Stenomylus

Stenomylus is an extinct genus of miniature camelid native to North America that is known from the Oligocene and Miocene epochs(23.1~16.3Ma). Its name is derived from the Greek στενός and μύλος.

Stenomylus

Mitternacht90 at English Wikipedia · Public Domain · via Wikipedia/Commons. 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
StenomyliniPBDB
Diet
browser, browserPBDB, for Camelidae
Life habit
ground dwellingPBDB, for Camelidae
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Artiodactyla

Time the record covers

At most 25 million years on record.

Every occurrence read is dated to somewhere between 29.5 Mya and 5.333 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Oligocene — about 1 of 26 occurrencesOligoceneMiocene — about 25 of 26 occurrencesMiocenePliocene — about 0 of 26 occurrences30–29 Mya — about 0.1 occurrences29–28 Mya — about 0.2 occurrences28–27 Mya — about 0.2 occurrences27–27 Mya — about 0.2 occurrences27–26 Mya — about 0.2 occurrences26–25 Mya — about 0.2 occurrences25–24 Mya — about 0.2 occurrences24–23 Mya — about 0.2 occurrences23–22 Mya — about 3 occurrences22–22 Mya — about 4 occurrences22–21 Mya — about 4 occurrences21–20 Mya — about 4 occurrences20–19 Mya — about 4 occurrences19–18 Mya — about 3 occurrences18–17 Mya — about 0.9 occurrences17–17 Mya — about 0.9 occurrences17–16 Mya — about 0.4 occurrences16–15 Mya — about 0.2 occurrences15–14 Mya — about 0.2 occurrences14–13 Mya — about 0.2 occurrences13–12 Mya — about 0.2 occurrences12–12 Mya — about 0.0 occurrences12–11 Mya — about 0.0 occurrences11–9.9 Mya — about 0.0 occurrences9.9–9.0 Mya — about 0.0 occurrences9.0–8.2 Mya — about 0.0 occurrences8.2–7.3 Mya — about 0.0 occurrences7.3–6.5 Mya — about 0.0 occurrences6.5–5.7 Mya — about 0.0 occurrences5.7–4.8 Mya — about 0.0 occurrences30 Mya4.8 Mya

26 occurrences of Stenomylus on record, most of them in the Miocene. 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

26 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

9 formations

Harrison — 42.00°N, 104.20°WHarrison — 43.00°N, 104.50°WHarrison — 42.40°N, 103.80°WMarsland — 42.10°N, 105.00°WMarsland — 42.00°N, 104.20°WZia Sand — 35.70°N, 107.00°WHector — 34.80°N, 117.00°WDelaho — 29.20°N, 103.20°WRenova — 46.00°N, 112.00°WRawls — 29.90°N, 104.20°WRunningwater — 42.80°N, 103.10°WBopesta — 35.19°N, 118.31°W

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The named rock units Stenomylus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 10 occurrences have no formation on record, which is common for older literature.

Stenomylus and its relatives

Miocene

Where Stenomylus and its relatives were recorded in the Miocene.

Found in the same rock

129 taxa

The Paleobiology Database records 26 sites for Stenomylus, 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

15 references

Each of the 26 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. 3 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 Stenomylus

Credit
Mitternacht90 at English Wikipedia
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Stenomylus 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 itStenomylini through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Peterson 1907