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

Mantellisaurus atherfieldensis

Reptilia

Taxonomy
Iguanodon atherfieldensis was named by Hooley (1925). Its type specimen is BMNH R.5764, a skeleton, and it is a 3D body fossil. Its type locality is cliff fall near Atherfield (BMNH), which is in a Barremian/Aptian terrestrial shale in the Vectis Formation of the United Kingdom.

It was misspelled as Mantellisaurus atherfieldiensis by Hübner and Rauhut (2007), Kim et al. (2009), Gates et al. (2014) and Bell et al. (2019); it was recombined as Mantellisaurus atherfieldensis by Paul (2007), Sánchez-Hernández et al. (2007), Naish and Martill (2007), Contreras et al. (2007), Paul (2008), Luque et al. (2008), Naish and Martill (2008), Gasca et al. (2008), Ruiz-Omeñaca et al. (2008), Pascual-Arribas et al. (2009), Galton (2009), Carpenter and Ishida (2010), Prieto-Márquez (2010), Prieto-Márquez and Norell (2010), Pereda Suberbiola et al. (2010), McDonald et al. (2010), McDonald et al. (2010), McDonald et al. (2010), Norman (2010), Prieto-Márquez and Wagner (2010), Batten and Austen (2011), Barrett and Maidment (2011), Prieto-Márquez (2011), Pereda-Suberbiola et al. (2011), Wang et al. (2011), McDonald (2012), Godefroit et al. (2012), McDonald (2012), McDonald et al. (2012), Xing et al. (2012), Prieto-Marquez et al. (2012), Ramírez-Velasco et al. (2012), Norman (2013), Zheng et al. (2013), Santos et al. (2013), Pereda Suberbiola and Ruiz-Omeñaca (2013), Llandres Serrano et al. (2013), Norman (2014), Verdú et al. (2014), Sanz et al. (2014), Gasulla et al. (2014), Verdú et al. (2015), Prieto-Márquez et al. (2016), Verdú et al. (2016), Gasulla et al. (2016), Gasca et al. (2016), Becerra et al. (2016), Fuentes Vidarte et al. (2016), Godefroit et al. (2017), Bertozzo et al. (2017), Herne et al. (2018), Fondevilla et al. (2018), Gates et al. (2018), Herne et al. (2019), Ibiricu et al. (2019), Cruzado-Caballero et al. (2019), Dalla Vecchia (2020), Santos-Cubedo et al. (2021), Rotatori et al. (2022), Ji and Zhang (2022) and Bonsor et al. (2023).

Synonyms
Synonymy list
YearName and author
1850Heterosaurus neocomiensis Cornuel p. 703
1852Heterosaurus neocomiensis Gervais p. 253
1859Heterosaurus neocomiensis Gervais p. 448
1925Iguanodon atherfieldensis Hooley p. 3 figs. 1-10
1933Iguanodon atherfieldensis Swinton p. 67
1934Iguanodon atherfieldensis Swinton figs. Pl. V
1936Iguanodon atherfieldensis Swinton p. 215
1944Iguanodon atherfieldensis Young p. 197
1947Iguanodon atherfieldensis Lapparent p. 32
1964Iguanodon atherfieldensis Kuhn p. 11
1967Iguanodon atherfieldensis Lapparent p. 10
1968Iguanodon atherfieldensis Lapparent and Stchepinsky p. 1372
1970Iguanodon atherfieldensis Swinton pp. 210-211
1975Iguanodon atherfieldensis Taquet p. 507
1979Iguanodon atherfieldensis Jurcsak and Popa p. 53
1980Iguanodon atherfieldensis Buffetaut et al. p. 201
1981Iguanodon atherfieldensis Bartholomai and Molnar p. 343
1987Iguanodon atherfieldensis Casanovas et al. p. 102
1987Iguanodon atherfieldensis Norman p. 165
1989Iguanodon atherfieldensis Frances and Sanz p. 139
1989Iguanodon atherfieldensis Hutt et al. p. 144
1989Iguanodon atherfieldensis Weishampel and Bjork p. 64
1990Iguanodon atherfieldensis Norman and Weishampel p. 530
1991Iguanodon atherfieldensis Weishampel et al. p. 202 fig. 8
1992Iguanodon atherfieldensis Martin and Buffetaut p. 68
1992Iguanodon atherfieldensis Sanz et al. p. 49
1994Iguanodon atherfieldensis Galton p. 258
1996Iguanodon atherfieldensis Hutt et al. p. 637
1996Iguanodon atherfieldensis Molnar p. 639
1997Iguanodon atherfieldensis Buffetaut p. 214
1997Iguanodon atherfieldensis Forster p. 360
1997Iguanodon atherfieldensis Norman p. 784
1998Iguanodon atherfieldensis Godefroit et al. p. 47
1998Iguanodon atherfieldensis Ruiz-Omeñaca et al. p. 275
1999Iguanodon atherfieldensis Cuenca-Bescós et al. p. 248
1999Iguanodon atherfieldensis Pereda Suberbiola et al. p. 271
1999Iguanodon atherfieldensis Wright p. 215
2001Iguanodon atherfieldensis Lockley and Wright p. 431
2001Iguanodon atherfieldensis Naish and Martill p. 119
2001Iguanodon atherfieldensis Wang and Xu p. 1671
2003Iguanodon atherfieldensis Godefroit and Knoll p. 5
2003Iguanodon atherfieldensis Posmosanu p. 432
2003Iguanodon atherfieldensis Ruiz-Omeñaca and Canudo p. 275
2004Iguanodon atherfieldensis Diedrich p. 215
2004Iguanodon atherfieldensis Norman p. 416
2005Iguanodon atherfieldensis You et al. p. 786
2006Iguanodon atherfieldensis Pereda Suberbiola et al. p. 227
2006Iguanodon atherfieldensis Prieto-Márquez et al. p. 938
2006Iguanodon atherfieldensis Torcida Fernández-Baldor p. 116
2007Mantellisaurus atherfieldensis Contreras et al. p. 53
2007Mantellisaurus atherfieldiensis Hübner and Rauhut p. 373
2007Mantellisaurus atherfieldensis Naish and Martill p. 493
2007Mantellisaurus atherfieldensis Paul p. 74
2007Mantellisaurus atherfieldensis Sánchez-Hernández et al. p. 206
2008Mantellisaurus atherfieldensis Gasca et al. p. 128
2008Mantellisaurus atherfieldensis Luque et al. p. 80
2008Mantellisaurus atherfieldensis Naish and Martill p. 618
2008Dollodon bampingi Paul p. 200
2008Mantellisaurus atherfieldensis Paul p. 200
2008Mantellisaurus atherfieldensis Ruiz-Omeñaca et al. p. 65
2009Mantellisaurus atherfieldensis Galton p. 213
2009Iguanodon atherfieldensis Kim et al. p. 1394
2009Mantellisaurus atherfieldensis Pascual-Arribas et al. p. 121
2010Mantellisaurus atherfieldensis Carpenter and Ishida p. 151
2010Mantellisaurus atherfieldensis McDonald et al. p. 2
2010Mantellisaurus atherfieldensis McDonald et al. p. 33 fig. 39
2010Dollodon bampingi McDonald et al. p. 808 fig. 10
2010Mantellisaurus atherfieldensis McDonald et al. p. 808 fig. 10
2010Mantellisaurus atherfieldensis Norman p. 64
2010Mantellisaurus atherfieldensis Pereda Suberbiola et al. p. 64
2010Mantellisaurus atherfieldensis Prieto-Márquez p. 441
2010Mantellisaurus atherfieldensis Prieto-Márquez and Norell p. 15
2010Mantellisaurus atherfieldensis Prieto-Márquez and Wagner p. 1241
2011Mantellisaurus atherfieldensis Barrett and Maidment p. 404
2011Mantellisaurus atherfieldensis Batten and Austen p. 46
2011Mantellisaurus atherfieldensis Pereda-Suberbiola et al. p. 556
2011Mantellisaurus atherfieldensis Prieto-Márquez p. 63
2011Dollodon bampingi Wang et al. p. 138
2011Mantellisaurus atherfieldensis Wang et al. p. 138
2012Mantellisaurus atherfieldensis Godefroit et al. p. 540
2012Mantellisaurus atherfieldensis McDonald p. 2
2012Mantellisaurus atherfieldensis McDonald et al. p. 61
2012Mantellodon carpenteri Paul
2012Mantellisaurus atherfieldensis Prieto-Marquez et al. p. 23
2012Mantellisaurus atherfieldensis Ramírez-Velasco et al. p. 390
2012Mantellisaurus atherfieldensis Xing et al. p. 166
2013Mantellisaurus atherfieldensis Llandres Serrano et al. p. 573
2013Mantellisaurus atherfieldensis Norman p. 397–399
2013Mantellisaurus atherfieldensis Pereda Suberbiola and Ruiz-Omeñaca p. 14
2013Mantellisaurus atherfieldensis Santos et al. p. 165
2013Mantellisaurus atherfieldensis Zheng et al.
2014Mantellisaurus atherfieldensis Gasulla et al. p. 19
2014Iguanodon atherfieldensis Gates et al. p. 161
2014Mantellisaurus atherfieldensis Norman p. 17
2014Mantellisaurus atherfieldensis Sanz et al. p. 76
2014Mantellisaurus atherfieldensis Verdú et al. p. 121
2015Mantellisaurus atherfieldensis Verdú et al. p. 254
2016Mantellisaurus atherfieldensis Becerra et al. p. 565
2016Mantellisaurus atherfieldensis Fuentes Vidarte et al. p. 414
2016Mantellisaurus atherfieldensis Gasca et al. p. 72
2016Mantellisaurus atherfieldensis Gasulla et al. p. 75
2016Mantellisaurus atherfieldensis Prieto-Márquez et al. p. 14
2016Mantellisaurus atherfieldensis Verdú et al. p. 143
2017Mantellisaurus atherfieldensis Bertozzo et al. p. 20
2017Mantellisaurus atherfieldensis Godefroit et al. p. 6
2018Mantellisaurus atherfieldensis Fondevilla et al. p. 9
2018Mantellisaurus atherfieldensis Gates et al. p. 5
2018Mantellisaurus atherfieldensis Herne et al. p. 42
2019Iguanodon atherfieldensis Bell et al. p. 4
2019Mantellisaurus atherfieldensis Cruzado-Caballero et al. p. 218
2019Mantellisaurus atherfieldensis Herne et al. p. 557
2019Mantellisaurus atherfieldensis Ibiricu et al. p. 280
2020Mantellisaurus atherfieldensis Dalla Vecchia p. 594
2021Mantellisaurus atherfieldensis Santos-Cubedo et al. p. 14
2022Mantellisaurus atherfieldensis Ji and Zhang p. 6
2022Mantellisaurus atherfieldensis Rotatori et al. p. 132
2023Mantellisaurus atherfieldensis Bonsor et al. p. 5

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
RankNameAuthor
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Ornithischia()
—Genasauria
—Cerapoda
—Ornithopoda()
—Clypeodonta
—Iguanodontia()
genusMantellisaurus
speciesatherfieldensis()

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

show all | hide all
Invalid names: Dollodon bampingi Paul 2008 [synonym], Heterosaurus neocomiensis Cornuel 1850 [synonym], Mantellodon carpenteri Paul 2012 [synonym]
Diagnosis
ReferenceDiagnosis
G. S. Paul 2007Adults possibly modest sized, 7 m, mass 1+ tonnes. Overall lightly constructed. Accessory palpebral absent. Quadrate shaft curved. Maximum tooth positions 23 in maxilla, 20 in dentary. Neural spines of dorsals, sacrals, and caudals tall. Posterior dorsal centra not compressed anteroposteriorly. Six true sacrals. Scapula narrow and constricted at middle of blade. Acromion process placed distally and directed ventrally. Coracoid small relative to scapula. Forelimb 55% of hindlim length. Deltopectoral crest of humerus fairly large and incipiently hatchet-shaped. Manual spike and other unguals small. Prepubis deep. Femoral fourth trochanter not spiked (Table 4.1).
G. S. Paul 2008Probably modest sized as adults. Overall lightly constructed. Premaxillary tip to anterior orbital rim/latter to paraoccipital process tip length ratio w1.25; dentary pre-coronoid process length/minimum depth ratio under 5. Rostrum subtriangular in lateral view. Maxillary process of premaxilla shallow. Dorsal apex of maxilla set posteriorly. Antorbital fossa and fenestra reduced. Lacrimal short, does not contact nasal. Lateral temporal fenestra moderate in size. Posterior portion of jugal short. Quadratojugal short. Quadrate tall, transversely narrow, shaft curved, lateral foramen set high, dorso-posterior buttress small. Diastema absent. Tooth positions 23 in maxilla, 22 in dentary. Dorso-sacral/hindlimb length ratio w1. Posterior dorsal centra not compressed antero-posteriorly. 7 fused sacrals. Scapula blade narrow and constricted at middle of blade, base rather narrow, acromion process placed rather dorsally and directed anteriorly. Forelimb w50% of hindlimb length. Deltopectoral crest of humerus distally placed, fairly large and incipiently hatchet shaped. Manual phalanx 1 of digit I absent, pollex spike and other unguals moderate in size. Pelvis *relatively large. Main body of ilium deep. Prepubic process of pubis deep. Femoral shaft curved. Metatarsal I present, II short. Distal phalanges of toes *not strongly abbreviated.
G. S. Paul 2008 (Dollodon bampingi)Probably modest sized as adults at 6+ m and 1+ tonnes. Overall lightly constructed. Premaxillary tip to anterior orbital rim/latter to paraoccipital process tip length ratio ~1.6 via elongation of posterior nasal, maxillary process of premaxilla and maxilla; dentary pre-coronoid process length/minimum depth ratio over 5. Maxillary process of premaxilla shallow. Dorsal apex of maxilla set posteriorly. Antorbital fossa and fenestra reduced. Lacrimal short, does not contact nasal. Accessory palpebral absent. Posterior border of occiput straight. Lateral temporal fenestra small. Posterior portion of jugal short. Quadratojugal short. Quadrate short, transversely narrow, shaft curved, lateral foramen set high, dorso-posterior buttress small. Diastema short. Dorso-sacral/hindlimb length ratio w1.2. Posterior dorsal centra not compressed antero-posteriorly. Neural spines of dorsals, sacrals and caudals form moderately tall sail. 7 fused sacrals. Scapula blade narrow and constricted at middle of blade, base rather narrow, acromion process placed ventrally and directed distally. Forelimb w55% of hindlimb length. Deltopectoral crest of humerus distally placed, fairly large and incipiently hatchet shaped. Manus narrow. Manual phalanx 1 of digit I present, pollex spike and other unguals moderate in size. Main body of ilium shallow. Prepubic process of pubis deep. Femoral shaft moderately curved. Metatarsal I present, II long.
A. T. McDonald 2012Basal hadrosauriform distinguished from all other iguanodontians by the following unique combination of characters: maxillary process of jugal tapers towards lacrimal and maxillary facets, with sinuous ventral and dorsal margins (based upon NHMUK R11521 and MIWG 6344); dorsal margin of scapula straight; caudal end of scapula expanded into paddle- like shape, with dorsal and ventral margins that diverge towards the caudal margin; dorsal margin of ilium straight; thickened and laterally-bulging everted rim along dorsal margin of ilium dorsal to ischial peduncle; break in slope along the dorsal margin of the postacetabular process; shaft of ischium straight (based upon IRSNB 1551).
J. A. Bonsor et al. 2023Mantellisaurus atherfieldensis differs from all other known iguanodontians in possessing the following autapomorphies: (1) a tabulate lacrimal process of the maxilla, situated posterior to the ascending process in lateral view; (2) a pronounced, hook-shaped acromion process with an acute internal angle; and (3) a prominent dorsal ridge on the anterior end of the nasal process of the premaxilla.