Adelphailurus
Adelphailurus is an extinct genus of metailurin machairodontine (saber-toothed) cat that inhabited western North America during the late Miocene and early Pliocene. It is monotypic, containing only the species Adelphailurus kansensis.

Noles1984 · Public Domain · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- MetailuriniPBDB
- Diet
- carnivorePBDB
- Life habit
- scansorialPBDB, for Felidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At most 4.7 million years on record.
Every occurrence read is dated to somewhere between 9.4 Mya and 4.7 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
5 occurrences of Adelphailurus on record, most of them in the Miocene. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
5 occurrencesThese are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
3 formations
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The named rock units Adelphailurus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Adelphailurus and its relatives
MioceneWhere Adelphailurus and its relatives were recorded in the Miocene.
Found in the same rock
90 taxa- Eucyon davisi5 sites
- Dinohippus leidyanus4 sites
- Pleiolama vera4 sites
- Agriotherium3 sites
- Amphimachairodus coloradensis3 sites
- Borophagus secundus3 sites
- Eucyon ferox3 sites
- Pliotaxidea nevadensis3 sites
- Vulpes stenognathus3 sites
- Alforjas2 sites
- Alforjas taylori2 sites
- Antilocapridae2 sites
- Astrohippus ansae2 sites
- Borophagus parvus2 sites
- Dipodomys kansensis2 sites
- Gomphotheriidae2 sites
- Hypolagus tedfordi2 sites
- Hypolagus vetus2 sites
- Mammut2 sites
- Martes2 sites
- Megatylopus matthewi2 sites
- Mylagaulidae2 sites
- Neohipparion eurystyle2 sites
- Plesiogulo lindsayi2 sites
The Paleobiology Database records 5 sites for Adelphailurus, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
5 references- Stop 16: Late Hemphillian faunas of the Texas and Oklahoma panhandles1
- The Fossil Fauna From Lost And Found Quarries (Hemphillian: Latest Miocene), Wallace County, Kansas1
- Magnetic polarity stratigraphy of the Mio-Pliocene mammal-bearing Big Sandy Formation of western Arizona1
- Rodents of the Hemphillian age Redington local fauna, San Pedro Valley, Arizona1
- Two new genera of Felidae from the middle Pliocene of Kansas1
Each of the 5 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content2
Picture of Adelphailurus
- Source
- Wikipedia/Commons
- Credit
- Noles1984
- Licence
- Public Domain
- Commercial use
- the licence allows it
Laser scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Adelphailurus kansensis · ypm:vp:YPM VP 014162
The description on this site
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itMetailurini through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Hibbard 1934