Alsataspididae

Alsataspididae

Dwergenpaartje · CC BY-SA 3.0 · 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
TrinucleidaPBDB
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 least 38 million years on record.

The record covers at least 497 Mya to 458.2 Mya. No occurrence read is dated outside 506.5 Mya to 449.5 Mya.

Cambrian — about 91 of 195 occurrencesCambrianOrdovician — about 104 of 195 occurrencesOrdovician508–506 Mya — about 0.3 occurrences506–504 Mya — about 0.6 occurrences504–502 Mya — about 0.6 occurrences502–500 Mya — about 6 occurrences500–498 Mya — about 15 occurrences498–496 Mya — about 6 occurrences496–494 Mya — about 4 occurrences494–492 Mya — about 18 occurrences492–490 Mya — about 16 occurrences490–488 Mya — about 16 occurrences488–486 Mya — about 12 occurrences486–484 Mya — about 13 occurrences484–482 Mya — about 20 occurrences482–480 Mya — about 14 occurrences480–478 Mya — about 15 occurrences478–476 Mya — about 9 occurrences476–474 Mya — about 5 occurrences474–472 Mya — about 6 occurrences472–470 Mya — about 4 occurrences470–468 Mya — about 2 occurrences468–466 Mya — about 2 occurrences466–464 Mya — about 2 occurrences464–462 Mya — about 2 occurrences462–460 Mya — about 1 occurrence460–458 Mya — about 0.3 occurrences458–456 Mya — about 2 occurrences456–454 Mya — about 0.5 occurrences454–452 Mya — about 0.4 occurrences452–450 Mya — about 0.2 occurrences450–448 Mya — about 0.1 occurrences497 Mya458.2 Mya508 Mya448 Mya

195 occurrences of Alsataspididae on record, most of them in the Ordovician. 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

195 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

48 formations

Huaqiao — 28.39°N, 109.53°EHuaqiao — 28.72°N, 109.97°EHuaqiao — 29.13°N, 110.95°ESanta Rosita — 23.57°S, 65.45°WSanta Rosita — 23.75°S, 65.54°WSanta Rosita — 24.49°S, 65.55°WSanta Rosita — 24.50°S, 65.75°WSanta Rosita — 22.21°S, 64.89°WSanta Rosita — 23.58°S, 65.34°WSanta Rosita — 22.76°S, 65.20°WSanta Rosita — 22.51°S, 65.10°WBestogai — 43.53°N, 69.95°EMachari — 37.31°N, 128.44°EOgon'or — 71.28°N, 127.63°ETøyen — 60.00°N, 9.97°ETøyen — 59.73°N, 9.87°ETøyen — 59.65°N, 9.65°ELlanfallteg — 52.00°N, 5.00°WLlanfallteg — 51.83°N, 4.65°WLlanfallteg — 51.85°N, 4.92°WShenjiawan — 29.13°N, 110.95°EVolcancito — 28.87°S, 67.75°WVolcancito — 29.33°S, 67.80°WVolcancito — 28.87°S, 67.69°WRabbitkettle — 64.59°N, 130.01°WShallow Bay — 49.83°N, 57.87°WShallow Bay — 49.92°N, 57.90°WValhallfonna — 79.80°N, 17.76°EHope Shale — 52.60°N, 2.95°WHope Shale — 52.55°N, 3.03°WBjorkasholmen — 59.14°N, 11.18°ECeratopyge — 58.00°N, 14.00°ECeratopyge — 57.00°N, 17.00°ECeratopyge — 55.58°N, 14.13°EChefu — 27.48°N, 109.20°ESiyangshan — 28.85°N, 118.65°ESiyangshan — 28.90°N, 118.50°EMilina — 49.80°N, 13.80°EGuanacuna — 22.00°S, 65.00°WModder River Siltstone — 42.42°S, 145.35°EKarsha — 33.15°N, 77.18°EBjørkåsholmen — 59.97°N, 9.99°EBjørkåsholmen — 60.00°N, 9.97°EBjørkåsholmen — 59.92°N, 10.73°ERupasca — 24.75°S, 65.27°W

Loading coastlines…

The named rock units Alsataspididae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 24 further formations hold fewer occurrences each and are not listed. 22 occurrences have no formation on record, which is common for older literature.

Alsataspididae and its relatives

Ordovician

Where Alsataspididae and its relatives were recorded in the Ordovician.

Found in the same rock

658 taxa

The Paleobiology Database records 122 sites for Alsataspididae, 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

57 references

Each of the 195 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. 45 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 Alsataspididae

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

No 3D scan of Alsataspididae 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.

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

Keep going

What may have been alongside itTrinucleida through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Turner 1940