Distyrax

Distyrax is a genus of trilobites in the order Phacopida, that existed during the lower Silurian in what is now Greenland. It was described by Philip D. Lane in 1988, and the type species is Distyrax peeli. It also contains the species, Distyrax cooperi. The type locality was the Odins Fjord Formation.

No picture of Distyrax was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Distyrax, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
EncrinuridaePBDB
Diet
carnivorePBDB, for Trilobita
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Environment
marinePBDB, for Trilobita

Time the record covers

At most 13 million years on record.

Every occurrence read is dated to somewhere between 443.1 Mya and 430.6 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Ordovician — about 0 of 22 occurrencesSilurian — about 22 of 22 occurrencesSilurian443–443 Mya — about 0.1 occurrences443–442 Mya — about 0.1 occurrences442–442 Mya — about 0.1 occurrences442–441 Mya — about 0.1 occurrences441–441 Mya — about 0.1 occurrences441–440 Mya — about 0.1 occurrences440–440 Mya — about 0.6 occurrences440–440 Mya — about 0.6 occurrences440–439 Mya — about 0.6 occurrences439–439 Mya — about 0.6 occurrences439–438 Mya — about 1 occurrence438–438 Mya — about 1 occurrence438–437 Mya — about 1 occurrence437–437 Mya — about 1 occurrence437–436 Mya — about 1 occurrence436–436 Mya — about 1 occurrence436–436 Mya — about 1 occurrence436–435 Mya — about 1 occurrence435–435 Mya — about 1 occurrence435–434 Mya — about 1 occurrence434–434 Mya — about 1 occurrence434–433 Mya — about 1 occurrence433–433 Mya — about 1 occurrence433–432 Mya — about 0.1 occurrences432–432 Mya — about 0.1 occurrences432–431 Mya — about 0.1 occurrences431–431 Mya — about 0.1 occurrences431–431 Mya — about 0.1 occurrences443.6 Mya430.1 Mya

22 occurrences of Distyrax 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

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

6 formations

Jupiter — 49.38°N, 63.51°WJupiter — 49.38°N, 63.40°WJupiter — 49.12°N, 62.22°WJupiter — 49.14°N, 62.34°WJupiter — 49.23°N, 62.55°WWhittaker — 62.38°N, 127.00°WBrandon Bridge — 43.00°N, 88.00°WBrandon Bridge — 43.03°N, 88.21°WChicotte — 49.39°N, 63.60°WChicotte — 49.28°N, 63.07°WLower Visby Beds — 57.66°N, 18.31°ELower Visby Beds — 57.77°N, 18.42°EGun River — 49.53°N, 63.54°W

Loading coastlines…

The named rock units Distyrax has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Distyrax and its relatives

Silurian

Where Distyrax and its relatives were recorded in the Silurian.

Found in the same rock

129 taxa

The Paleobiology Database records 22 sites for Distyrax, 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

5 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 content0

No picture of Distyrax was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Distyrax, or no answer at all. This entry cannot say which.

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

The description on this site

Licence
CC BY-SA 4.0

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itEncrinuridae through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Lane 1988