Acastoides

Acastoides is an extinct genus of trilobite that lived during the Silurian and Devonian. It has been found in Bolivia, France, Morocco, Poland, Turkey and the United Kingdom.

Acastoides

Dwergenpaartje · CC BY-SA 3.0 · via Wikipedia/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
AcastidaePBDB
Diet
carnivorePBDB, for Phacopina
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
limitedPBDB
Environment
marinePBDB, for Trilobita

Time the record covers

At least 27 million years on record.

The record covers at least 426.7 Mya to 399.5 Mya. No occurrence read is dated outside 432.9 Mya to 387.95 Mya.

Silurian — about 1 of 29 occurrencesSilurianDevonian — about 28 of 29 occurrencesDevonian434–432 Mya — about 0.1 occurrences432–431 Mya — about 0.3 occurrences431–429 Mya — about 0.3 occurrences429–428 Mya — about 0.3 occurrences428–426 Mya — about 0.1 occurrences420–418 Mya — about 1 occurrence418–417 Mya — about 1 occurrence417–415 Mya — about 1 occurrence415–414 Mya — about 1 occurrence414–412 Mya — about 4 occurrences412–410 Mya — about 4 occurrences410–409 Mya — about 0.6 occurrences409–407 Mya — about 0.6 occurrences407–406 Mya — about 0.6 occurrences406–404 Mya — about 0.6 occurrences404–403 Mya — about 0.6 occurrences403–401 Mya — about 0.6 occurrences401–400 Mya — about 0.6 occurrences400–398 Mya — about 3 occurrences398–396 Mya — about 3 occurrences396–395 Mya — about 3 occurrences395–393 Mya — about 2 occurrences393–392 Mya — about 0.3 occurrences392–390 Mya — about 0.3 occurrences390–389 Mya — about 0.3 occurrences389–387 Mya — about 0.1 occurrences426.7 Mya399.5 Mya433.8 Mya387.1 Mya

29 occurrences of Acastoides 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

29 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

13 formations

Saint-Cenere — 48.13°N, 0.78°WTimrhanrhart — 29.71°N, 6.70°WAin Targa — 33.12°N, 7.93°WIcerenkoy — 40.87°N, 29.12°EIcerenkoy — 40.00°N, 29.00°EBelen — 15.50°S, 68.00°WHeisdorf — 50.34°N, 6.76°EBostów — 50.90°N, 21.08°EKartal — 40.90°N, 29.18°EGamoneda — 21.50°S, 64.00°WWiltz — 50.09°N, 6.81°ECoalbrookdale — 52.09°N, 2.33°WHarbecke — 51.15°N, 8.56°EGrzegorzowice — 51.04°N, 21.07°E

Loading coastlines…

The named rock units Acastoides has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.

Acastoides and its relatives

Devonian

Where Acastoides and its relatives were recorded in the Devonian.

Found in the same rock

143 taxa

The Paleobiology Database records 21 sites for Acastoides, 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

12 references

Each of the 29 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 Acastoides

Credit
Dwergenpaartje
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Acastoides was found in Sketchfab.

Smithsonian Open Access and MorphoSource were not reached for this taxon, so this list is what the others held rather than everything there is.

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 itAcastidae through timeFormations of the DevonianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Delo 1935)