Ptychodesma

Ptychodesma

Yale Peabody Museum · CC0 · via GBIF. 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
PtychodesmatinaePBDB
Diet
suspension feederPBDB, for Cyrtodontidae
Life habit
semi-infaunalPBDB, for Cyrtodontidae
Motility
facultatively mobilePBDB, for Cyrtodontidae
Vision
blindPBDB, for Bivalvia

Time the record covers

At least 5.6 million years on record.

The record covers at least 387.95 Mya to 382.31 Mya. No occurrence read is dated outside 410.62 Mya to 372.15 Mya.

Devonian — about 6 of 6 occurrencesDevonian411–410 Mya — about 0.1 occurrences410–409 Mya — about 0.1 occurrences409–407 Mya — about 0.1 occurrences407–406 Mya — about 0.1 occurrences406–405 Mya — about 0.1 occurrences405–403 Mya — about 0.1 occurrences403–402 Mya — about 0.1 occurrences402–401 Mya — about 0.1 occurrences401–399 Mya — about 0.1 occurrences399–398 Mya — about 0.1 occurrences398–397 Mya — about 0.1 occurrences397–395 Mya — about 0.1 occurrences395–394 Mya — about 0.1 occurrences394–393 Mya — about 0.3 occurrences393–391 Mya — about 0.4 occurrences391–390 Mya — about 0.4 occurrences390–389 Mya — about 0.4 occurrences389–387 Mya — about 0.3 occurrences387–386 Mya — about 0.2 occurrences386–385 Mya — about 0.2 occurrences385–383 Mya — about 0.2 occurrences383–382 Mya — about 0.2 occurrences382–381 Mya — about 0.3 occurrences381–379 Mya — about 0.3 occurrences379–378 Mya — about 0.3 occurrences378–377 Mya — about 0.3 occurrences377–375 Mya — about 0.3 occurrences375–374 Mya — about 0.3 occurrences374–373 Mya — about 0.3 occurrences373–371 Mya — about 0.1 occurrences387.95 Mya382.31 Mya411.4 Mya371.4 Mya

6 occurrences of Ptychodesma on record, most of them in the Devonian. 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

6 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

4 formations

Marcellus — 42.95°N, 75.67°WPimenteira — 7.00°S, 42.00°WRhinestreet — 42.09°N, 76.87°WHanover — 42.28°N, 77.18°W

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The named rock units Ptychodesma has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Ptychodesma and its relatives

Devonian

Where Ptychodesma and its relatives were recorded in the Devonian.

Found in the same rock

82 taxa

The Paleobiology Database records 6 sites for Ptychodesma, 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

4 references

Each of the 6 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Ptychodesma

Source
GBIF
Credit
Yale Peabody Museum
Licence
CC0
Commercial use
the licence allows it

No 3D scan of Ptychodesma was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itPtychodesmatinae through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Hall and Whitfield 1872