Simimys
No picture of Simimys 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 Simimys, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- SimimyidaePBDB
- Diet
- herbivorePBDB, for Rodentia
- Life habit
- ground dwellingPBDB, for Rodentia
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At least 2.7 million years on record.
The record covers at least 39.7 Mya to 37 Mya. No occurrence read is dated outside 45.9 Mya to 33.9 Mya.
42 occurrences of Simimys 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
42 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
9 formations
- Mission Valley Formation15
- Sespe Formation12
- Santiago Formation8
- Sweetwater Formation2
- Stadium Formation1
- Pomerado Formation1
Loading coastlines…
The named rock units Simimys has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Simimys and its relatives
EoceneWhere Simimys and its relatives were recorded in the Eocene.
Found in the same rock
254 taxa- Sespedectes singularis24 sites
- Pareumys17 sites
- Proterixoides davisi17 sites
- Peradectes californicus14 sites
- Microparamys woodi11 sites
- Dyseolemur pacificus10 sites
- Griphomys alecer9 sites
- Uintasorex7 sites
- Anguidae6 sites
- Boidae6 sites
- Protoreodon walshi6 sites
- Testudines6 sites
- Trionychidae6 sites
- Batodonoides powayensis5 sites
- Centetodon5 sites
- Griphomys5 sites
- Lacertilia5 sites
- Leptoreodon stocki5 sites
- Metanoiamys5 sites
- Ourayia5 sites
- Protylopus stocki5 sites
- Amynodon advenus4 sites
- Brontotheriidae4 sites
- Eohaplomys tradux4 sites
The Paleobiology Database records 40 sites for Simimys, 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- Eocene mammal faunas of San Diego County12
- Summary of known occurrences of terrestrial vertebrates from Eocene strata of southern California6
- New specimens of Metanoiamys, Pauromys, and Simimys (Rodentia: Myomorpha) from the Uintan (middle Eocene) of San Diego County, California, and comments on the relationships of selected Paleogene Myomorpha5
- Middle Eocene mammal faunas of San Diego County, California3
- Preliminary Report on a Paleontologic Investigation of the Lower and Middle Members, Sespe Formation, Simi Valley Landfill, Ventura County, California3
- Cricetine-like rodents from the Sespe Eocene of California2
- New records of Epihippus (Equidae) and a rhinocerotoid perissodactyl from the middle Eocene Santiago Formation of southern California1
- Rodents and a Marsupial (Mammalia) From the Duchesnean (Eocene) Turtle Basin Local Fauna, Sevier Plateau, Utah1
- New Late Uintan to Early Hemingfordian Land Mammal Assemblages from the Undifferentiated Sespe and Vaqueros Formations, Orange County, and from the Sespe and Equivalent Marine Formations in Los Angeles, Santa Barbara, and Ventura Counties, Southern California1
- Synonymies and reidentifications of North American fossil mammals1
- New Uintan and Duchesnean (Middle and Late Eocene) Rodents from the Sespe Formation, Simi Valley, California1
- Late Eocene mammals from the Sweetwater Formation, San Diego County, California1
Each of the 42 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 content0
No picture of Simimys 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 Simimys, or no answer at all. This entry cannot say which.
No 3D scan of Simimys was found in Sketchfab.
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 itSimimyidae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Wilson 1935