Mixodectidae

Mixodectidae is an extinct family of placental mammals from the Paleocene of North America. They are usually considered euarchontans.

Mixodectidae

Andrey Atuchin · CC BY 4.0 · 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
MixodectoideaPBDB
Diet
insectivorePBDB, for Theria
Life habit
scansorialPBDB, for Eutheria
Motility
actively mobilePBDB, for Osteichthyes
Environment
terrestrialPBDB, for Eutheria

Time the record covers

At least 2.5 million years on record.

The record covers at least 63.4 Mya to 60.9 Mya. No occurrence read is dated outside 66 Mya to 57.5 Mya.

Late Cretaceous — about 0 of 35 occurrencesPaleocene — about 35 of 35 occurrencesPaleocene66–66 Mya — about 0.1 occurrences66–66 Mya — about 0.1 occurrences66–65 Mya — about 0.1 occurrences65–65 Mya — about 0.1 occurrences65–65 Mya — about 0.1 occurrences65–64 Mya — about 0.1 occurrences64–64 Mya — about 0.1 occurrences64–64 Mya — about 0.1 occurrences64–63 Mya — about 0.9 occurrences63–63 Mya — about 4 occurrences63–63 Mya — about 4 occurrences63–62 Mya — about 4 occurrences62–62 Mya — about 4 occurrences62–62 Mya — about 4 occurrences62–61 Mya — about 4 occurrences61–61 Mya — about 4 occurrences61–61 Mya — about 3 occurrences61–60 Mya — about 0.5 occurrences60–60 Mya — about 0.5 occurrences60–60 Mya — about 0.5 occurrences60–60 Mya — about 0.5 occurrences60–59 Mya — about 0.5 occurrences59–59 Mya — about 0.5 occurrences59–59 Mya — about 0.5 occurrences59–58 Mya — about 0.5 occurrences58–58 Mya — about 0.5 occurrences58–58 Mya — about 0.5 occurrences58–57 Mya — about 0.2 occurrences63.4 Mya60.9 Mya66.5 Mya57 Mya

35 occurrences of Mixodectidae on record, most of them in the Paleocene. 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

7 formations

Nacimiento — 36.30°N, 108.20°WNacimiento — 36.57°N, 107.97°WNacimiento — 35.70°N, 107.00°WNacimiento — 36.18°N, 107.58°WNacimiento — 36.27°N, 107.76°WNacimiento — 36.00°N, 107.17°WFort Union — 41.30°N, 107.74°WFort Union — 43.85°N, 108.35°WFort Union — 45.80°N, 109.80°WPaskapoo — 53.23°N, 114.70°WPaskapoo — 51.18°N, 114.43°WPaskapoo — 52.35°N, 113.77°WPaskapoo — 52.23°N, 113.63°WPorcupine Hills — 51.10°N, 114.28°WPorcupine Hills — 51.21°N, 114.04°WPorcupine Hills — 51.10°N, 114.22°WNorth Horn — 39.18°N, 111.27°WNorth Horn — 39.00°N, 111.00°WBlack Peaks — 29.28°N, 103.55°WBlack Peaks — 29.42°N, 103.10°W"Fort Union" (= Lebo) — 45.80°N, 109.80°W

Loading coastlines…

The named rock units Mixodectidae 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.

Mixodectidae and its relatives

Paleocene

Where Mixodectidae and its relatives were recorded in the Paleocene.

Found in the same rock

368 taxa

The Paleobiology Database records 31 sites for Mixodectidae, 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

19 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. 7 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 Mixodectidae

Credit
Andrey Atuchin
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Mixodectidae was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itMixodectoidea through timeFormations of the PaleoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cope 1883