PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Camptosaurus aphanoecetes

Reptilia

Taxonomy

Camptosaurus aphanoecetes was named by Carpenter and Wilson (2008). Its type specimen is CM 11337, a partial skeleton, and it is a 3D body fossil. Its type locality is Dinosaur National Monument Quarry (CM), which is in a Tithonian coarse channel fill sandstone in the Morrison Formation of Utah.

It was recombined as Uteodon aphanoecetes by McDonald (2011), Tweet et al. (2012), McDonald et al. (2012), McDonald (2012), Zheng et al. (2013), Ibiricu et al. (2014), Xu et al. (2018), Madzia et al. (2018), Sánchez-Fenollosa et al. (2021), Rotatori et al. (2022).

Year	Name and author
2008	Camptosaurus aphanoecetes Carpenter and Wilson p. 232 figs. 3-34
2008	Camptosaurus aphanoecetes Ruiz-Omeñaca et al. p. 61
2009	Camptosaurus aphanoecetes Galton p. 215
2011	Uteodon aphanoecetes McDonald pp. 56 - 60 figs. 6, 7B
2011	Camptosaurus aphanoecetes Wang et al. p. 140
2012	Uteodon aphanoecetes McDonald p. 2
2012	Uteodon aphanoecetes McDonald et al. p. 2
2012	Uteodon aphanoecetes Tweet et al. p. 321
2013	Uteodon aphanoecetes Zheng et al.
2014	Uteodon aphanoecetes Ibiricu et al. p. 404
2016	Camptosaurus aphanocetes Fuentes Vidarte et al. p. 436
2017	Camptosaurus aphanoecetes Mocho et al. p. 8
2018	Camptosaurus aphanoecetes Carpenter and Galton p. 179
2018	Uteodon aphanoecetes Madzia et al. p. 971
2018	Camptosaurus aphanoecetes Tweet and Santucci p. 713
2018	Uteodon aphanoecetes Xu et al. p. 562
2019	Camptosaurus aphanoecetes Ibiricu et al. p. 279
2020	Camptosaurus aphanoecetes Dieudonné et al.
2021	Uteodon aphanoecetes Sánchez-Fenollosa et al. p. 54
2022	Uteodon aphanoecetes Rotatori et al. p. 132
2022	Camptosaurus aphanoecetes Sánchez-Fenollosa et al. p. 71

Diagnosis

Reference	Diagnosis
K. Carpenter and Y. Wilson 2008	Differs from C. dispar in the following: mandibular symphysis short and more vertically oriented, coronoid process relatively taller; postzygapophyses of axis extend well beyond posterior face of centrum, axis neural spine above the postzygapophyses laterally compressed, not expanded laterally forming deep pocket; cervical centra shorter compared to height, especially in mid-cervicals; mid- and posterior cervicals amphiplatyan to weakly plani-concave, not opisthocoelous; cervical 7 centrum wedge-shaped in lateral view; neural arches of posterior cervicals very tall; anterior dorsal centra shorter compared to height; anterior caudal centra not angled posteroventrally, mid-caudal centrum with small chevron facet; mid-caudal vertebra neural spine long and slender, with postzygapophysis located high on spine; scapular blade arched in profile, not straight, and distal end steeply sloped; deltopectoral crest a low triangle, not prominent; ilium with more vertical pubic peduncle, dorsal rim arched, prepubic process proportionally longer, postpubic process lower, with rounded distal end; pubis with posterior projecting iliac peduncle forming large acetabular notch; ischium with small distal foot.
A. T. McDonald 2011	Basal styracosternan distinguished by a single autapomorphy: occipital condyle projects farther ventrally than the basal tubera (Fig. 7). Also distinguished from all other iguanodontians except Cumnoria prestwichii by the following unique combination of characters: scapula with acromion process that is convex along its cranial margin (Fig. 3B), convex dorsal margin of scapula (Fig. 3C), convex dorsal margin of ilium, dorsal mar- gin of ilium thickens mediolaterally towards M. iliocaudalis platform, postacetabular process of ilium tapers to a point with break in slope along dorsal margin (Fig. 6A), distal end of ischium forms cranially expanded boot.
K. Carpenter and P. M. Galton 2018	It differs from C. dispar in the proportionally long, low cervical centra, scapular blade more curved, shallow ilium with a sharply bent preacetabular process, and a straight ischium shaft.

Measurements

No measurements are available