Rexithaerus secta

Rexithaerus secta

via iDigBio · CC0 · via iDigBio. 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
white sandclamPBDB
Sits inside
Macoma (Rexithaerus)PBDB
Diet
deposit feederPBDB, for Macoma (Rexithaerus)
Life habit
infaunalPBDB, for Macoma (Rexithaerus)
Motility
facultatively mobilePBDB, for Macoma (Rexithaerus)
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 22 million years on record.

The record covers at least 23.04 Mya to 129 ka. No occurrence read is dated outside 33.9 Mya to 11.7 ka.

Eocene — about 0 of 57 occurrencesOligocene — about 3 of 57 occurrencesOligoceneMiocene — about 11 of 57 occurrencesMiocenePliocene — about 11 of 57 occurrencesPleistocene — about 32 of 57 occurrences35–33 Mya — about 0.0 occurrences33–32 Mya — about 0.1 occurrences32–31 Mya — about 0.1 occurrences31–30 Mya — about 0.1 occurrences30–29 Mya — about 0.1 occurrences29–28 Mya — about 0.1 occurrences28–27 Mya — about 0.5 occurrences27–25 Mya — about 0.6 occurrences25–24 Mya — about 0.6 occurrences24–23 Mya — about 0.6 occurrences23–22 Mya — about 0.8 occurrences22–21 Mya — about 0.8 occurrences21–20 Mya — about 0.8 occurrences20–18 Mya — about 0.8 occurrences18–17 Mya — about 0.8 occurrences17–16 Mya — about 0.8 occurrences16–15 Mya — about 0.1 occurrences13–12 Mya — about 0.0 occurrences12–10 Mya — about 0.4 occurrences10–9.2 Mya — about 0.4 occurrences9.2–8.1 Mya — about 0.6 occurrences8.1–6.9 Mya — about 1 occurrence6.9–5.8 Mya — about 2 occurrences5.8–4.6 Mya — about 3 occurrences4.6–3.5 Mya — about 3 occurrences3.5–2.3 Mya — about 7 occurrences2.3–1.2 Mya — about 2 occurrences1.2–0 Mya — about 30 occurrences23.04 Mya129 ka34.6 Mya0 Mya

57 occurrences of Rexithaerus secta 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

57 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

17 formations

Palos Verdes Sand — 33.80°N, 118.16°WPalos Verdes Sand — 33.99°N, 118.45°WPalos Verdes Sand — 33.60°N, 117.88°WPalos Verdes Sand — 33.71°N, 118.27°WPalos Verdes Sand — 33.66°N, 117.94°WPico — 34.42°N, 118.70°WPico — 34.34°N, 118.51°WPico — 34.35°N, 118.52°WSan Pedro Sand — 33.71°N, 118.27°WPancho Rico — 35.99°N, 120.79°WPancho Rico — 35.90°N, 120.84°WTowsley — 34.36°N, 118.51°WJacalitos — 36.08°N, 120.48°WJacalitos — 36.09°N, 120.41°WPalos Verdes — 33.63°N, 117.90°WClallam — 48.20°N, 122.11°WMonterey — 33.60°N, 117.80°WSespe — 33.77°N, 117.68°WMerced — 37.39°N, 122.17°WPoul Creek — 60.01°N, 141.45°WBay Point — 32.78°N, 117.24°WCareaga Sandstone — 34.74°N, 120.41°WEtchegoin — 36.25°N, 120.31°WQuaternary terrace — 33.79°N, 118.41°WMedill — 34.04°N, 118.40°W

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The named rock units Rexithaerus secta has been recovered from, largest first. Drawn where the rock is now, not where it formed. 13 occurrences have no formation on record, which is common for older literature.

Rexithaerus secta and its relatives

Pleistocene

Where Rexithaerus secta and its relatives were recorded in the Pleistocene.

Found in the same rock

1,157 taxa

The Paleobiology Database records 51 sites for Rexithaerus secta, 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

27 references

Each of the 57 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. 15 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 Rexithaerus secta

Source
iDigBio
Credit
via iDigBio
Licence
CC0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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

Keep going

What may have been alongside itMacoma (Rexithaerus) through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Conrad 1837)