Anisonchus

Anisonchus

Uncredited · CC0 · via Wikidata/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
PeriptychidaePBDB
Diet
herbivorePBDB, for Periptychidae
Life habit
ground dwellingPBDB, for Periptychidae
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 56 Mya.

Late Cretaceous — about 0 of 55 occurrencesPaleocene — about 55 of 55 occurrencesPaleoceneEocene — about 0 of 55 occurrences66–66 Mya — about 1 occurrence66–65 Mya — about 2 occurrences65–65 Mya — about 2 occurrences65–65 Mya — about 2 occurrences65–64 Mya — about 2 occurrences64–64 Mya — about 2 occurrences64–64 Mya — about 2 occurrences64–63 Mya — about 4 occurrences63–63 Mya — about 5 occurrences63–62 Mya — about 5 occurrences62–62 Mya — about 5 occurrences62–62 Mya — about 5 occurrences62–61 Mya — about 5 occurrences61–61 Mya — about 5 occurrences61–61 Mya — about 2 occurrences61–60 Mya — about 0.7 occurrences60–60 Mya — about 0.7 occurrences60–60 Mya — about 0.7 occurrences60–59 Mya — about 0.7 occurrences59–59 Mya — about 0.7 occurrences59–58 Mya — about 0.7 occurrences58–58 Mya — about 0.7 occurrences58–58 Mya — about 0.7 occurrences58–57 Mya — about 0.4 occurrences57–57 Mya — about 0.0 occurrences57–57 Mya — about 0.0 occurrences57–56 Mya — about 0.0 occurrences56–56 Mya — about 0.0 occurrences63.4 Mya60.9 Mya66.5 Mya55.5 Mya

55 occurrences of Anisonchus 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

55 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

8 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°WNorth Horn — 39.10°N, 111.80°WNorth Horn — 39.00°N, 111.00°WNorth Horn — 39.18°N, 111.27°WNorth Horn — 39.05°N, 111.29°WFort Union — 41.70°N, 109.00°WFort Union — 41.30°N, 107.74°WFort Union — 43.85°N, 108.35°WFort Union — 45.80°N, 109.80°WFort Union — 45.10°N, 106.90°WFort Union — 43.45°N, 109.16°W"Fort Union" (= Lebo) — 46.20°N, 109.90°W"Fort Union" (= Lebo) — 45.80°N, 109.80°W"Fort Union No. 3" (= Melville) — 46.20°N, 109.90°W"Fort Union No. 3" (= Melville) — 45.80°N, 109.80°WTullock — 47.80°N, 106.10°WRavenscrag — 49.50°N, 109.20°WBear — 46.20°N, 109.90°W

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The named rock units Anisonchus 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.

Anisonchus and its relatives

Paleocene

Where Anisonchus and its relatives were recorded in the Paleocene.

Found in the same rock

351 taxa

The Paleobiology Database records 49 sites for Anisonchus, 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

22 references

Each of the 55 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. 10 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 content2

Picture of Anisonchus

Credit
nobody named on the record
Licence
CC0
Commercial use
the licence allows it

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Anisonchus Anisonchus cf. A. willeyi · uwbm:vp:101901

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

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

Keep going

What may have been alongside itPeriptychidae through timeFormations of the PaleoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cope 1881