Larkinia grandis

Larkinia grandis is a genus of saltwater clams in the family Arcidae, the ark clams.

Larkinia grandis

Hectonichus · 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
AnadaraPBDB
Diet
suspension feederPBDB, for Anadara
Life habit
semi-infaunalPBDB, for Anadara
Motility
facultatively mobilePBDB, for Anadara
Vision
limitedPBDB, for Arcidae
Environment
lagoonal,coastal,inner shelf,outer shelf,oceanic,brackish,freshwaterPBDB, for Arcidae

Time the record covers

At least 9 million years on record.

The record covers at least 11.63 Mya to 2.58 Mya. No occurrence read is dated outside 15.98 Mya to 11.7 ka.

Miocene — about 13 of 24 occurrencesMiocenePliocene — about 5 of 24 occurrencesPliocenePleistocene — about 6 of 24 occurrencesPleistocene16–16 Mya — about 0.1 occurrences16–15 Mya — about 0.8 occurrences15–15 Mya — about 0.8 occurrences15–14 Mya — about 0.8 occurrences14–14 Mya — about 0.8 occurrences14–13 Mya — about 0.8 occurrences13–13 Mya — about 0.8 occurrences13–12 Mya — about 0.8 occurrences12–12 Mya — about 0.7 occurrences12–11 Mya — about 0.6 occurrences11–10 Mya — about 0.6 occurrences10–9.9 Mya — about 0.6 occurrences9.9–9.3 Mya — about 0.6 occurrences9.3–8.8 Mya — about 0.6 occurrences8.8–8.2 Mya — about 0.6 occurrences8.2–7.7 Mya — about 0.6 occurrences7.7–7.1 Mya — about 0.6 occurrences7.1–6.6 Mya — about 0.6 occurrences6.6–6.0 Mya — about 0.6 occurrences6.0–5.5 Mya — about 0.6 occurrences5.5–4.9 Mya — about 1 occurrence4.9–4.4 Mya — about 1 occurrence4.4–3.8 Mya — about 1 occurrence3.8–3.3 Mya — about 0.8 occurrences3.3–2.7 Mya — about 0.2 occurrences2.7–2.2 Mya — about 1 occurrence2.2–1.6 Mya — about 2 occurrences1.6–1.1 Mya — about 2 occurrences1.1–549 ka Mya — about 1 occurrence549 ka–0 Mya — about 0.6 occurrences11.63 Mya2.58 Mya16.5 Mya0 Mya

24 occurrences of Larkinia grandis on record, most of them in the Miocene. 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

24 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

9 formations

Tubará — 10.75°N, 75.00°WMancora Tablazo — 4.32°S, 81.25°WMancora Tablazo — 4.58°S, 81.27°WJama — 0.18°S, 80.32°WAugust Town — 17.98°N, 76.73°WCerros de Sala — 18.17°N, 71.25°WChiguale — 11.00°N, 69.83°WLa Vela — 11.00°N, 69.83°WUsiacurí — 10.75°N, 75.00°WPiojó — 10.75°N, 75.00°W

Loading coastlines…

The named rock units Larkinia grandis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.

Larkinia grandis and its relatives

Miocene

Where Larkinia grandis and its relatives were recorded in the Miocene.

Found in the same rock

84 taxa

The Paleobiology Database records 8 sites for Larkinia grandis, 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

8 references

Each of the 24 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. 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 Larkinia grandis

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

No 3D scan of Larkinia grandis 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 itAnadara through timeFormations of the MioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Broderip and Sowerby 1829)