PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Isohyaenodon zadoki

Osteichthyes - Hyaenodonta

Taxonomy

Metapterodon zadoki was named by Savage (1965). Its type specimen is BMNH M. 19094, a maxilla (ight maxillary fragment with M1+2), and it is a 3D body fossil. Its type locality is Rusinga Island, which is in a Burdigalian terrestrial horizon in Kenya.

It was synonymized subjectively with Metapterodon kaiseri by Dashzeveg (1985); it was recombined as Isohyaenodon zadoki by Morales et al. (1998), Morales et al. (2007).

Sister species lacking formal opinion data

Hyaenodon matthewsi

Entered

by J. Alroy on 2007-04-07; modified by M. Uhen on 2013-10-27

Synonyms

Isohyaenodon matthewi was named by Savage (1956).

It was synonymized subjectively with Isohyaenodon zadoki by Morales et al. (1998).

Synonymy list

Year	Name and author
1956	Isohyaenodon matthewi Savage
1965	Metapterodon zadoki Savage p. 270 figs. PI. 4, fig. 2; Text-fig. 29
1998	Isohyaenodon zadoki Morales et al. p. 636
2007	Isohyaenodon zadoki Morales et al. p. 72

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
class	Osteichthyes
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
subclass	Synapsida
—	Therapsida	()
infraorder	Cynodontia	()

Rank	Name	Author
—	Mammaliamorpha
—	Mammaliaformes
class	Mammalia
—	Cladotheria
—	Zatheria
subclass	Tribosphenida	()
subclass	Theria
—	Eutheria	()
—	Placentalia
—	Boreoeutheria
—	Laurasiatheria
—	Scrotifera
—	Ferae	()
—	Pancarnivora
order	Hyaenodonta	()
superfamily	Hyainailouroidea
—	Hyainailouridae	Solé et al. 2015
—	Hyainailourinae	(Pilgrim 1932)
genus	Isohyaenodon	()
species	zadoki	()

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.

†Isohyaenodon zadoki Savage 1965

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Invalid names: Isohyaenodon matthewi Savage 1956 [synonym]

Diagnosis

Reference	Diagnosis
R. J. G. Savage 1965	Slightly larger than the type species; uppermolarsrobustwithstrong shear, parastyle absent from M1+2 protocone very reduced on M1+2.

Measurements

No measurements are available

Composition:

phosphaticsubp

Environment:

terrestrialsubc

Locomotion:

actively mobilec

Life habit:

scansorialsubc

Diet:

insectivoresubc

Reproduction:

viviparoussubc

Created:

2005-09-06 20:43:42

Modified:

2005-09-06 22:44:32

Source: subc = subclass, c = class, subp = subphylum

References: Ji et al. 2002, Lillegraven 1979, Hendy et al. 2009, Carroll 1988

Age range: Burdigalian or 20.45000 to 15.98000 Ma

Collections: one only

Time interval	Ma	Country or state	Original ID and collection number
Burdigalian	20.45 - 15.98	Kenya	Metapterodon zadoki (21725)