Hypolagus fontinalis

via iDigBio · via iDigBio. 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
- HypolagusPBDB
- Diet
- grazer, browserPBDB, for Leporidae
- Life habit
- ground dwellingPBDB, for Leporidae
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At least 3.1 million years on record.
The record covers at least 12.5 Mya to 9.4 Mya. No occurrence read is dated outside 23.04 Mya to 1.4 Mya.
33 occurrences of Hypolagus fontinalis 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
33 occurrences- Miocene97%
- Pliocene2%
- Pleistoceneunder 1%
These 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
10 formations
- Barstow Formation13
- Valentine Formation · Ogallala Group6
- Ash Hollow Formation2
- Juntura Formation1
- Truckee Formation1
- Esmeralda Formation1
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The named rock units Hypolagus fontinalis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.
Hypolagus fontinalis and its relatives
MioceneWhere Hypolagus fontinalis and its relatives were recorded in the Miocene.
Found in the same rock
462 taxa- Cupidinimus halli12 sites
- Copemys longidens11 sites
- Cupidinimus lindsayi11 sites
- Limnoecus tricuspis11 sites
- Perognathus furlongi11 sites
- Mojavemys lophatus10 sites
- Perognathus minutus10 sites
- Chiroptera7 sites
- Copemys barstowensis7 sites
- Tamias ateles7 sites
- Camelidae6 sites
- Copemys russelli6 sites
- Copemys tenuis5 sites
- Epicyon saevus5 sites
- Hippotherium5 sites
- Miospermophilus5 sites
- Phelosaccomys5 sites
- Teleoceras5 sites
- Copemys esmeraldensis4 sites
- Copemys pagei4 sites
- Eucastor tortus4 sites
- Hypolagus parviplicatus4 sites
- Lanthanotherium sawini4 sites
- Leptocyon vafer4 sites
The Paleobiology Database records 33 sites for Hypolagus fontinalis, 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- The Archaeolaginae (Mammalia, Lagomorpha) of North America, Excluding Archaeolagus and Panolax14
- A New Pronotolagus (Lagomorpha: Leporidae) and Other Leporids from the Valentine Railway Quarries (Barstovian, Nebraska), and the Archaeolagine-Leporine Transition3
- Later Tertiary Leporidae of North America2
- Lagomorpha and Rodentia of the early Hemphillian (late Miocene) Mulholland localities, Contra Costa County, California, USA1
- The geology and paleontology of Ashfall Fossil Beds, a late Miocene (Clarendonian) mass-death assemblage, Antelope County and adjacent Knox County, Nebraska, USA1
- Synonymies and reidentifications of North American fossil mammals1
- The Pipe Creek Sinkhole biota, a diverse late Tertiary continental fossil assemblage from Grant County, Indiana1
- Kelly, 19951
- John Day Basin paleontology field trip guide and road log: Society of Vertebrate Paleontology1
- Geology and Paleontology of the Santa Fe Group, Southwestern Albuquerque Basin, Valencia County, New Mexico1
- Vertebrate biostratigraphy of the Ogallala Group in Nebraska1
- Sedimentary Facies and Biochronology of the Upper Tertiary Ogallala Group, Blanco and Yellow House Canyons, Texas Panhandle1
Each of the 33 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 Hypolagus fontinalis
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
CT scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Hypolagus sp. · UCMP:V:37543
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itHypolagus through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Dawson 1958