Ptychophyllum

Ptychophyllum

the paleobear from Lontananza, Loreto, Peru · CC BY 2.0 · 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
PtychophyllidaePBDB
Diet
suspension feederPBDB, for Rugosa
Life habit
epifaunalPBDB, for Rugosa
Motility
stationary, attachedPBDB, for Rugosa
Vision
blindPBDB, for Anthozoa
Environment
marinePBDB, for Rugosa

Time the record covers

At least 57 million years on record.

The record covers at least 439.4 Mya to 382.31 Mya. No occurrence read is dated outside 443.1 Mya to 372.15 Mya.

Ordovician — about 0 of 28 occurrencesSilurian — about 25 of 28 occurrencesSilurianDevonian — about 3 of 28 occurrencesDevonian445–442 Mya — about 0.8 occurrences442–440 Mya — about 6 occurrences440–437 Mya — about 4 occurrences437–435 Mya — about 3 occurrences435–432 Mya — about 3 occurrences432–430 Mya — about 2 occurrences430–427 Mya — about 2 occurrences427–425 Mya — about 1 occurrence425–422 Mya — about 0.8 occurrences422–420 Mya — about 0.3 occurrences420–417 Mya — about 0.0 occurrences415–413 Mya — about 0.2 occurrences413–410 Mya — about 0.8 occurrences383–381 Mya — about 0.3 occurrences381–378 Mya — about 0.5 occurrences378–376 Mya — about 0.5 occurrences376–373 Mya — about 0.5 occurrences373–371 Mya — about 0.2 occurrences439.4 Mya382.31 Mya445 Mya371 Mya

28 occurrences of Ptychophyllum on record, most of them in the Silurian. 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

28 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

14 formations

Khandyg — 62.93°N, 138.10°EKakisa — 61.00°N, 120.00°WKakisa — 56.28°N, 123.40°WFossil Hill — 45.83°N, 82.33°WLaketown Dolomite — 38.50°N, 115.00°WScotch Grove — 42.00°N, 91.00°WChicotte — 49.40°N, 63.60°WQiaergaye — 45.95°N, 83.62°EManchap — 31.60°N, 78.75°ETortworth Beds — 51.88°N, 2.23°WMia Le — 22.23°N, 106.18°EGionyama — 32.63°N, 131.18°EThornloe — 47.48°N, 79.61°WRead Bay — 74.84°N, 93.43°WVaughn Gulch — 36.90°N, 118.07°W

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The named rock units Ptychophyllum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 11 occurrences have no formation on record, which is common for older literature.

Ptychophyllum and its relatives

Silurian

Where Ptychophyllum and its relatives were recorded in the Silurian.

Found in the same rock

252 taxa

The Paleobiology Database records 23 sites for Ptychophyllum, 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

20 references

Each of the 28 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. 8 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 Ptychophyllum

Credit
the paleobear from Lontananza, Loreto, Peru
Licence
CC BY 2.0
Commercial use
the licence allows it

No 3D scan of Ptychophyllum 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 itPtychophyllidae through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Milne-Edwards and Haime 1850