Macoma (Rexithaerus)

No picture of Macoma (Rexithaerus) was found. Wikidata and iDigBio were searched and had none. Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Macoma (Rexithaerus), or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
MacomaPBDB
Diet
deposit feederPBDB
Life habit
infaunalPBDB
Motility
facultatively mobilePBDB
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 55 million years on record.

The record covers at least 56 Mya to 129 ka. No occurrence read is dated outside 59.24 Mya to 11.7 ka.

Paleocene — about 1 of 150 occurrencesEocene — about 11 of 150 occurrencesEoceneOligocene — about 4 of 150 occurrencesOligoceneMiocene — about 50 of 150 occurrencesMiocenePliocene — about 29 of 150 occurrencesPleistocene — about 55 of 150 occurrences60–58 Mya — about 0.3 occurrences58–56 Mya — about 0.6 occurrences56–54 Mya — about 0.2 occurrences54–52 Mya — about 0.1 occurrences52–50 Mya — about 0.1 occurrences50–48 Mya — about 0.1 occurrences48–46 Mya — about 3 occurrences46–44 Mya — about 3 occurrences44–42 Mya — about 3 occurrences42–40 Mya — about 2 occurrences34–32 Mya — about 0.3 occurrences32–30 Mya — about 0.4 occurrences30–28 Mya — about 0.4 occurrences28–26 Mya — about 0.9 occurrences26–24 Mya — about 1 occurrence24–22 Mya — about 3 occurrences22–20 Mya — about 5 occurrences20–18 Mya — about 5 occurrences18–16 Mya — about 5 occurrences16–14 Mya — about 5 occurrences14–12 Mya — about 4 occurrences12–10 Mya — about 4 occurrences10–8.1 Mya — about 5 occurrences8.1–6.0 Mya — about 9 occurrences6.0–4.0 Mya — about 17 occurrences4.0–2.0 Mya — about 21 occurrences2.0–0 Mya — about 50 occurrences56 Mya129 ka60 Mya0 Mya

150 occurrences of Macoma (Rexithaerus) 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

150 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

34 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°WTowsley — 34.36°N, 118.51°WVaqueros — 34.37°N, 118.82°WVaqueros — 34.45°N, 118.92°WVaqueros — 34.57°N, 119.02°WVaqueros — 34.37°N, 119.33°WVaqueros — 34.44°N, 119.20°WVaqueros — 34.98°N, 120.21°WVaqueros — 35.25°N, 120.06°WTemblor — 35.95°N, 120.25°WTemblor — 36.34°N, 120.36°WTemblor — 36.37°N, 120.29°WTemblor — 35.88°N, 120.10°WTemblor — 35.38°N, 120.15°WPico — 34.43°N, 118.70°WPico — 34.34°N, 118.51°WPico — 34.35°N, 118.52°WPancho Rico — 35.73°N, 120.81°WPancho Rico — 36.03°N, 120.86°WPancho Rico — 35.99°N, 120.79°WPancho Rico — 35.90°N, 120.84°WPancho Rico — 35.97°N, 120.73°WJacalitos — 36.08°N, 120.48°WJacalitos — 36.09°N, 120.41°WJacalitos — 36.04°N, 120.39°WLlajas — 34.30°N, 118.72°WLlajas — 34.24°N, 118.80°WSan Pedro Sand — 33.74°N, 118.28°WCareaga Sandstone — 34.86°N, 120.46°WCareaga Sandstone — 34.74°N, 120.41°WEtchegoin — 36.25°N, 120.31°WEtchegoin — 36.06°N, 120.45°WEtchegoin — 36.21°N, 120.67°WPalos Verdes — 33.63°N, 117.90°WSisquoc — 34.81°N, 120.22°WMonterey — 35.99°N, 120.30°WMonterey — 33.60°N, 117.80°WIl'inskaya — 57.78°N, 158.58°ECercado — 19.45°N, 71.18°WCercado — 19.45°N, 71.08°WMerced — 37.39°N, 122.17°WArdath — 32.83°N, 117.23°WArdath — 32.90°N, 117.22°WSan Diego — 32.54°N, 117.11°WClallam — 48.20°N, 122.11°WEtolonskaya — 58.42°N, 159.00°EWaiomio — 40.03°S, 175.48°ESespe — 33.77°N, 117.68°WSanta Margarita — 36.20°N, 120.32°W

Loading coastlines…

The named rock units Macoma (Rexithaerus) has been recovered from, largest first. Drawn where the rock is now, not where it formed. 10 further formations hold fewer occurrences each and are not listed. 25 occurrences have no formation on record, which is common for older literature.

Macoma (Rexithaerus) and its relatives

Pleistocene

Where Macoma (Rexithaerus) and its relatives were recorded in the Pleistocene.

Found in the same rock

1,604 taxa

The Paleobiology Database records 116 sites for Macoma (Rexithaerus), and this reads all of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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

55 references

Each of the 150 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. 43 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 content0

No picture of Macoma (Rexithaerus) was found. Wikidata and iDigBio were searched and had none.

Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Macoma (Rexithaerus), or no answer at all. This entry cannot say which.

No 3D scan of Macoma (Rexithaerus) 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.

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

Keep going

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

Occurrence data from the Paleobiology Database, CC BY 4.0. (Conrad 1869)