Marmarospondylus

Marmarospondylus; Temporal range: Bathonian; ~168–166 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	Saurischia
Clade:	†Sauropodomorpha
Clade:	†Sauropoda
Clade:	†Neosauropoda
Clade:	†Macronaria (?)
Genus:	†Marmarospondylus; Owen, 1875
Species:	†M. robustus
Binomial name
	†Marmarospondylus robustus; Owen, 1875

Marmarospondylus ("marble [reference to the Forest Marble Formation] vertebra") is a dubious genus of sauropod dinosaur from Middle Jurassic deposits in the English Midlands.

The type species, Marmarospondylus robustus, was described by Richard Owen as a species of the Late Jurassic genus Bothriospondylus in 1875.^[1] The holotype, NHMUK R.22428, a dorsal, was found in the Bathonian-age Forest Marble Formation at Bradford-on-Avon, Wiltshire. Owen himself in an addendum to the same publication coined Marmarospondylus for B. robustus, presumably due to its being older than B. suffossus. Recent publications have treated Marmarospondylus as a dubious member of Macronaria.^[2]^[3]^[4]

References[]

^ Owen, R., 1875, "A monograph on the Fossil Reptilia of the Mesozoic Formations. Monograph on the Genus Bothriospondylus", Palaeontographical Society, 29: 15-26
^ P. Upchurch, P. M. Barrett, and P. Dodson. 2004. Sauropoda. In D. B. Weishampel, H. Osmolska, and P. Dodson (eds.), The Dinosauria (2nd edition). University of California Press, Berkeley 259-322
^ D. Naish and D. M. Martill. 2007. Dinosaurs of Great Britain and the role of the Geological Society of London in their discovery: basal Dinosauria and Saurischia. Journal of the Geological Society, London 164:493-510/
^ Mannion, P.D., 2010 "A revision of the sauropod dinosaur genus 'Bothriospondylus' with a redescription of the type material of the middle Jurassic form 'B. madagascariensis'", Palaeontology, 53(2): 277–296

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[1] Owen, R., 1875, "A monograph on the Fossil Reptilia of the Mesozoic Formations. Monograph on the Genus Bothriospondylus", Palaeontographical Society, 29: 15-26

[2] P. Upchurch, P. M. Barrett, and P. Dodson. 2004. Sauropoda. In D. B. Weishampel, H. Osmolska, and P. Dodson (eds.), The Dinosauria (2nd edition). University of California Press, Berkeley 259-322

[3] D. Naish and D. M. Martill. 2007. Dinosaurs of Great Britain and the role of the Geological Society of London in their discovery: basal Dinosauria and Saurischia. Journal of the Geological Society, London 164:493-510/

[4] Mannion, P.D., 2010 "A revision of the sauropod dinosaur genus 'Bothriospondylus' with a redescription of the type material of the middle Jurassic form 'B. madagascariensis'", Palaeontology, 53(2): 277–296

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