Isohyaenodon

Isohyaenodon; Temporal range: Early Miocene
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Hyaenodonta
Family:	Hyainailouridae
Subfamily:	Hyainailourinae
Genus:	Isohyaenodon; Savage, 1965
Species
	I. andrewsi Savage, 1965 (type); I. zadoki (Savage, 1965);

Isohyaenodon is an extinct genus of hyaenodont mammal of the family Hyainailouridae. Remains are known from early Miocene deposits in Kenya, East Africa.

Description

Isohyaenodon is distinguished from Hyaenodon in having more robust molars, lower molars with a subequal paraconid and protoconid, and upper molars with a more well-developed protocone.[1]

Taxonomy

Isohyaenodon was considered possibly the same genus as Leakitherium from the same region by Van Valen (1967),[2] but subsequent studies have rejected this assumption.[3][4]

Isohyaenodon pilgrimi Savage, 1965 was formerly assigned to this genus, but has been renamed Exiguodon.[4]

References

Morales, J., Pickford, M., Soria, D. (1998): A new creodont Metapterodon stromeri nov. sp. (Hyaenodontidae, Mammalia) from the early Miocene of Langental (Sperrgebiet, Namibia). – Comptes Rendus de l’Académie des Sciences, Paris, Série Sciences de la Terre et des Planètes, 327: 633–638.
Valen, L. van (1967): New Paleocene insectivores and insectivore classiﬁ cation. – Bulletin of the American Museum of Natural History, 135: 217–284.
Solé F, Amson E, Borths M, Vidalenc D, Morlo M, Bastl K (2015) A New Large Hyainailourine from the Bartonian of Europe and Its Bearings on the Evolution and Ecology of Massive Hyaenodonts (Mammalia). PLoS ONE 10(9): e0135698. https://doi.org/10.1371/journal.pone.0135698
Jorge Morales; Martin Pickford (2017). "New hyaenodonts (Ferae, Mammalia) from the Early Miocene of Napak (Uganda), Koru (Kenya) and Grillental (Namibia)" (PDF). Fossil Imprint. 73 (3–4): 332–359. doi:10.1515/if-2017-0019.

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[1] Morales, J., Pickford, M., Soria, D. (1998): A new creodont Metapterodon stromeri nov. sp. (Hyaenodontidae, Mammalia) from the early Miocene of Langental (Sperrgebiet, Namibia). – Comptes Rendus de l’Académie des Sciences, Paris, Série Sciences de la Terre et des Planètes, 327: 633–638.

[2] Valen, L. van (1967): New Paleocene insectivores and insectivore classiﬁ cation. – Bulletin of the American Museum of Natural History, 135: 217–284.

[3] Solé F, Amson E, Borths M, Vidalenc D, Morlo M, Bastl K (2015) A New Large Hyainailourine from the Bartonian of Europe and Its Bearings on the Evolution and Ecology of Massive Hyaenodonts (Mammalia). PLoS ONE 10(9): e0135698. https://doi.org/10.1371/journal.pone.0135698

[MP17-4] Jorge Morales; Martin Pickford (2017). "New hyaenodonts (Ferae, Mammalia) from the Early Miocene of Napak (Uganda), Koru (Kenya) and Grillental (Namibia)" (PDF). Fossil Imprint. 73 (3–4): 332–359. doi:10.1515/if-2017-0019.