An assessment of variability in theropod dinosaur remains from the Bathonian (Middle Jurassic) of Stonesfield and New Park Quarry, UK and taxonomic implications for Megalosaurus bucklandii and Iliosuchus incognitus.

Benson, R. B. J. (2009) An assessment of variability in theropod dinosaur remains from the Bathonian (Middle Jurassic) of Stonesfield and New Park Quarry, UK and taxonomic implications for Megalosaurus bucklandii and Iliosuchus incognitus. Palaeontology, 52 (4). pp. 857-877. ISSN 0031-0239 DOI 10.1111/j.1475-4983.2009.00884.x

PDF Benson2009Megalosaurusvariation.pdf Restricted to Registered users only Download (713kB) | Request a copy

Abstract

The assemblage of large-bodied theropod remains from the Taynton Limestone Formation (middle Bathonian) of Stonesfield, Oxfordshire and the Chipping Norton Limestone Formation (lowest Bathonian) of New Park Quarry, Gloucestershire, UK is interpreted as monospecific. An assessment of morphological variation in theropod fossils from these localities reveals no taxonomically-significant variation among remains representing large-bodied individuals. Previous observations of anatomical variation among femora, ilia and scapulocoracoids are attributed to postmortem damage and deformation. Referral of all such material to the first named dinosaur taxon, Megalosaurus bucklandii Mantell, is therefore justified. ‘Iliosuchus incognitus’ lacks autapomorphies and is a nomen dubium. However, other remains of small-bodied theropods from Stonesfield indicate a minimum of two small-bodied taxa that are distinct from M. bucklandii.

Item Type:	Article
Additional Information:	The definitive version is available at www3.interscience.wiley.com
Uncontrolled Keywords:	09AREP; IA58
Subjects:	04 - Palaeobiology
Divisions:	04 - Palaeobiology
Journal or Publication Title:	Palaeontology
Volume:	52
Page Range:	pp. 857-877
Identification Number:	10.1111/j.1475-4983.2009.00884.x
Depositing User:	Sarah Humbert
Date Deposited:	10 Jul 2009 16:27
Last Modified:	23 Jul 2013 09:55
URI:	http://eprints.esc.cam.ac.uk/id/eprint/1085

Available Versions of this Item

• An assessment of variability in theropod dinosaur remains from the Bathonian (Middle Jurassic) of Stonesfield and New Park Quarry, UK and taxonomic implications for Megalosaurus bucklandii and Iliosuchus incognitus. (deposited 10 Jul 2009 16:27) [Currently Displayed]

Actions (login required)

View Item