[D] Bolong yixianensis [sG] [T]
Describer
Wu, Godefroit & Hu 2010
Time
Cretaceous Early
Classification
Ornithischia Ornithopoda Iguanodontia
Diet
Herbivore
Fossilsite
Yixian Formation, Liaoning, China
Info
Abstract
The sub-complete skeleton of a new basal Iguanodon, Bolong yixianensis gene.et sp. was discovered in the Yixian Formation of Western Liaoning Province, China. This new taxon is characterized by several cranial and dental autapomorphies: a depressed area at between the maxilla and lachrymal junction, the caudal ramus of prefrontal rostrocaudally forming a depressed area above-the orbital margin, caudally the ventral process running parallel to the ventral margin of the predentary, the articular surface for the rostrodorsal predentary occupying less than two-thirds of the height of the dentary and the rostral tip of dentary therefore situated above-the ventral third of the bone, and distally deflected the primary ridge on maxillary crowns.
It differs from Jinzhousaurus, also from the Yixian Formation of Western Liaoning by at least 14 cranial and dental characters, Including the not-down-turner in sti tip rostral maxilla, ventral process in predentary bifurcate, with Several secondary ridges on maxillary teeth, etc. Bolong is one of the most basal iguanodontoids ever discovered in Asia.
Wu, Godefroit & Hu 2010
Time
Cretaceous Early
Classification
Ornithischia Ornithopoda Iguanodontia
Diet
Herbivore
Fossilsite
Yixian Formation, Liaoning, China
Info
Abstract
The sub-complete skeleton of a new basal Iguanodon, Bolong yixianensis gene.et sp. was discovered in the Yixian Formation of Western Liaoning Province, China. This new taxon is characterized by several cranial and dental autapomorphies: a depressed area at between the maxilla and lachrymal junction, the caudal ramus of prefrontal rostrocaudally forming a depressed area above-the orbital margin, caudally the ventral process running parallel to the ventral margin of the predentary, the articular surface for the rostrodorsal predentary occupying less than two-thirds of the height of the dentary and the rostral tip of dentary therefore situated above-the ventral third of the bone, and distally deflected the primary ridge on maxillary crowns.
It differs from Jinzhousaurus, also from the Yixian Formation of Western Liaoning by at least 14 cranial and dental characters, Including the not-down-turner in sti tip rostral maxilla, ventral process in predentary bifurcate, with Several secondary ridges on maxillary teeth, etc. Bolong is one of the most basal iguanodontoids ever discovered in Asia.