation in Sauropod Dinosaurs of the Morrison Formation: Ontogenetic and Phylogenetic Implications
It has recently been argued that neural spine bifurcation increases through ontogeny in several Morrison Formation sauropods, that recognition of ontogenetic transformation in this ‘key character’ will have sweeping implications for sauropod phylogeny, and that Suuwassea and Haplocanthosaurus in particular are likely to be juveniles of known diplodocids. However, we find that serial variation i...
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Conclusive evidence for sexual dimorphism in non-avian dinosaurs has been elusive. Here it is shown that dimorphism in the shape of the dermal plates of Stegosaurus mjosi (Upper Jurassic, western USA) does not result from non-sex-related individual, interspecific, or ontogenetic variation and is most likely a sexually dimorphic feature. One morph possessed wide, oval plates 45% larger in surfac...
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ژورنال
عنوان ژورنال: Geology of the Intermountain West
سال: 2018
ISSN: 2380-7601
DOI: 10.31711/giw.v5.pp9-22