Cytilus alternatus

Cytilus alternatus is a species of pill beetle in the family Byrrhidae. It is found in North America.

Cytilus alternatus

Ryan Hodnett · CC BY-SA 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
CytilusPBDB
Motility
actively mobilePBDB, for Arthropoda
Environment
terrestrialPBDB, for Insecta

Time the record covers

At most 118 thousand years on record.

Every occurrence read is dated to somewhere between 129 ka and 11.7 ka, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Pleistocene — about 6 of 6 occurrencesPleistoceneHolocene — about 0 of 6 occurrences147 ka–126 ka Mya — about 0.2 occurrences126 ka–105 ka Mya — about 1 occurrence105 ka–84 ka Mya — about 1 occurrence84 ka–63 ka Mya — about 1 occurrence63 ka–42 ka Mya — about 1 occurrence42 ka–21 ka Mya — about 1 occurrence21 ka–0 Mya — about 0.5 occurrences629 ka0 Mya

6 occurrences of Cytilus alternatus on record, most of them in the Pleistocene. 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

6 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

3 formations

Titusville Till — 41.62°N, 79.64°WOlympia beds — 47.66°N, 122.43°WQuadra Sand — 49.29°N, 122.88°W

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The named rock units Cytilus alternatus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Cytilus alternatus and its relatives

Pleistocene

Where Cytilus alternatus and its relatives were recorded in the Pleistocene.

Found in the same rock

225 taxa

The Paleobiology Database records 6 sites for Cytilus alternatus, 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

3 references

Each of the 6 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Cytilus alternatus

Credit
Ryan Hodnett
Licence
CC BY-SA 4.0
Commercial use
the licence allows it

No 3D scan of Cytilus alternatus 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

Occurrence data from the Paleobiology Database, CC BY 4.0. (Say 1825)