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Debruijnia kostakii

Osteichthyes - Rodentia - Muridae

Discussion

I dedicate this species to the late Constantinos D. Theocharopoulos (Kostaki for friends) who showed admirable character and stamina when we collected the Karydia material in the rain.

Taxonomy
Debruijnia kostakii was named by de Bruijn (2017). Its type specimen is UU 1014, a tooth (right m1), and it is a 3D body fossil. Its type locality is Karyidia, which is in a MN 4 terrestrial horizon in Greece.

Sister species lacking formal opinion data
D. arpati

Synonymy list
YearName and author
2017Debruijnia kostakii de Bruijn

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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
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
RankNameAuthor
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—EuarchontogliresMurphy et al. 2001
—GliriformesWyss and Meng 1996
—Glires()
—Simplicidentata()
orderRodentiaBowdich 1821
infraorderMyodontaSchaub 1958
superfamilyMuroideaIlliger 1811
—Eumuroida
familyMuridaeIlliger 1811
subfamilySpalacinaeThomas 1896
genusDebruijniaÜnay 1996
specieskostakii

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.

†Debruijnia kostakii de Bruijn 2017
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Diagnosis
ReferenceDiagnosis
H. de Bruijn 2017Most teeth of Debruijnia kostakii are somewhat larger than those of P. sinapensis Sarıca & Sen, 2003 (MN10), P. canakkalensis Ünay, 1981(MN7/8) and P. primitivus Ünay,1978 (MN7/8). Their dental pattern is in many respects intermediate between the type species of the genus D. arpatti and the oldest known Pliospalax: P. marmarensis Ünay, 1990. The degree of lophodonty and hypsodonty in D. kostakii is similar as in Pliospalax, but its cheek teeth differ in retaining plesiomorph details such as the presence of the anterior arm of the protocone in the M1 and the free-ending posterior arm of the hypoconid in the m1. In these respects D. kostakii it is closer to Debruijnia than to Pliospalax.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: herbivoref
Diet 2: insectivoref
Reproduction: viviparoussubc
Created: 2005-06-08 10:11:09
Modified: 2005-08-26 13:15:11
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Carroll 1988, Nowak 1991, Ji et al. 2002, Hendy et al. 2009, Lillegraven 1979

Age range: MN 4 or 16.90000 to 15.98000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
MN 416.9 - 15.98Greece (Thrace) Debruijnia sp. (type locality: 69435)