Mopalia

Mopalia is a genus of chitons in the family Mopaliidae.

Mopalia

Bureau of Land Management Oregon and Washington · 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
MopaliidaePBDB
Diet
grazerPBDB, for Polyplacophora
Life habit
epifaunalPBDB, for Polyplacophora
Motility
facultatively mobile, attachedPBDB, for Polyplacophora
Vision
limitedPBDB, for Polyplacophora
Environment
marine,brackishPBDB, for Polyplacophora

Time the record covers

At least 762 thousand years on record.

The record covers at least 774 ka to 11.7 ka. No occurrence read is dated outside 2.58 Mya to 0 Mya.

Pliocene — about 0 of 74 occurrencesPleistocene — about 73 of 74 occurrencesPleistoceneHolocene — about 1 of 74 occurrences2.7–2.6 Mya — about 0.2 occurrences2.6–2.5 Mya — about 1 occurrence2.5–2.4 Mya — about 1 occurrence2.4–2.3 Mya — about 1 occurrence2.3–2.2 Mya — about 1 occurrence2.2–2.1 Mya — about 1 occurrence2.1–2.0 Mya — about 1 occurrence2.0–1.8 Mya — about 1 occurrence1.8–1.7 Mya — about 1 occurrence1.7–1.6 Mya — about 1 occurrence1.6–1.5 Mya — about 1 occurrence1.5–1.4 Mya — about 1 occurrence1.4–1.3 Mya — about 1 occurrence1.3–1.2 Mya — about 1 occurrence1.2–1.1 Mya — about 1 occurrence1.1–1.0 Mya — about 1 occurrence1.0–924 ka Mya — about 1 occurrence924 ka–821 ka Mya — about 1 occurrence821 ka–719 ka Mya — about 2 occurrences719 ka–616 ka Mya — about 3 occurrences616 ka–513 ka Mya — about 3 occurrences513 ka–411 ka Mya — about 3 occurrences411 ka–308 ka Mya — about 3 occurrences308 ka–205 ka Mya — about 3 occurrences205 ka–103 ka Mya — about 10 occurrences103 ka–0 Mya — about 28 occurrences774 ka11.7 ka3.08 Mya0 Mya

74 occurrences of Mopalia 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

74 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

Unnamed — 33.24°N, 119.51°WUnnamed — 33.24°N, 119.55°WQuaternary terrace — 33.75°N, 118.33°WPalos Verdes Sand — 33.99°N, 118.45°WPalos Verdes Sand — 33.60°N, 117.88°WPalos Verdes Sand — 33.74°N, 118.28°WSan Pedro Sand — 33.74°N, 118.28°WHookton — 40.98°N, 124.11°WTimms Point Silt — 33.73°N, 118.28°WSan Pedro — 33.80°N, 118.17°WPalos Verdes — 33.63°N, 117.90°W

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The named rock units Mopalia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 40 occurrences have no formation on record, which is common for older literature.

Mopalia and its relatives

Pleistocene

Where Mopalia and its relatives were recorded in the Pleistocene.

Found in the same rock

1,026 taxa

The Paleobiology Database records 34 sites for Mopalia, 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

18 references

Each of the 74 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. 6 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 Mopalia

Credit
Bureau of Land Management Oregon and Washington
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Mopalia 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 itMopaliidae through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gray 1847