PBDB Taxon

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

Helodermoides

Osteichthyes - Anguidae

Taxonomy

Helodermoides was named by Douglass (1903). It is not extant.

It was synonymized subjectively with Glyptosaurus by Hay (1930), McDowell and Bogert (1954).

It was assigned to Reptilia by Douglass (1903); to Glyptosaurini by Estes (1983); to Anguidae by Carroll (1988), Maddox and Wall (1998); and to Glyptosaurinae by Sullivan (1986), Smith (2006).

Species

H. tuberculatus (syn. Glyptosaurus montanus, Glyptosaurus giganteus)

Synonymy list

Year	Name and author
1903	Helodermoides Douglass p. 160
1983	Helodermoides Estes
1986	Helodermoides Sullivan p. 110
1988	Helodermoides Carroll
1998	Helodermoides Maddox and Wall p. 5
2006	Helodermoides Smith p. 28

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
class	Osteichthyes
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha

Rank	Name	Author
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
—	Sauropsida
class	Reptilia
—	Squamata	()
—	Anguimorpha	(Fürbringer 1900)
—	Anguiformes	(Bonaparte 1831)
superfamily	Anguioidea	Fitzinger 1826
family	Anguidae	Gray 1825
subfamily	Glyptosaurinae	Marsh 1872
genus	Helodermoides

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.

G. †Helodermoides Douglass 1903

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†Helodermoides tuberculatus Douglass 1903

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Invalid names: Glyptosaurus giganteus Gilmore 1928 [synonym], Glyptosaurus montanus Douglass 1908 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

phosphaticsubp

Environment:

terrestrialsubf

Locomotion:

actively mobilec

Life habit:

ground dwellingsubf

Diet:

insectivoref

Diet 2:

carnivoref

Created:

2005-09-23 14:40:23

Modified:

2005-09-23 16:40:23

Source: subf = subfamily, f = family, c = class, subp = subphylum

References: Head 2005, Carroll 1988, Hendy et al. 2009, Behler and King 1979

Age range: base of the Uintan to the top of the Orellan or 45.90000 to 31.80000 Ma

Collections (33 total)

Time interval	Ma	Country or state	Original ID and collection number
Uintan	45.9 - 39.7	USA (Utah)	H. sp. (16654 222799)
Chadronian	37.0 - 33.9	USA (Nebraska)	H. tuberculatus (181603 181605 181614)
Chadronian	37.0 - 33.9	USA (Montana)	H. tuberculatus (17010 181606 181607) H. tuberculatus, Glyptosaurus montanus (16990)
Chadronian	37.0 - 33.9	USA (Wyoming)	H. tuberculatus (16920 16961 16963 16964 16971 181578 181579 181597 181598 181601 181602 181604 181608 181612 181613 232899 232921)
Chadronian	37.0 - 33.9	USA (North Dakota)	H. sp. (16991)
Middle Chadronian - Late/Upper Chadronian	37.0 - 33.9	USA (Wyoming)	H. sp. (27223)
Orellan	33.9 - 31.8	USA (Nebraska)	Glyptosaurus giganteus (180112) H. tuberculatus (17203 179967)
Orellan	33.9 - 31.8	USA (Wyoming)	Glyptosaurus giganteus (180388) H. tuberculatus (125185)