Genus
Valid Extinct

Protognathosaurus

first jaw lizard
Olshevsky 1991

Protognathosaurus is a genus of herbivorous sauropod dinosaur from the Middle Jurassic Lower Shaximiao Formation in Sichuan, present-day China.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
1
Group
Dinosaures
Herbivore Ground dwelling, gregarious Terrestrial
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Classification
Dinosauria Unranked clade
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Saurischia Unranked clade
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Sauropodomorpha Unranked clade
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Massopoda Unranked clade
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Sauropodiformes Unranked clade
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Sauropoda Unranked clade
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Gravisauria Unranked clade
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Eusauropoda Unranked clade
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Cetiosauridae Family
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Protognathosaurus Genus
Fossil sites 1 geolocated sites
Distribution
Top countries
🇨🇳 China
1
Geological formations
Shaximiao
1
Temporal distribution
Callovian (165.3–161.5 Ma)
1
Species (1)
Protognathosaurus oxyodon 171 Ma
Synonyms (1)
Protognathus replaced by Protognathosaurus
Bibliography
Original description
G. Olshevsky. 1991. A revision of the parainfraclass Archosauria Cope, 1869, excluding the advanced Crocodylia. Mesozoic Meanderings 2:1-196
Bibliography (1)
Y. Zhang. 1988. The Middle Jurassic dinosaur fauna from Dashapu, Zigong, Sichuan. Vol. I. Sauropod dinosaur (1). Shunosaurus. Sichuan Publishing House of Science and Technology, Chengdu