Acastidae

Acastidae is a family of trilobites in the order Phacopida, suborder Phacopina, superfamily Acastoidea, containing the following genera:

Acastidae

Daderot · CC0 · 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
AcastoideaPBDB
Diet
carnivorePBDB, for Phacopina
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
well-developedPBDB
Environment
marinePBDB, for Trilobita

Time the record covers

At least 85 million years on record.

The record covers at least 461 Mya to 375.2 Mya. No occurrence read is dated outside 468 Mya to 358.86 Mya.

Ordovician — about 113 of 805 occurrencesOrdovicianSilurian — about 49 of 805 occurrencesSilurianDevonian — about 643 of 805 occurrencesDevonianCarboniferous — about 0 of 805 occurrences470–466 Mya — about 2 occurrences466–463 Mya — about 4 occurrences463–459 Mya — about 37 occurrences459–455 Mya — about 24 occurrences455–451 Mya — about 14 occurrences451–447 Mya — about 22 occurrences447–444 Mya — about 9 occurrences444–440 Mya — about 2 occurrences440–436 Mya — about 2 occurrences436–432 Mya — about 2 occurrences432–429 Mya — about 7 occurrences429–425 Mya — about 7 occurrences425–421 Mya — about 20 occurrences421–417 Mya — about 46 occurrences417–413 Mya — about 62 occurrences413–410 Mya — about 88 occurrences410–406 Mya — about 15 occurrences406–402 Mya — about 15 occurrences402–398 Mya — about 29 occurrences398–395 Mya — about 60 occurrences395–391 Mya — about 41 occurrences391–387 Mya — about 70 occurrences387–383 Mya — about 136 occurrences383–379 Mya — about 59 occurrences379–376 Mya — about 18 occurrences376–372 Mya — about 14 occurrences372–368 Mya — about 0.2 occurrences368–364 Mya — about 0.2 occurrences364–360 Mya — about 0.2 occurrences360–357 Mya — about 0.1 occurrences461 Mya375.2 Mya470 Mya357 Mya

805 occurrences of Acastidae 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

805 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

201 formations

Ludlowville — 42.76°N, 78.65°WLudlowville — 42.78°N, 78.79°WLudlowville — 42.86°N, 77.76°WLudlowville — 42.83°N, 77.81°WLudlowville — 42.96°N, 78.13°WLudlowville — 42.80°N, 77.27°WLudlowville — 42.78°N, 76.99°WLudlowville — 42.85°N, 78.64°WLudlowville — 42.85°N, 78.37°WLudlowville — 42.87°N, 77.87°WLudlowville — 43.00°N, 79.00°WLudlowville — 42.91°N, 78.48°WLudlowville — 42.77°N, 76.71°WLudlowville — 42.75°N, 76.77°WLudlowville — 42.73°N, 76.71°WLudlowville — 42.89°N, 76.75°WLudlowville — 42.76°N, 75.54°WLudlowville — 42.87°N, 75.71°WLudlowville — 42.76°N, 76.47°WLudlowville — 42.74°N, 75.54°WMoscow — 42.70°N, 76.75°WMoscow — 42.82°N, 78.68°WMoscow — 42.90°N, 78.04°WMoscow — 42.56°N, 74.58°WMoscow — 42.75°N, 77.01°WMoscow — 42.83°N, 75.78°WMoscow — 42.67°N, 76.73°WMoscow — 42.79°N, 76.15°WMoscow — 42.77°N, 76.03°WMoscow — 42.81°N, 75.91°WMoscow — 42.66°N, 75.38°WMoscow — 42.68°N, 75.57°WMoscow — 42.68°N, 75.46°WMoscow — 42.60°N, 74.95°WMoscow — 42.75°N, 77.15°WMoscow — 42.77°N, 77.83°WMoscow — 42.82°N, 77.57°WMoscow — 42.78°N, 77.33°WMoscow — 42.67°N, 76.95°WMoscow — 42.47°N, 74.47°WSkaneateles — 42.80°N, 76.69°WSkaneateles — 42.90°N, 76.47°WSkaneateles — 42.97°N, 76.44°WSkaneateles — 42.98°N, 76.34°WSkaneateles — 42.94°N, 76.25°WSkaneateles — 42.93°N, 75.99°WSkaneateles — 42.92°N, 76.21°WSkaneateles — 42.86°N, 75.89°WSkaneateles — 42.95°N, 76.43°WSkaneateles — 42.86°N, 76.14°WSkaneateles — 42.90°N, 75.60°WSkaneateles — 42.79°N, 75.27°WSkaneateles — 42.87°N, 77.88°WSkaneateles — 42.98°N, 76.09°WSaint-Cenere — 48.13°N, 0.78°WBostów — 50.90°N, 21.08°EBostów — 51.25°N, 21.57°EBostów — 50.47°N, 21.08°ETully — 42.60°N, 75.34°WTully — 42.79°N, 75.80°WTully — 42.53°N, 76.53°WTully — 42.74°N, 75.88°WTully — 42.59°N, 75.18°WTully — 42.53°N, 74.81°WNogueras — 41.00°N, 1.00°WTimrhanrhart — 29.71°N, 6.70°WTimrhanrhart — 29.75°N, 6.71°WLebanza — 43.00°N, 0.92°WLebanza — 42.97°N, 4.52°WLebanza — 41.88°N, 6.42°WKess Kess — 31.37°N, 7.30°WKess Kess — 31.75°N, 4.50°WMariposas — 41.13°N, 1.07°WHeisdorf — 50.34°N, 6.76°EHeisdorf — 50.38°N, 6.79°EMahantango — 40.50°N, 77.25°WMahantango — 40.05°N, 77.52°WMahantango — 40.33°N, 76.92°WMahantango — 40.42°N, 77.17°WMahantango — 40.42°N, 77.00°WLittle Cedar — 42.00°N, 91.00°WLittle Cedar — 41.83°N, 90.23°WUntere Quartzite — 38.86°N, 4.08°WUntere Quartzite — 39.05°N, 4.17°WUntere Quartzite — 39.60°N, 5.24°WBohdalec — 50.00°N, 14.00°EIhandar — 30.84°N, 4.92°WIhandar — 30.96°N, 5.02°WIhandar — 30.73°N, 4.64°WCautley Mudstone — 54.38°N, 2.44°WCautley Mudstone — 54.32°N, 2.52°WAmerboh — 31.38°N, 4.07°WAmerboh — 31.37°N, 4.05°WPortilla — 42.83°N, 5.65°WPortilla — 41.05°N, 3.33°WPortilla — 42.82°N, 5.27°WPortilla — 42.97°N, 5.85°WBeaulieu — 50.83°N, 1.77°ELe Fret — 48.40°N, 4.48°WLower Ktaoua — 30.10°N, 6.13°WLower Ktaoua — 30.08°N, 6.88°WLower Ktaoua — 30.42°N, 5.67°WLower Ktaoua — 30.00°N, 8.50°WLower Ktaoua — 31.15°N, 5.10°WAin Targa — 33.12°N, 7.93°W

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The named rock units Acastidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 177 further formations hold fewer occurrences each and are not listed. 91 occurrences have no formation on record, which is common for older literature.

Acastidae and its relatives

Devonian

Where Acastidae and its relatives were recorded in the Devonian.

Found in the same rock

1,614 taxa

The Paleobiology Database records 490 sites for Acastidae, and this reads 240 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

163 references

Each of the 805 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. 151 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 Acastidae

Credit
Daderot
Licence
CC0
Commercial use
the licence allows it

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 itAcastoidea through timeFormations of the DevonianThe world it lived on

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