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Edmontonia longiceps

Osteichthyes - Nodosauridae

Taxonomy
Edmontonia longiceps was named by Sternberg (1928). Its type specimen is NMC 8531, a partial skeleton, and it is a 3D body fossil. Its type locality is 7 miles northwest of Morrin (20 ft level) [NMC], which is in a Maastrichtian terrestrial horizon in the Horseshoe Canyon Formation of Canada. It was considered monophyletic by Vickaryous et al. (2004).

It was recombined as Panoplosaurus longiceps by Coombs (1979).

Synonyms
Synonymy list
YearName and author
1928Edmontonia longiceps Sternberg p. 93
1930Edmontonia longiceps Hay p. 237
1930Edmontonia longiceps Russell p. 151
1933Edmontonia longiceps Russell p. 129
1933Edmontonia longiceps Sternberg p. 232
1940Edmontonia longiceps Russell p. 26
1964Edmontonia longiceps Kuhn p. 46
1964Edmontonia longiceps Russell p. 15
1965Edmontonia longiceps Simmons p. 69
1966Edmontonia longiceps Russell p. 24
1967Edmontonia longiceps Russell and Chamney p. 11
1970Edmontonia longiceps Bodily p. 37
1975Edmontonia longiceps Langston p. 1606
1976Edmontonia longiceps Langston p. 126
1979Panoplosaurus longiceps Coombs, Jr. p. 666
1980Edmontonia longiceps Wolberg p. 50
1988Denversaurus schlessmani Bakker p. 1 figs. 1-2
1988Edmontonia longiceps Bakker p. 18
1990Edmontonia longiceps Carpenter p. 286
1990Edmontonia longiceps Coombs, Jr. p. 275
1996Edmontonia longiceps Coombs, Jr. and Deméré p. 319
1997Edmontonia longiceps Eberth p. 201
2000Edmontonia longiceps Currie p. 277
2000Edmontonia longiceps Ford p. 174
2000Denversaurus schlessmani Ford p. 175
2001Edmontonia longiceps Carpenter p. 457
2001Edmontonia longiceps Ford and Kirkland p. 247
2003Edmontonia longiceps Garcia and Pereda-Suberbiola p. 161
2004Edmontonia longiceps Vickaryous et al. p. 365
2006Edmontonia longiceps Vickaryous p. 1011
2007Edmontonia longiceps Lü et al. p. 889 fig. 1
2008Edmontonia longiceps Burns p. 1106
2009Edmontonia longiceps Parsons and Parsons p. 736 fig. 18
2011Edmontonia longiceps Stanford et al. p. 916
2013Denversaurus schlessmani Kirkland et al. p. 7
2013Edmontonia longiceps Kirkland et al. p. 7
2013Edmontonia longiceps Leahey and Salisbury p. 251
2016Edmontonia longiceps Kineer et al. p. 76
2016Edmontonia schlessmani Kineer et al. p. 76
2017Edmontonia longiceps Arbour and Mallon p. 771
2021Edmontonia longiceps Breeden et al. p. 21

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
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
—Thyreophora()
—Ankylosauria()
familyNodosauridae
genusEdmontonia
specieslongiceps

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.

†Edmontonia longiceps Sternberg 1928
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Invalid names: Denversaurus schlessmani Bakker 1988 [synonym]
Diagnosis
ReferenceDiagnosis
K. Carpenter 1990No postorbital prominence; palate narrow; tooth rows moderately divergent. Synsacrum robust compared to E. rugosidens. Lateral body spines smaller than in E. rugosidens.
Measurements
No measurements are available
Composition: hydroxyapatiteo
Entire body: yesg
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: 2005-08-25 06:03:50
Modified: 2005-08-25 08:03:50
Source: g = genus, o = order
References: Marsh 1875, Peczkis 1995, Kiessling 2004

Age range: base of the Middle Campanian to the top of the Late/Upper Maastrichtian or 83.60000 to 66.00000 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Middle Campanian - Late/Upper Campanian83.6 - 72.2USA (Montana) Edmontonia longiceps (14446)
Early/Lower Maastrichtian72.2 - 66.0Canada (Alberta) Edmontonia longiceps (14502 type locality: 79692)
Late/Upper Maastrichtian72.2 - 66.0USA (South Dakota) Edmontonia sp. (47628)