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Seuku emlongi

Mammalia - Perissodactyla

Taxonomy
Behemotops emlongi was named by Domning et al. (1986). Its type specimen is USNM 244033, a mandible, and it is a 3D body fossil. Its type locality is Elephant Rock, SE of, which is in a Chattian marine siltstone in the Yaquina Formation of Oregon.

It was synonymized subjectively with Behemotops proteus by Ray et al. (1994), Domning (1996) and Domning (2008); it was recombined as Seuku emlongi by Beatty and Cockburn (2015) and Matsui and Tsuihiji (2019).

Synonymy list
YearName and author
1986Behemotops emlongi Domning et al. p. 23 figs. Fig.12f, 16-18
2015Seuku emlongi Beatty and Cockburn p. 11
2019Seuku emlongi Matsui and Tsuihiji

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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
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
RankNameAuthor
—Mammaliaformes
classMammalia
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Panperissodactyla
superorderPerissodactylamorpha
orderPerissodactyla()
orderDesmostylia
genusSeuku
speciesemlongi()

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.

†Seuku emlongi Domning et al. 1986
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Diagnosis
ReferenceDiagnosis
B. L. Beatty and T. C. Cockburn 2015Dental formula is ?.1.2?.3/ ?.1.2?.3. Differs from Cornwallius, Paleoparadoxia, and Desmos- tylus in: molar cusps not in longitudinal rows nor closely appressed to each other. Differs from Cornwallius and Desmos- tylus in: molars that are brachydont and with cusps that retain spaces between them; molars retain labial and lingual cingula; molars, specifically M3, lack styles/stylids between the main cusps/cuspids. Differs from Behemotops and Cornwallius in: broad, flat mandibular symphysis that includes an enlarged canine tusk. Differs from all other desmostylians in: enlarged lower tusk almost rectangular in cross-section.
Measurements
No measurements are available
Composition: hydroxyapatiteo
Ontogeny: modification of partso
Environment: coastalo
Locomotion: actively mobileo
Life habit: amphibiouso
Diet: herbivoreo
Reproduction: viviparouso
Created: 2005-09-11 17:03:02
Modified: 2019-05-28 17:19:55
Source: o = order
Reference: Domning et al. 1986

Age range: Chattian or 28.10000 to 23.03000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Chattian28.1 - 23.03USA (Oregon) Behemotops emlongi (type locality: 58892)