Florentiamyidae

Florentiamyidae is a family of extinct rodents from North America. They are part of the Superfamily Geomyoidea according to R. L. Carroll 1988. They are known to have existed 33.3 to 15.97 mya. They are known from the Miocene of United States, Harrisonian of United States, Arikareean of United States, and Oligocene of Canada. Four fossil specimens from the Arikareean were obtained at the John Day Fossil Beds in Oregon.

No picture of Florentiamyidae 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 Florentiamyidae, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
GeomyoideaPBDB
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 17 million years on record.

The record covers at least 33.9 Mya to 16.3 Mya. No occurrence read is dated outside 37 Mya to 12.5 Mya.

Eocene — about 2 of 79 occurrencesEoceneOligocene — about 49 of 79 occurrencesOligoceneMiocene — about 28 of 79 occurrencesMiocene38–37 Mya — about 0.2 occurrences37–36 Mya — about 0.6 occurrences36–35 Mya — about 0.6 occurrences35–34 Mya — about 0.6 occurrences34–33 Mya — about 2 occurrences33–32 Mya — about 2 occurrences32–32 Mya — about 2 occurrences32–31 Mya — about 4 occurrences31–30 Mya — about 4 occurrences30–29 Mya — about 4 occurrences29–28 Mya — about 4 occurrences28–27 Mya — about 4 occurrences27–26 Mya — about 4 occurrences26–26 Mya — about 4 occurrences26–25 Mya — about 4 occurrences25–24 Mya — about 5 occurrences24–23 Mya — about 5 occurrences23–22 Mya — about 4 occurrences22–21 Mya — about 4 occurrences21–21 Mya — about 4 occurrences21–20 Mya — about 4 occurrences20–19 Mya — about 4 occurrences19–18 Mya — about 3 occurrences18–17 Mya — about 2 occurrences17–16 Mya — about 2 occurrences16–15 Mya — about 0.7 occurrences15–15 Mya — about 0.7 occurrences15–14 Mya — about 0.7 occurrences14–13 Mya — about 0.7 occurrences13–12 Mya — about 0.3 occurrences33.9 Mya16.3 Mya37.5 Mya12 Mya

79 occurrences of Florentiamyidae on record, most of them in the Oligocene. 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

79 occurrences

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

16 formations

Brule — 40.80°N, 103.10°WBrule — 42.40°N, 103.80°WBrule — 41.70°N, 103.10°WBrule — 43.20°N, 103.20°WBrule — 43.76°N, 101.93°WSharps — 43.30°N, 102.50°WHarrison — 42.40°N, 103.80°WHarrison — 42.80°N, 100.80°WJohn Day — 44.70°N, 119.63°WGering — 43.00°N, 104.50°WBatesland — 43.20°N, 101.80°WBatesland — 43.13°N, 101.87°WRunningwater — 42.20°N, 103.10°WRunningwater — 42.75°N, 102.00°WValentine — 42.70°N, 100.00°WValentine — 42.81°N, 100.05°WValentine — 42.78°N, 100.03°WCypress Hills — 49.60°N, 108.80°WCypress Hills — 49.80°N, 109.00°WMonroe Creek — 43.30°N, 102.50°WCoffee Mill Butte Beds — 42.55°N, 103.35°WChadron — 42.75°N, 103.65°WReunion Creek Beds — 42.88°N, 101.35°WWildcat Hills Beds — 41.70°N, 103.67°WSespe — 33.59°N, 117.61°WCatahoula — 31.66°N, 88.66°W

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The named rock units Florentiamyidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 22 occurrences have no formation on record, which is common for older literature.

Florentiamyidae and its relatives

Oligocene

Where Florentiamyidae and its relatives were recorded in the Oligocene.

Found in the same rock

734 taxa

The Paleobiology Database records 60 sites for Florentiamyidae, 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

33 references

Each of the 79 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. 21 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 Florentiamyidae 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 Florentiamyidae, or no answer at all. This entry cannot say which.

No 3D scan of Florentiamyidae 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.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itGeomyoidea through timeFormations of the OligoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Wood 1936)