PBDB Taxon

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

Anodontosaurus inceptus

Reptilia - Ankylosauridae

Taxonomy

Anodontosaurus inceptus was named by Penkalski (2018). Its type specimen is TMP 1997.132.1, a partial skeleton, and it is a 3D body fossil. Its type locality is Hilda, South Saskatchewan River (RTMP), which is in a Campanian channel sandstone in the Dinosaur Park Formation of Canada.

Synonymy list

Year	Name and author
2018	Anodontosaurus inceptus Penkalski p. 266

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
—	Sauropsida
class	Reptilia
subclass	Eureptilia	()
—	Romeriida

Rank	Name	Author
—	Diapsida	()
—	Archosauromorpha	(Huene 1946)
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
informal	Avemetatarsalia
—	Ornithodira
—	Dinosauromorpha
—	Dinosauriformes
—	Dinosauria	()
—	Ornithischia	()
—	Genasauria
—	Thyreophora	()
—	Ankylosauria	()
family	Ankylosauridae
subfamily	Ankylosaurinae	Nopcsa 1918
tribe	Euoplocephalini
genus	Anodontosaurus
species	inceptus

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.

†Anodontosaurus inceptus Penkalski 2018

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Diagnosis

Reference	Diagnosis
P. Penkalski 2018	Differs from A. lambei in having broader-based squamosal horns, a fan-shaped nasal plate, in lacking the four symmetric postnasal scales, in having a more prominent coronoid process, and possibly in the triangular unguals. Differs from Dyoplosaurus in having less pronounced doming of the frontal skull roof and better defined postfrontal and nuchal scales. Differs from other euoplocephalins in having relatively flat, subcircular medial h.r.1 osteoderms with a low caudal prominence and in having complex pyramidal laterals on h.r.1.

Measurements

No measurements are available

Composition:

hydroxyapatiteo

Entire body:

yeso

Adult length:

10 to < 100o

Adult width:

1.0 to < 10o

Adult height:

1.0 to < 10o

Architecture:

compact or denseo

Ontogeny:

accretion, modification of partso

Grouping:

gregariouso

Environment:

terrestrialo

Locomotion:

actively mobileo

Life habit:

ground dwellingo

Diet:

herbivoreo

Reproduction:

oviparouso

Dispersal:

direct/internalo

Dispersal 2:

mobileo

Created:

2004-12-14 12:50:52

Modified:

2004-12-14 14:50:52

Source: o = order

Reference: Marsh 1875

Age range: Late/Upper Campanian or 83.50000 to 70.60000 Ma

Collections (2 total)

Time interval	Ma	Country or state	Original ID and collection number
Late/Upper Campanian	83.5 - 70.6	Canada (Alberta)	Anodontosaurus lambei (type locality: 155221)
Late/Upper Campanian - Early/Lower Maastrichtian	83.5 - 66.0	Canada (Alberta)	Ankylosauria indet. (155224)