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Elongatoolithus jianchangensis

Osteichthyes - Elongatoolithidae

Taxonomy
Elongatoolithus jianchangensis was named by Fang et al. (2007). It is considered to be a form taxon. Its type specimen is 05HD-5 (05HD-2-2), an egg, and it is a 3D body fossil. Its type locality is Hongshan Reservoir-Danyan Survey section (bed 53), which is in a Coniacian/Santonian terrestrial sandstone/siltstone in the Zhaoying Formation of China.

Synonymy list
YearName and author
2007Elongatoolithus jianchangensis Fang et al. p. 138 fig. 11
2012Elongatoolithus jianchangensis Wang et al. p. 408

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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
RankNameAuthor
subclassEureptilia()
Romeriida
Diapsida()
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Theropoda()
familyElongatoolithidae
genusElongatoolithus
speciesjianchangensis

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.

Elongatoolithus jianchangensis Fang et al. 2007
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Diagnosis
ReferenceDiagnosis
X. Fang et al. 2007Small, elongated egg, 10 cm long, 4 cm wide, and 4 cm high. Shell surface is ornamented, 0.7 mm thick. The papillae are conical, with fetlocks and distinct radial striations. The papillae comprise one-third of the shell thickness and are arranged with distinct gaps. The prismatic layer is dense, with coarse, straight growth lines. Most stomata extend through the shell
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: solitaryo
Environment: terrestrialo
Locomotion: actively mobileo
Life habit: ground dwellingo
Diet: carnivoreo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2004-12-14 12:50:08
Modified: 2004-12-14 14:50:08
Source: o = order
References: Marsh 1875, Kiessling 2004

Age range: base of the Coniacian to the top of the Santonian or 89.80000 to 83.60000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Coniacian - Santonian89.8 - 83.6China (Henan) Elongatoolithus jianchangensis (275513 275517 type locality: 275524 275525 275526)