Mactra (Maorimactra)

No picture of Mactra (Maorimactra) was found. Wikipedia, Wikidata and iDigBio were searched and had none. 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 Mactra (Maorimactra), or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
MactraPBDB
Diet
suspension feederPBDB, for Mactra
Life habit
infaunalPBDB, for Mactra
Motility
facultatively mobilePBDB, for Mactra
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 55 million years on record.

The record covers at least 56 Mya to 774 ka. No occurrence read is dated outside 61.66 Mya to 129 ka.

Paleocene — about 2 of 12 occurrencesPaleoceneEocene — about 4 of 12 occurrencesEoceneOligocene — about 2 of 12 occurrencesOligoceneMiocene — about 3 of 12 occurrencesMiocenePliocene — about 0 of 12 occurrencesPleistocene — about 1 of 12 occurrences63–61 Mya — about 0.3 occurrences61–59 Mya — about 0.7 occurrences59–57 Mya — about 0.7 occurrences57–55 Mya — about 0.2 occurrences42–40 Mya — about 0.7 occurrences40–38 Mya — about 1 occurrence38–36 Mya — about 1 occurrence36–34 Mya — about 0.9 occurrences29–27 Mya — about 0.0 occurrences27–25 Mya — about 1.0 occurrences25–23 Mya — about 1.0 occurrences23–21 Mya — about 0.0 occurrences17–15 Mya — about 0.2 occurrences15–13 Mya — about 0.4 occurrences13–10 Mya — about 0.6 occurrences10–8.4 Mya — about 0.7 occurrences8.4–6.3 Mya — about 0.7 occurrences6.3–4.2 Mya — about 0.3 occurrences2.1–0 Mya — about 1 occurrence56 Mya774 ka63 Mya0 Mya

12 occurrences of Mactra (Maorimactra) on record, most of them in the Eocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

12 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

7 formations

Naseby Greensand — 45.02°S, 170.12°EKauru — 44.79°S, 170.51°EKauru — 45.04°S, 170.76°ETapui Glauconitic Sandstone — 44.92°S, 170.58°EWaihao — 44.20°S, 171.05°ELa Meseta — 64.24°S, 56.67°WWaiomio — 40.03°S, 175.48°ESubmeseta — 64.26°S, 56.65°W

Loading coastlines…

The named rock units Mactra (Maorimactra) 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.

Mactra (Maorimactra) and its relatives

Eocene

Where Mactra (Maorimactra) and its relatives were recorded in the Eocene.

Found in the same rock

80 taxa

The Paleobiology Database records 6 sites for Mactra (Maorimactra), 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

6 references

Each of the 12 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 content0

No picture of Mactra (Maorimactra) was found. Wikipedia, Wikidata and iDigBio were searched and had none.

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 Mactra (Maorimactra), or no answer at all. This entry cannot say which.

No 3D scan of Mactra (Maorimactra) 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 itMactra through timeFormations of the EoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Finlay 1928)