Pulaosaurus, new neornithischian from Upper Jurassic of China (free pdf)
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Ben Creisler
Jul 11, 2025, 10:53:59 AM7/11/25
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Ben Creisler
Pulaosaurus qinglong gen. et sp. nov.
Yunfeng Yang, James L. King & Xing Xu (2025)
A new neornithischian dinosaur from the Upper Jurassic Tiaojishan Formation of northern China.
PeerJ 13:e19664
doi: https://doi.org/10.7717/peerj.19664
https://peerj.com/articles/19664/
The Middle and Late Jurassic Yanliao Biota is different from other contemporaneous fossil assemblages in that it lacks neornithischian dinosaurs. Here, we report a new, early-diverging neornithischian, Pulaosaurus qinglong gen. et sp. nov., from the Upper Jurassic Tiaojishan Formation of Qinglong, Hebei Province, of northern China. Diagnostic or noteworthy morphological characteristics of P. qinglong include: five premaxillary teeth; a small boss is present on the caudoventral corner of the dorsal ramus of the jugal; a nuchal crest is located along the parietal; the manus has five digits; a supra-acetabular crest is present on the ilium; the paired arytenoids are gracile and leaf-like in form; the obturator process along the ischium is located near the pubic peduncle; a notch-like shaped obturator opening is present within the pubis; a robust fibular condyle forms a dorsoventrally extending crest on the tibia; a subtriangular flange on the anterior surface of the astragalus extends dorsolaterally along three distal tarsals; three of the distal tarsals are unfused, including a small drop-shaped distal tarsal 3; distal tarsal 3 is pierced by a foramen. A phylogenetic analysis places P. qinglong as one of the earliest-diverging neornithischians yet described. Moreover, P. qinglong represents the second known dinosaur to preserve ossified laryngeal elements, thus suggesting that a bird-like vocalization evolved early in non-avian dinosaur evolution.
A new paper:
Free pdf:
Pulaosaurus qinglong gen. et sp. nov.
Yunfeng Yang, James L. King & Xing Xu (2025)
A new neornithischian dinosaur from the Upper Jurassic Tiaojishan Formation of northern China.
PeerJ 13:e19664
doi: https://doi.org/10.7717/peerj.19664
https://peerj.com/articles/19664/
The Middle and Late Jurassic Yanliao Biota is different from other contemporaneous fossil assemblages in that it lacks neornithischian dinosaurs. Here, we report a new, early-diverging neornithischian, Pulaosaurus qinglong gen. et sp. nov., from the Upper Jurassic Tiaojishan Formation of Qinglong, Hebei Province, of northern China. Diagnostic or noteworthy morphological characteristics of P. qinglong include: five premaxillary teeth; a small boss is present on the caudoventral corner of the dorsal ramus of the jugal; a nuchal crest is located along the parietal; the manus has five digits; a supra-acetabular crest is present on the ilium; the paired arytenoids are gracile and leaf-like in form; the obturator process along the ischium is located near the pubic peduncle; a notch-like shaped obturator opening is present within the pubis; a robust fibular condyle forms a dorsoventrally extending crest on the tibia; a subtriangular flange on the anterior surface of the astragalus extends dorsolaterally along three distal tarsals; three of the distal tarsals are unfused, including a small drop-shaped distal tarsal 3; distal tarsal 3 is pierced by a foramen. A phylogenetic analysis places P. qinglong as one of the earliest-diverging neornithischians yet described. Moreover, P. qinglong represents the second known dinosaur to preserve ossified laryngeal elements, thus suggesting that a bird-like vocalization evolved early in non-avian dinosaur evolution.
Gregory Paul
Jul 11, 2025, 5:25:07 PM7/11/25
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Like wow man, a complete skull and skeleton I can restore for the upcoming ornithsichian field guide!
GSPaul
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Isaac Wilson
Jul 11, 2025, 7:34:07 PM7/11/25
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I'm looking forward to seeing that 👀 my collection of educational books on ornithischians is woefully lacking
Isaac
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Gregory Paul
Jul 11, 2025, 7:51:48 PM7/11/25
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I believe it will be the first dinobook on ornithischians alone.
About time baby!
GSPaul
Mickey Mortimer
Jul 12, 2025, 3:54:36 AM7/12/25
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"I believe it will be the first dinobook on ornithischians alone."
Dodson, 1996. The Horned Dinosaurs.
Carpenter, 2001. The Armored Dinosaurs.
Carpenter, 2006. Horns and Beaks.
Ryan et al., 2010. New Perspectives on Horned Dinosaurs.
Ryan et al., 2010. New Perspectives on Horned Dinosaurs.
Eberth et al., 2014. Hadrosaurs.
Etc.
Coming next year is some very direct competition- Jones, 2026.
The Princeton Encyclopedia of Dinosaurs: Ornithischians.
Mickey Mortimer
Ethan Schoales
Jul 12, 2025, 3:58:59 AM7/12/25
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Competition? And yet it’s also by Princeton?
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Gregory Paul
Jul 12, 2025, 8:36:19 AM7/12/25
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I meant popular book for the general audience. Not academic books for us paleonerds.
GSPaul
mkir...@gmail.com
Jul 12, 2025, 2:36:37 PM7/12/25
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No offense to Mr. Jones, but given a choice of books, I would be more likely to buy Gregory S. Paul's The Princeton Field Guide to Ornithischian Dinosaurs than The Princeton Encyclopedia of Dinosaurs: Ornithischians by Bryce Jones.
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