Simimys simplex
No picture of Simimys simplex was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Simimys simplex, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- SimimysPBDB
- 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.
33 occurrences of Simimys simplex 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
33 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
6 formations
- Mission Valley Formation15
- Sespe Formation8
- Santiago Formation6
- Sweetwater Formation2
- Stadium Formation1
- Pomerado Formation1
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The named rock units Simimys simplex has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Simimys simplex and its relatives
EoceneWhere Simimys simplex and its relatives were recorded in the Eocene.
Found in the same rock
165 taxa- Sespedectes singularis23 sites
- Proterixoides davisi17 sites
- Pareumys15 sites
- Peradectes californicus14 sites
- Microparamys woodi11 sites
- Dyseolemur pacificus10 sites
- Griphomys alecer8 sites
- Uintasorex7 sites
- Anguidae6 sites
- Boidae6 sites
- Protoreodon walshi6 sites
- Trionychidae6 sites
- Batodonoides powayensis5 sites
- Centetodon5 sites
- Lacertilia5 sites
- Leptoreodon stocki5 sites
- Ourayia5 sites
- Protylopus stocki5 sites
- Testudines5 sites
- Amynodon advenus4 sites
- Eohaplomys tradux4 sites
- Herpetotherium knighti4 sites
- Hesperaletes borineyi4 sites
- Metanoiamys4 sites
The Paleobiology Database records 33 sites for Simimys simplex, 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
9 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, California2
- Cricetine-like rodents from the Sespe Eocene of California2
- 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
- Late Eocene mammals from the Sweetwater Formation, San Diego County, California1
- Biostratigraphy of Uintan and Duchesnean land mammal assemblages from the Middle Member of the Sespe Formation, Simi Valley, California1
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. 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 simplex was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Simimys simplex, or no answer at all. This entry cannot say which.
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itSimimys through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Wilson 1935)