Eucercosaurus

Eucercosaurus (meaning "good-tailed lizard"[1]) is the name given to a genus of ornithopod dinosaur from the Albian stage of the Early Cretaceous. It was an ornithopod discovered in the Cambridge Greensand of England and is known from 19 centra, 3 sacrals, 4 dorsals and 12 caudals, and a neural arch found near Trumpington, Cambridgeshire. [1][2] The type species, E. tanyspondylus, was described by British paleontologist Harry Seeley in 1879.[3] It is considered a dubious name, and was once considered an ankylosaur. According to a 2020 study, Eucercosaurus and Syngonosaurus were basal iguanodontians.[4]

Eucercosaurus Temporal range: late Albian ~105–100 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Vertebra
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Sauropsida
Superorder:	Dinosauria
Order:	†Ornithischia
Suborder:	†Ornithopoda
(unranked):	†Iguanodontia
Genus:	†Eucercosaurus Seeley, 1879
Binomial name
†Eucercosaurus tanyspondylus Seeley, 1879
Synonyms
Anoplosaurus tanyspondylus Steel, 1969

References

1. http://www.paleofile.com/Dinosaurs/Armor/Eucercosaurus.asp
2. M. K. Vickaryous, T. Maryanska, and D. B. Weishampel. 2004. Ankylosauria. In D. B. Weishampel, P. Dodson, and H. Osmolska (eds.), The Dinosauria (second edition). University of California Press, Berkeley 363-392
3. Seeley, H.G. (1879). "On the Dinosauria of the Cambridge Greensand". Quarterly Journal of the Geological Society. 35 (1–4): 591–636. doi:10.1144/GSL.JGS.1879.035.01-04.42. ISSN 0370-291X. S2CID 129277596.
4. Barrett, Paul M.; Bonsor, Joseph A. (2020). "A revision of the non-avian dinosaurs Eucercosaurus tanyspondylus and Syngonosaurus macrocercus from the Cambridge Greensand, UK". Cretaceous Research: 104638. doi:10.1016/j.cretres.2020.104638.