Nimravus
Nimravus is an extinct genus of "false" saber-toothed cat that lived in North America and Eurasia during the Eocene and Oligocene epochs 35.3—27.1 mya, existing for approximately 7.9 million years. Not closely related to true saber-toothed cats, they evolved a similar form through parallel evolution. Fossils have been uncovered from western U.S. from Oregon to Southern California and Nebraska, and also from Eurasia from France to Mongolia.

Edward Drinker Cope · 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
- NimraviniPBDB
- Diet
- carnivorePBDB, for Nimravidae
- Life habit
- ground dwellingPBDB, for Nimravidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At least 6.6 million years on record.
The record covers at least 33.9 Mya to 27.3 Mya. No occurrence read is dated outside 37.71 Mya to 18.5 Mya.
36 occurrences of Nimravus on record, most of them in the Oligocene. 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
36 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
11 formations
- John Day Formation5
- Hsanda Gol Formation4
- Brule Formation2
- Sharps Formation2
- Ergilin Dzo Formation2
- Gering Formation1
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The named rock units Nimravus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 15 occurrences have no formation on record, which is common for older literature.
Nimravus and its relatives
OligoceneWhere Nimravus and its relatives were recorded in the Oligocene.
Found in the same rock
479 taxa- Anguini6 sites
- Coluber cadurci6 sites
- Dinailurictis bonali6 sites
- Hyaenodon leptorhynchus6 sites
- Miohippus6 sites
- Eporeodon occidentalis5 sites
- Hyaenodon pervagus5 sites
- Palaeosciurus goti5 sites
- Agriochoerus guyotianus4 sites
- Archaeotherium4 sites
- Butseloglis tenuis4 sites
- Capacikala gradatus4 sites
- Cordylidae4 sites
- Daphoenus4 sites
- Desmatolagus gobiensis4 sites
- Glamys priscus4 sites
- Hyaenodon4 sites
- Hypertragulus hesperius4 sites
- Issiodoromys medius4 sites
- Necrosaurus4 sites
- Percymygale vauclusensis4 sites
- Plesispermophilus angustidens4 sites
- Pseudoltinomys major4 sites
- Ronzotherium4 sites
The Paleobiology Database records 36 sites for Nimravus, 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
17 references- Valbro : un nouveau site à vertébrés de l’Oligocène inférieur (MP22) de France (Quercy). I – Contexte géologique ; Mammalia : Rodentia, Hyaenodontida, Carnivora [Valbro: A new site of vertebrates from the early Oligocene (MP22) of France (Quercy). I – Geological context; Mammalia: Rodentia, Hyaenodontida, Carnivora]6
- Oligocene stratigraphy across the Eocene and Miocene boundaries in the Valley of Lakes (Mongolia)4
- Revised chronostratigraphy and biostratigraphy of the John Day Formation (Turtle Cove and Kimberly Members), Oregon, with implications for updated calibration of the Arikareean North American land mammal age4
- Review of the Miocene Wounded Knee faunas of southwestern South Dakota4
- Le Garouillas et les sites contemporains (Oligocène, MP 25) des phosphorites du Quercy (Lot, Tarn-et-Garonne, France) et leurs faunes de vertébrés. 7. Carnivores3
- Systematic review of European Nimravinae (Mammalia, Carnivora, Nimravidae) and the phylogenetic relationships of Palaeogene Nimravidae2
- Some Carnivorous Mammals from the Paleogene of Eastern Gobi Desert, Mongolia, and the application of Oligocene carnivores to stratigraphic correlation2
- The species of Nimravus (Carnivora, Felidae)2
- Aubenas-les-Alpes, a forgotten Oligocene mammalian site in Provence (S-E France). Part I – Carnivora, Perissodactyla and Microflora1
- A new late Early Oligocene vertebrate fauna from Moissac, South-West France1
- Magnetostratigraphy and paleontology of Wagner Quarry, (late Oligocene, early Arikareean) basal Arikaree Group of the Pine Ridge region, Dawes County, Nebraska1
- Eocene nimravid carnivorans from Thailand1
Each of the 36 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. 5 further references are not listed. 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 Nimravus
- Source
- Wikipedia/Commons
- Credit
- Edward Drinker Cope
- Licence
- Public Domain
- Commercial use
- the licence allows it
Laser scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Nimravus brachyops · LACM:9384
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Nimravus”
- 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 itNimravini through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Cope 1879