Ondatra
Searched as Ondatra zibethicus spatulatus. The Paleobiology Database treats Ondatra as the accepted name.

David Menke · Public Domain · via Wikidata/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- Also called
- muskratPBDB
- Sits inside
- OndatriniPBDB
- Diet
- herbivorePBDB, for Rodentia
- Life habit
- amphibiousPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At most 12 thousand years on record.
The one occurrence read is dated to somewhere between 11.7 ka and 0 Mya, which is a dating window rather than a span.
1 occurrence of Ondatra on record, most of them in the Holocene. The Paleobiology Database records this as a living group. 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
1 occurrences- Holocene100%
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.
Ondatra and its relatives
HoloceneWhere Ondatra and its relatives were recorded in the Holocene.
Found in the same rock
1,307 taxa- Equus54 sites
- Odocoileus virginianus44 sites
- Microtus pennsylvanicus40 sites
- Castor canadensis39 sites
- Peromyscus30 sites
- Procyon lotor30 sites
- Sylvilagus30 sites
- Blarina brevicauda29 sites
- Erethizon dorsatum27 sites
- Sorex cinereus27 sites
- Marmota monax26 sites
- Ursus americanus26 sites
- Neotoma floridana25 sites
- Platygonus25 sites
- Spermophilus tridecemlineatus25 sites
- Camelops24 sites
- Canis latrans24 sites
- Neotoma24 sites
- Paramylodon harlani24 sites
- Synaptomys cooperi23 sites
- Geomys22 sites
- Tamias striatus22 sites
- Hemiauchenia21 sites
- Sorex21 sites
The Paleobiology Database records 171 sites for Ondatra, 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
1 referenceEach of the 1 occurrence 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content2

Picture of Ondatra
- Source
- Wikidata/Commons
- Credit
- David Menke
- Licence
- Public Domain
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
Smithsonian Open Access and MorphoSource were 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 itOndatrini through timeFormations of the HoloceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Link 1795