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Haplocanthosaurus delfsi

Reptilia

Taxonomy
Haplocanthosaurus delfsi was named by McIntosh and Williams (1988). Its type specimen is CMNH 10380, a partial skeleton, and it is a 3D body fossil. Its type locality is Delfs Quarry, Garden Park (CMNH), which is in a Kimmeridgian/Tithonian crevasse splay mudstone/sandstone in the Morrison Formation of Colorado.

Synonymy list
YearName and author
1988Haplocanthosaurus delfsi McIntosh and Williams
1990Haplocanthosaurus delfsi Bakker p. 1
1990Haplocanthosaurus delfsi McIntosh p. 378
1997Haplocanthosaurus delfsi Carpenter p. 92
1998Haplocanthosaurus delfsi Wilson and Sereno p. 19
1999Haplocanthosaurus delfsi Carpenter p. 3
2004Haplocanthosaurus delfsi Upchurch et al. p. 266
2005Haplocanthosaurus delfsi Gallina and Apesteguía p. 158
2006Haplocanthosaurus delfsi Chure et al. p. 236
2006Haplocanthosaurus delfsi Mateus p. 231
2009Haplocanthosaurus delfsi Zhang et al. p. 218
2012Haplocanthosaurus delfsi Decker p. 8
2014Haplocanthosaurus delfsi Foster and Wedel p. 197
2015Haplocanthosaurus delfsi Manning et al. p. 5
2019Haplocanthosaurus delfsi Tschopp et al. p. 12
2023Haplocanthosaurus delfsi Curtice et al. p. 80

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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()
—Saurischia()
—Sauropoda()
—Gravisauria
—Eusauropoda
—Neosauropoda
—Diplodocoidea()
genusHaplocanthosaurus
speciesdelfsi

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.

†Haplocanthosaurus delfsi McIntosh and Williams 1988
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: hydroxyapatiteinfrao
Entire body: yesg
Adult length: 10 to < 100infrao
Adult width: 10 to < 100infrao
Adult height: 10 to < 100infrao
Thickness: thickinfrao
Architecture: compact or denseinfrao
Form: sphericalinfrao
Ontogeny: accretion, modification of partsinfrao
Grouping: gregariousinfrao
Environment: terrestrialinfrao
Locomotion: actively mobileinfrao
Life habit: ground dwellinginfrao
Diet: herbivoreinfrao
Reproduction: oviparousinfrao
Dispersal: direct/internalinfrao
Dispersal 2: mobileinfrao
Created: 2005-08-24 13:35:49
Modified: 2005-08-24 15:35:49
Source: g = genus, infrao = infraorder
References: Peczkis 1995, Marsh 1875

Age range: base of the Late/Upper Kimmeridgian to the top of the Early/Lower Tithonian or 155.70000 to 145.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Late/Upper Kimmeridgian - Early/Lower Tithonian155.7 - 145.0USA (Colorado) Haplocanthosaurus sp. (type locality: 48155)