Pachyrisma (Pachymegalodon)

No picture of Pachyrisma (Pachymegalodon) 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 Pachyrisma (Pachymegalodon), or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
PachyrismaPBDB
Diet
suspension feederPBDB, for Megalodontidae
Life habit
semi-infaunalPBDB, for Megalodontidae
Motility
stationaryPBDB, for Megalodontidae
Vision
blindPBDB, for Megalodontidae

Time the record covers

At most 8.7 million years on record.

Every occurrence read is dated to somewhere between 192.9 Mya and 184.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Early Jurassic — about 5 of 5 occurrencesEarly Jurassic193–193 Mya — about 0.1 occurrences193–192 Mya — about 0.2 occurrences192–192 Mya — about 0.2 occurrences192–192 Mya — about 0.2 occurrences192–191 Mya — about 0.2 occurrences191–191 Mya — about 0.2 occurrences191–191 Mya — about 0.2 occurrences191–190 Mya — about 0.2 occurrences190–190 Mya — about 0.2 occurrences190–190 Mya — about 0.2 occurrences190–190 Mya — about 0.2 occurrences190–189 Mya — about 0.2 occurrences189–189 Mya — about 0.2 occurrences189–189 Mya — about 0.2 occurrences189–188 Mya — about 0.2 occurrences188–188 Mya — about 0.2 occurrences188–188 Mya — about 0.2 occurrences188–187 Mya — about 0.2 occurrences187–187 Mya — about 0.2 occurrences187–187 Mya — about 0.2 occurrences187–186 Mya — about 0.2 occurrences186–186 Mya — about 0.2 occurrences186–186 Mya — about 0.2 occurrences186–185 Mya — about 0.2 occurrences185–185 Mya — about 0.2 occurrences185–185 Mya — about 0.2 occurrences185–184 Mya — about 0.2 occurrences184–184 Mya — about 0.1 occurrences193.4 Mya183.7 Mya

5 occurrences of Pachyrisma (Pachymegalodon) on record, most of them in the Early Jurassic. 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

5 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.

Pachyrisma (Pachymegalodon) and its relatives

Early Jurassic

Where Pachyrisma (Pachymegalodon) and its relatives were recorded in the Early Jurassic.

Found in the same rock

37 taxa

The Paleobiology Database records 3 sites for Pachyrisma (Pachymegalodon), 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

2 references

Each of the 5 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 Pachyrisma (Pachymegalodon) 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 Pachyrisma (Pachymegalodon), or no answer at all. This entry cannot say which.

No 3D scan of Pachyrisma (Pachymegalodon) 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 itPachyrisma through timeFormations of the Early JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Gümbel 1862)