Penelopognathus

Penelopognathus; Temporal range: Early Cretaceous, Albian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	† Ornithischia
Clade:	† Ornithopoda
Superfamily:	† Hadrosauroidea
Genus:	† Penelopognathus
Species:	†P. weishampeli
Binomial name
	†Penelopognathus weishampeli; Godefroit, Li, and Shang, 2005

Last updated March 23, 2025

Penelopognathus (meaning "wild duck jaw") is a genus of dinosaur which lived during the Early Cretaceous. It was an iguanodont ancestral to hadrosaurids, which also contributes to the hypothesis that hadrosauroids originated in Asia.^[1] Fossils have been found in the Bayin-Gobi Formation in what is now China. The type species, Penelopognathus weishampeli, named after David Weishampel, was described by Godefroit, Li, and Shang in 2005, based on fragmentary jaw fossils.^[1]

Its jaw is similar to that of Altirhinus and Probactrosaurus , suggesting that Penelopognathus was related to the two genera.^[1] Prieto-Márquez and Carrera Farias (2021) found that Telmatosaurus was the sister taxon to Penelopognathus, which was also found to be closely related to Lophorhothon , as opposed to Tethyshadros .^[2]Penelopognathus grew up to around 5 metres (16 ft) long and around 2 metres (6.6 ft) tall when fully grown.

References

1 2 3 Godefroit, P., Li, H., and Shang, C.Y. (2005). "A new primitive hadrosauroid dinosaur from the Early Cretaceous of Inner Mongolia (P.R. China)". Comptes Rendus Palevol 4(8):697-705. doi : 10.1016/j.crpv.2005.07.004.
↑ Prieto-Márquez, Albert; Carrera Farias, Miguel (2021). "A new late-surviving early diverging Ibero-Armorican duck-billed dinosaur and the role of the Late Cretaceous European Archipelago in hadrosauroid biogeography". Acta Palaeontologica Polonica. 66. doi: 10.4202/app.00821.2020 .

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[Godefroit2005-1] 1 2 3 Godefroit, P., Li, H., and Shang, C.Y. (2005). "A new primitive hadrosauroid dinosaur from the Early Cretaceous of Inner Mongolia (P.R. China)". Comptes Rendus Palevol 4(8):697-705. doi : 10.1016/j.crpv.2005.07.004.

[2] Prieto-Márquez, Albert; Carrera Farias, Miguel (2021). "A new late-surviving early diverging Ibero-Armorican duck-billed dinosaur and the role of the Late Cretaceous European Archipelago in hadrosauroid biogeography". Acta Palaeontologica Polonica. 66. doi: 10.4202/app.00821.2020 .

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