Eumops perotis

The western mastiff bat, also known as the western bonneted bat, the greater mastiff bat, or the greater bonneted bat, is a member of the free-tailed bat family, Molossidae. It is found in the Western United States, Mexico, and South America. This species is the largest bat native to North America, and some of its distinguishing characteristics are its large ears, wings, and forearms. The subspecies E. p. californicus is a species of concern as identified by the U.S. Fish and Wildlife Service. The range of this subspecies is principally southwest desert regions of the United States, along the border with Mexico; however, the range extends as far north on the Pacific coast as Alameda County, California.

Eumops perotis

M.Siders, Grand Staircase-Esclanate National Monument, Bureau of Land Management · 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
Also called
western mastiff batPBDB
Sits inside
EumopsPBDB
Diet
insectivorePBDB, for Molossidae
Life habit
volantPBDB, for Chiroptera
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Chiroptera
Mass
53.5 gWikidata

Time the record covers

At least 1.3 million years on record.

The record covers at least 1.4 Mya to 11.7 ka. No occurrence read is dated outside 4.7 Mya to 0 Mya.

Pliocene — about 1 of 5 occurrencesPliocenePleistocene — about 1 of 5 occurrencesPleistoceneHolocene — about 3 of 5 occurrences4.9–4.7 Mya — about 0.0 occurrences4.7–4.5 Mya — about 0.1 occurrences4.5–4.3 Mya — about 0.1 occurrences4.3–4.2 Mya — about 0.1 occurrences4.2–4.0 Mya — about 0.1 occurrences4.0–3.8 Mya — about 0.1 occurrences3.8–3.6 Mya — about 0.1 occurrences3.6–3.5 Mya — about 0.1 occurrences3.5–3.3 Mya — about 0.1 occurrences3.3–3.1 Mya — about 0.1 occurrences3.1–2.9 Mya — about 0.1 occurrences2.9–2.8 Mya — about 0.1 occurrences2.8–2.6 Mya — about 0.1 occurrences2.6–2.4 Mya — about 0.1 occurrences2.4–2.3 Mya — about 0.1 occurrences2.3–2.1 Mya — about 0.1 occurrences2.1–1.9 Mya — about 0.1 occurrences1.9–1.7 Mya — about 0.1 occurrences1.7–1.6 Mya — about 0.1 occurrences1.6–1.4 Mya — about 0.0 occurrences173 ka–0 Mya — about 4 occurrences1.4 Mya11.7 ka5.2 Mya0 Mya

5 occurrences of Eumops perotis on record. The Paleobiology Database records this as a living group. 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

5 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

1 formation

Nuapua — 20.75°S, 63.07°WNuapua — 20.87°S, 63.07°W

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The named rock units Eumops perotis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Found in the same rock

109 taxa

The Paleobiology Database records 5 sites for Eumops perotis, 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

5 references

Each of the 5 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 content1

Picture of Eumops perotis

Credit
M.Siders, Grand Staircase-Esclanate National Monument, Bureau of Land Management
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Eumops perotis 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 itEumops through timeThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Schinz 1821)