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Yezosaurus mikasaensis

Osteichthyes - Tyrannosauridae

Taxonomy
Yezosaurus mikasaensis was named by Caldwell et al. (2008). Its type specimen is MCM.M0009, a partial skull (Partial articulated skull, preserved in three dimensions, missing anterior portion of snout, and skull and braincase elements posterior to the orbit), and it is a 3D body fossil. Its type locality is Katsurazawa River dam, which is in a Santonian/Campanian offshore sandstone in the Kashima Formation of Japan.

It was recombined as Taniwhasaurus mikasaensis by Caldwell et al. (2008), Driscoll et al. (2019).

Synonymy list
YearName and author
1977Yezosaurus mikasaensis Muramoto and Obata p. 2
2008Taniwhasaurus mikasaensis Caldwell et al.
2008Yezosaurus mikasaensis Caldwell et al. p. 2
2019Taniwhasaurus mikasaensis Driscoll 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
classReptilia
subclassEureptilia()
—Romeriida
RankNameAuthor
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Saurischia()
—Theropoda()
—Neotheropoda
—AverostraPaul 2002
—Tetanurae
—Coelurosauria()
superfamilyTyrannosauroidea
familyTyrannosauridae
genusYezosaurusMuramoto and Obata 1977
speciesmikasaensis

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.

†Yezosaurus mikasaensis Caldwell et al. 2008
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Diagnosis
No diagnoses are available
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: carnivoresubo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2009-01-03 20:39:15
Modified: 2009-01-03 22:39:15
Source: subo = suborder, o = order
References: Marsh 1875, Kiessling 2004, Benton 1983

Age range: base of the Late/Upper Santonian to the top of the Early/Lower Campanian or 85.70000 to 72.20000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Late/Upper Santonian - Early/Lower Campanian85.7 - 72.2Japan (Hokkaido) Yezosaurus mikasaensis (type locality: 97297)