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Dendroolithus xichuanensis

Osteichthyes - Phaceloolithidae

Taxonomy
Dendroolithus xichuanensis was named by Zhao and Zhao (1998). It is considered to be a form taxon. Its type specimen is IVPP V11570 (field no. 7708), an egg, and it is a 3D body fossil. Its type locality is Zhaojiagou, Dashiqiao (IVPP Loc. 7708), which is in a Coniacian terrestrial horizon in the Gaogou Formation of China.

Synonymy list
YearName and author
1998Dendroolithus xichuanensis Zhao and Zhao pp. 286, 293 figs. Pl. 2, fig. 1
2002Dendroolithus xichuanensis Zhou and Feng p. 70
2008Dendroolithus xichuanensis Jin p. 53
2009Dendroolithus xichuanensis Liang et al. p. 1591
2025Dendroolithus xichuanensis Chen et al.

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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
RankNameAuthor
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
familyPhaceloolithidae
genusDendroolithus
speciesxichuanensis

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.

Dendroolithus xichuanensis Zhao and Zhao 1998
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Diagnosis
ReferenceDiagnosis
H. Zhao and Z. Zhao 1998Incomplete shell units loosely arranged. Continuous interlocking layer of the column taking up 1/4 eggshell thickness. The point of the first split of the columnar layer closely near its cone. Pore canal largely expanded.