Lirularia optabilis

Lirularia optabilis is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

Lirularia optabilis

W.H. Dall · 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
choice margaritePBDB
Sits inside
LirulariaPBDB
Diet
grazerPBDB, for Trochidae
Life habit
epifaunalPBDB, for Trochidae
Motility
actively mobilePBDB, for Trochidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 1.6 million years on record.

The record covers at least 1.8 Mya to 129 ka. No occurrence read is dated outside 2.58 Mya to 0 Mya.

Pliocene — about 0 of 29 occurrencesPleistocene — about 29 of 29 occurrencesPleistoceneHolocene — about 0 of 29 occurrences2.7–2.6 Mya — about 0.1 occurrences2.6–2.5 Mya — about 1.0 occurrences2.5–2.4 Mya — about 1.0 occurrences2.4–2.3 Mya — about 1.0 occurrences2.3–2.2 Mya — about 1.0 occurrences2.2–2.1 Mya — about 1.0 occurrences2.1–2.0 Mya — about 1.0 occurrences2.0–1.8 Mya — about 1.0 occurrences1.8–1.7 Mya — about 0.7 occurrences1.7–1.6 Mya — about 0.4 occurrences1.6–1.5 Mya — about 0.4 occurrences1.5–1.4 Mya — about 0.4 occurrences1.4–1.3 Mya — about 0.4 occurrences1.3–1.2 Mya — about 0.4 occurrences1.2–1.1 Mya — about 0.4 occurrences1.1–1.0 Mya — about 0.4 occurrences1.0–924 ka Mya — about 0.4 occurrences924 ka–821 ka Mya — about 0.4 occurrences821 ka–719 ka Mya — about 1 occurrence719 ka–616 ka Mya — about 2 occurrences616 ka–513 ka Mya — about 2 occurrences513 ka–411 ka Mya — about 2 occurrences411 ka–308 ka Mya — about 2 occurrences308 ka–205 ka Mya — about 2 occurrences205 ka–103 ka Mya — about 3 occurrences103 ka–0 Mya — about 4 occurrences1.8 Mya129 ka3.08 Mya0 Mya

29 occurrences of Lirularia optabilis 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

29 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°WCareaga Sandstone — 34.88°N, 120.51°WCareaga Sandstone — 34.84°N, 120.41°WCareaga Sandstone — 34.74°N, 120.41°WTimms Point Silt — 33.73°N, 118.28°WLomita Marl — 33.75°N, 118.30°WLomita Marl — 33.74°N, 118.29°WPalos Verdes Sand — 33.99°N, 118.45°WPalos Verdes Sand — 33.60°N, 117.88°WSan Pedro Sand — 33.74°N, 118.28°WQuaternary terrace — 33.76°N, 118.35°WSanta Barbara — 34.40°N, 119.69°W

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The named rock units Lirularia optabilis 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.

Lirularia optabilis and its relatives

Pleistocene

Where Lirularia optabilis and its relatives were recorded in the Pleistocene.

Found in the same rock

1,046 taxa

The Paleobiology Database records 23 sites for Lirularia optabilis, 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

14 references

Each of the 29 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. 2 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 Lirularia optabilis

Credit
W.H. Dall
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Lirularia optabilis 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 itLirularia through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Carpenter 1864)