Micromomyidae

Micromomyidae (Micromomids) is a family of extinct plesiadapiform mammals that include some of the earliest known primates. The family includes five genera that lived from the Paleocene epoch into the early Eocene epoch.

Tinimomys graybulliensis Szalay, 1974, a relative of Micromomyidae — not Micromomyidae itself

Not Micromomyidae. This is Tinimomys graybulliensis Szalay, 1974, a relative — both are Micromomyidae.

Yale Peabody Museum · CC0 · via GBIF. 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
Sits inside
PrimatesPBDB
Diet
omnivorePBDB, for Primates
Life habit
arborealPBDB, for Primates
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At least 1.5 million years on record.

The record covers at least 57.5 Mya to 56 Mya. No occurrence read is dated outside 60.9 Mya to 48.07 Mya.

Paleocene — about 12 of 35 occurrencesPaleoceneEocene — about 23 of 35 occurrencesEocene61–60 Mya — about 0.9 occurrences60–60 Mya — about 0.9 occurrences60–60 Mya — about 0.9 occurrences60–59 Mya — about 0.9 occurrences59–59 Mya — about 0.9 occurrences59–58 Mya — about 0.9 occurrences58–58 Mya — about 0.9 occurrences58–57 Mya — about 1 occurrence57–57 Mya — about 2 occurrences57–56 Mya — about 2 occurrences56–56 Mya — about 2 occurrences56–55 Mya — about 2 occurrences55–55 Mya — about 2 occurrences55–54 Mya — about 2 occurrences54–54 Mya — about 2 occurrences54–54 Mya — about 2 occurrences54–53 Mya — about 2 occurrences53–53 Mya — about 2 occurrences53–52 Mya — about 2 occurrences52–52 Mya — about 2 occurrences52–51 Mya — about 2 occurrences51–51 Mya — about 0.8 occurrences51–50 Mya — about 0.2 occurrences50–50 Mya — about 0.2 occurrences50–49 Mya — about 0.2 occurrences49–49 Mya — about 0.2 occurrences49–48 Mya — about 0.2 occurrences48–48 Mya — about 0.2 occurrences57.5 Mya – 56 Mya61.4 Mya47.6 Mya

35 occurrences of Micromomyidae on record. 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

35 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

6 formations

Willwood — 44.78°N, 108.97°WWillwood — 43.95°N, 107.57°WWillwood — 44.00°N, 108.00°WWillwood — 44.50°N, 108.00°WWillwood — 44.80°N, 109.10°WWillwood — 44.30°N, 109.00°WWillwood — 44.65°N, 108.54°WWillwood — 44.65°N, 108.54°WFort Union — 44.91°N, 108.93°WFort Union — 41.92°N, 108.56°WFort Union — 44.30°N, 109.00°W"Wasatch" — 44.50°N, 108.00°W"Wasatch" — 44.00°N, 106.60°WRavenscrag — 49.06°N, 102.75°WPaskapoo — 52.35°N, 113.77°WWutu — 36.52°N, 118.92°E

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The named rock units Micromomyidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.

Found in the same rock

421 taxa

The Paleobiology Database records 28 sites for Micromomyidae, 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

21 references

Each of the 35 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. 9 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 content1

Picture of Tinimomys graybulliensis Szalay, 1974

Source
GBIF
Credit
Yale Peabody Museum
Licence
CC0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itPrimates through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Szalay 1974