Portlandia glacialis

Portlandia glacialis

Gray, 1825 · CC0 · via Wikidata/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
PortlandiaPBDB
Diet
deposit feederPBDB, for Sareptidae
Life habit
infaunalPBDB, for Sareptidae
Motility
facultatively mobilePBDB, for Sareptidae
Vision
blindPBDB, for Bivalvia

Time the record covers

At most 129 thousand years on record.

Every occurrence read is dated to somewhere between 129 ka and 0 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Pleistocene — about 17 of 22 occurrencesPleistoceneHolocene — about 5 of 22 occurrences147 ka–126 ka Mya — about 0.5 occurrences126 ka–105 ka Mya — about 3 occurrences105 ka–84 ka Mya — about 3 occurrences84 ka–63 ka Mya — about 3 occurrences63 ka–42 ka Mya — about 3 occurrences42 ka–21 ka Mya — about 3 occurrences21 ka–0 Mya — about 6 occurrences629 ka0 Mya

22 occurrences of Portlandia glacialis 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

22 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

1 formation

Presumpscot — 43.64°N, 70.48°WPresumpscot — 43.89°N, 70.28°WPresumpscot — 43.84°N, 70.10°WPresumpscot — 45.19°N, 67.28°WPresumpscot — 43.91°N, 69.97°WPresumpscot — 44.23°N, 69.78°WPresumpscot — 43.35°N, 70.50°WPresumpscot — 43.80°N, 70.19°WPresumpscot — 44.10°N, 70.21°WPresumpscot — 43.63°N, 70.05°WPresumpscot — 43.50°N, 70.44°WPresumpscot — 43.64°N, 70.26°WPresumpscot — 44.80°N, 68.78°W

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The named rock units Portlandia glacialis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 9 occurrences have no formation on record, which is common for older literature.

Portlandia glacialis and its relatives

Pleistocene

Where Portlandia glacialis and its relatives were recorded in the Pleistocene.

Found in the same rock

11 taxa

The Paleobiology Database records 1 site for Portlandia glacialis, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

2 references

Each of the 22 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 Portlandia glacialis

Credit
Gray, 1825
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 itPortlandia through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Wood 1828)