Annamitella

Annamitella is a genus of trilobite, extinct marine arthropods. Annamitella lived from the Arenig to the Llandeilo age of the Ordovician Period from 478.6 to 460.9 million years ago.

No picture of Annamitella 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 Annamitella, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
LeiostegiidaePBDB
Diet
carnivorePBDB, for Corynexochida
Life habit
nektobenthicPBDB, for Corynexochida
Motility
actively mobilePBDB, for Corynexochida
Vision
well-developedPBDB, for Leiostegiidae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 16 million years on record.

The record covers at least 477.1 Mya to 461.1 Mya. No occurrence read is dated outside 486.4 Mya to 458.2 Mya.

Cambrian — about 0 of 45 occurrencesOrdovician — about 45 of 45 occurrencesOrdovician487–486 Mya — about 0.0 occurrences486–485 Mya — about 0.1 occurrences485–484 Mya — about 0.1 occurrences484–483 Mya — about 0.1 occurrences483–482 Mya — about 0.1 occurrences482–481 Mya — about 0.1 occurrences481–480 Mya — about 0.1 occurrences480–479 Mya — about 0.1 occurrences479–478 Mya — about 0.1 occurrences478–477 Mya — about 0.1 occurrences477–476 Mya — about 2 occurrences476–475 Mya — about 3 occurrences475–474 Mya — about 3 occurrences474–473 Mya — about 3 occurrences473–472 Mya — about 3 occurrences472–471 Mya — about 3 occurrences471–470 Mya — about 3 occurrences470–469 Mya — about 2 occurrences469–468 Mya — about 3 occurrences468–467 Mya — about 2 occurrences467–466 Mya — about 2 occurrences466–465 Mya — about 2 occurrences465–464 Mya — about 2 occurrences464–464 Mya — about 2 occurrences464–463 Mya — about 2 occurrences463–462 Mya — about 2 occurrences462–461 Mya — about 2 occurrences461–460 Mya — about 2 occurrences460–459 Mya — about 2 occurrences459–458 Mya — about 0.9 occurrences477.1 Mya461.1 Mya487 Mya457.6 Mya

45 occurrences of Annamitella 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

45 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

16 formations

San Juan — 32.00°S, 69.00°WSan Juan — 30.00°S, 69.00°WSan Juan — 31.00°S, 69.00°WSan Juan — 29.76°S, 68.65°WSan Juan — 29.77°S, 68.63°WSuri — 29.00°S, 68.00°WSuri — 28.00°S, 68.00°WDawan — 30.90°N, 111.39°ENora — 23.26°S, 138.61°ENora — 23.49°S, 138.76°ENora — 22.97°S, 137.85°EShihtzupu — 27.76°N, 106.92°EShin Brook — 46.11°N, 68.61°WUzunbulak — 43.92°N, 75.25°EUzunbulak — 43.91°N, 75.44°EHonghuayuan — 33.00°N, 111.00°ELaozai — 23.00°N, 104.00°EXiaqiaojia — 26.00°N, 102.00°EMolles — 29.00°S, 68.00°WYinGou — 36.00°N, 102.00°EDuoQuanShan — 38.00°N, 95.00°EYehli — 41.84°N, 126.81°EAlakul — 44.83°N, 74.10°EMadaoyu — 28.78°N, 109.84°E

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The named rock units Annamitella has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 occurrences have no formation on record, which is common for older literature.

Annamitella and its relatives

Ordovician

Where Annamitella and its relatives were recorded in the Ordovician.

Found in the same rock

319 taxa

The Paleobiology Database records 45 sites for Annamitella, 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

26 references

Each of the 45 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. 14 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 content0

No picture of Annamitella 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 Annamitella, 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 itLeiostegiidae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Mansuy 1920