The perinate skull of Byronosaurus (Troodontidae) with observations on the cranial ontogeny of paravian theropods
The skulls of two perinate paravians from Ukhaa Tolgod, Djadoktha Formation, Mongolia,
are described here. The skulls are nearly unique in their combination of ontogenetic age
and preservational quality and provide us with the first look at the morphology of such
important anatomical regions as the rostrum, palate, and braincase at or near the onset of
postnatal development in a nonavian paravian coelurosaur. Based on a number of derived
characters, the skulls are allocated to a derived position within Troodontidae that is outside …
are described here. The skulls are nearly unique in their combination of ontogenetic age
and preservational quality and provide us with the first look at the morphology of such
important anatomical regions as the rostrum, palate, and braincase at or near the onset of
postnatal development in a nonavian paravian coelurosaur. Based on a number of derived
characters, the skulls are allocated to a derived position within Troodontidae that is outside …
[PDF][PDF] The perinate skull of Byronosaurus (Troodontidae) with observations on the cranial ontogeny of paravian theropods.(American Museum novitates, no. 3657)
GS Bever, M Norell - 2009 - digitallibrary.amnh.org
The skulls of two perinate paravians from Ukhaa Tolgod, Djadoktha Formation, Mongolia,
are described here. The skulls are nearly unique in their combination of ontogenetic age
and preservational quality and provide us with the first look at the morphology of such
important anatomical regions as the rostrum, palate, and braincase at or near the onset of
postnatal development in a nonavian paravian coelurosaur. Based on a number of derived
characters, the skulls are allocated to a derived position within Troodontidae that is outside …
are described here. The skulls are nearly unique in their combination of ontogenetic age
and preservational quality and provide us with the first look at the morphology of such
important anatomical regions as the rostrum, palate, and braincase at or near the onset of
postnatal development in a nonavian paravian coelurosaur. Based on a number of derived
characters, the skulls are allocated to a derived position within Troodontidae that is outside …
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