Open Paleo

Iliosuchus

Huene, 1932 IL-ee-oh-SOO-kus Nomen dubium

From the ilium (hip bone) and Greek Souchos (the crocodile god); meaning "crocodile-hipped"

168.2–165.3 million years ago Bathonian, Middle Jurassic
Middle Jurassic stages

Iliosuchus is a genus of theropod dinosaur known from Bathonian-aged (168.3-166.1 mya) rocks of England. It was perhaps 2 meters (6.6 ft) long.

Under dispute

Iliosuchus incognitus is a nomen dubium based on ilia that are difficult to distinguish from those of a juvenile Megalosaurus; it has been interpreted as a possible tyrannosauroid or a megalosaurid (Benson, 2008). Because these hypotheses span Coelurosauria and Megalosauroidea, it is placed conservatively at Tetanurae incertae sedis.

Species

Iliosuchus incognitus Huene, 1932 Nomen dubium

Type species

From Latin 'incognitus' meaning 'unknown', reflecting the uncertain affinities of the taxon at the time of its description.

Holotype
BMNH R83 , Natural History Museum
Material
Single ilium
Horizon
Taynton Limestone Formation, Bathonian, Middle Jurassic , 168.2–165.3 million years ago
Locality
Stonesfield, Oxfordshire, United Kingdom

References

  1. Huene, F. V. (1932). Die fossile Reptil-Ordnung Saurischia, ihre Entwicklung und Geschichte [The fossil reptile order Saurischia, their development and history]. Monographien zur Geologie und Palaeontologie, serie 1 4(1-2): 1-361. huene1932a
  2. Benson, R. B. J. (2008). New information on Stokesosaurus, a tyrannosauroid (Dinosauria: Theropoda) from North America and the United Kingdom. Journal of Vertebrate Paleontology 28(3): 732-750. doi:10.1671/0272-4634(2008)28[732:NIOSAT]2.0.CO;2

    Interpreted Iliosuchus as a possible tyrannosauroid based on its distinguishing ilia

    benson2008b
  3. Carrano, M. T.; Benson, R. B. J.; Sampson, S. D. (2012). The phylogeny of Tetanurae (Dinosauria: Theropoda). Journal of Systematic Palaeontology 10(2): 211-300. Informa UK Limited. doi:10.1080/14772019.2011.630927

    Gives the Taynton Limestone Formation for the Stonesfield material, superseding the Stonesfield Slate of the older literature.

    carrano2012a