Amphigeisina

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

On record

Recorded, not inferred
Sits inside
ProtoconodontaPBDB
Diet
carnivorePBDB, for Chaetognatha
Life habit
nektonicPBDB, for Chaetognatha
Motility
actively mobilePBDB, for Chaetognatha

Time the record covers

At least 12 million years on record.

The record covers at least 521 Mya to 508.2 Mya. No occurrence read is dated outside 525.5 Mya to 504.5 Mya.

Cambrian — about 31 of 31 occurrencesCambrian526–525 Mya — about 0.1 occurrences525–525 Mya — about 0.2 occurrences525–524 Mya — about 0.2 occurrences524–523 Mya — about 0.2 occurrences523–522 Mya — about 0.2 occurrences522–522 Mya — about 0.2 occurrences522–521 Mya — about 0.5 occurrences521–520 Mya — about 2 occurrences520–519 Mya — about 2 occurrences519–519 Mya — about 2 occurrences519–518 Mya — about 2 occurrences518–517 Mya — about 2 occurrences517–516 Mya — about 2 occurrences516–516 Mya — about 2 occurrences516–515 Mya — about 1.0 occurrences515–514 Mya — about 1.0 occurrences514–514 Mya — about 1.0 occurrences514–513 Mya — about 1.0 occurrences513–512 Mya — about 1.0 occurrences512–511 Mya — about 0.8 occurrences511–511 Mya — about 0.8 occurrences511–510 Mya — about 0.8 occurrences510–509 Mya — about 0.8 occurrences509–508 Mya — about 0.8 occurrences508–508 Mya — about 2 occurrences508–507 Mya — about 2 occurrences507–506 Mya — about 2 occurrences506–505 Mya — about 1 occurrence505–505 Mya — about 1 occurrence505–504 Mya — about 0.4 occurrences521 Mya508.2 Mya526 Mya504 Mya

31 occurrences of Amphigeisina on record, most of them in the Cambrian. 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

31 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

9 formations

Shabakty — 43.47°N, 69.87°EShabakty — 43.62°N, 69.73°EShabakty — 43.68°N, 69.68°EShabakty — 43.60°N, 69.45°ELower Comley — 52.56°N, 2.76°WLower Comley — 52.58°N, 2.67°WLower Comley — 52.54°N, 2.80°WLower Comley — 52.65°N, 2.73°WKuonamka — 70.74°N, 112.98°EKuonamka — 70.22°N, 113.70°EBeshtash — 42.17°N, 72.00°EHartshill — 52.57°N, 1.55°WAlum Shale — 55.52°N, 14.35°EGislov — 55.52°N, 14.35°EExsulans Limestone — 55.52°N, 14.35°EShuijingtuo — 32.53°N, 107.92°E

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

Amphigeisina and its relatives

Cambrian

Where Amphigeisina and its relatives were recorded in the Cambrian.

Found in the same rock

178 taxa

The Paleobiology Database records 30 sites for Amphigeisina, 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

6 references

Each of the 31 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 Amphigeisina was found. Wikidata and iDigBio were searched and had none.

Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

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

No 3D scan of Amphigeisina 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 itProtoconodonta through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Bengtson 1976