Presbymys
No picture of Presbymys was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Presbymys, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- CylindrodontidaePBDB
- Diet
- herbivorePBDB, for Rodentia
- Life habit
- ground dwellingPBDB, for Rodentia
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At most 8.9 million years on record.
Every occurrence read is dated to somewhere between 45.9 Mya and 37 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Presbymys on record, most of them in the Eocene. 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
2 occurrences- Eocene100%
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
2 formations
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The named rock units Presbymys has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Presbymys and its relatives
EoceneWhere Presbymys and its relatives were recorded in the Eocene.
Found in the same rock
34 taxa- Simimys simplex2 sites
- Amynodontopsis bodei1 site
- Anguidae1 site
- Anura1 site
- Boavus occidentalis1 site
- Boidae1 site
- Chumashius balchi1 site
- Cylindrodontidae1 site
- Didelphidae1 site
- Duchesneodus uintensis1 site
- Eotylopus1 site
- Griphomys alecer1 site
- Hyaenodon venturae1 site
- Hyaenodon vetus1 site
- Hyracodontidae1 site
- Ischyromyidae1 site
- Lacertilia1 site
- Leptoreodon stocki1 site
- Metanoiamys1 site
- Microparamys1 site
- Microparamys tricus1 site
- Pareumys1 site
- Pareumys milleri1 site
- Peradectes californicus1 site
The Paleobiology Database records 2 sites for Presbymys, 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
2 references- Late Eocene mammals from the Sweetwater Formation, San Diego County, California1
- Summary of known occurrences of terrestrial vertebrates from Eocene strata of southern California1
Each of the 2 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content0
No picture of Presbymys was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Presbymys, or no answer at all. This entry cannot say which.
No 3D scan of Presbymys was found in MorphoSource and Sketchfab.
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 itCylindrodontidae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Wilson 1949