Adelphailurus

A-del-fay-el-ur-us.
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Benjamin Gutierrez

Vertebrate Paleontologist

Benjamin Gutierrez is a leading expert on dinosaurs, particularly the mighty theropods. His fieldwork in South America has uncovered new species and provided insights into dinosaur social structures.

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Name

Adelphailurus.

Phonetic

A-del-fay-el-ur-us.

Named By

C.‭ ‬W.‭ ‬Hibbard‭ ‬-‭ ‬1934.‭

Classification

Chordata,‭ ‬Mammalia,‭ ‬Carnivora,‭ ‬Felidae,‭ ‬Machairodontinae,‭ ‬Metailurini.

Diet

Carnivore.

Species

A.‭ ‬kansensis‭

Size

About‭ ‬60-90‭ ‬high at the shoulder,‭ ‬and around‭ ‬2-2.4‭ ‬meters long.

Known locations

USA,‭ ‬Arizona‭ ‬-‭ ‬Big Sandy Formation,‭ ‬Quiburis Formation,‭ ‬Kansas‭ ‬-‭ ‬Edson‭ & ‬Oklahoma‭ ‬-‭ ‬Ogallala Formation.

Time Period

Mid Tortonina to the Messinian of the Miocene.

Fossil representation

Partial remains of several individuals.

In Depth

       One of the lesser known machairodonts,‭ ‬the placement of Adelphailurus within the machairodontinae has been questioned with speculation that it may be a false sabre-tooth.‭ ‬Adelphailurus also had a pair of second premolar teeth,‭ ‬a primitive feature that harks back to the early days of felid evolution.‭ ‬Although fossil remains of Adelphailurus are usually very incomplete,‭ ‬they have been noted as being very similar to the modern Puma concolor‭ (‬a.k.a.‭ ‬cougar/mountain lion‭) ‬in both physical proportion and size.‭ ‬This in turn has led to speculation that back in the late Miocene,‭ ‬Adelphailurus may have had a similar ecological niche as today’s Puma concolor.

Further Reading

-‭ ‬Two new genera of Felidae from the middle Pliocene of Kansas.‭ ‬Transactions of the Kansas Academy of Sciences‭ ‬37:239-255.‭ ‬-‭ ‬C.‭ ‬W.‭ ‬Hibbard‭ ‬-‭ ‬1934.‭ -‭ ‬Vertebrate Paleontology and Evolution.‭ ‬-‭ ‬W.‭ ‬H.‭ ‬Freeman and Company,‭ ‬New York‭ ‬1-698.‭ ‬-‭ ‬R.‭ ‬L.‭ ‬Carroll‭ ‬-‭ ‬1988. -‭ ‬Evolution of Tertiary Mammals of North America‭ ‬1:236-242‭ ‬-‭ ‬L.‭ ‬D.‭ ‬Martin‭ ( ‬C.‭ ‬M.‭ ‬Janis,‭ ‬K.‭ ‬M.‭ ‬Scott,‭ ‬and L.‭ ‬L.‭ ‬Jacobs‭ (‬eds.‭)) ‬-‭ ‬1998.

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