Esmeraldina

Esmeraldina is an extinct genus of holmiid trilobites. It lived during the late Atdabanian stage, which lasted from 530 to 524 million years ago during the early part of the Cambrian Period.

No picture of Esmeraldina was found. Wikipedia, Wikidata and iDigBio were searched and had none. 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 Esmeraldina, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
HolmiidaePBDB
Diet
deposit feederPBDB, for Redlichiida
Life habit
low-level epifaunalPBDB, for Redlichiida
Motility
fast-movingPBDB, for Redlichiida
Vision
well-developedPBDB, for Holmiidae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 700 thousand years on record.

The record covers at least 516 Mya to 515.3 Mya. No occurrence read is dated outside 538.8 Mya to 506.5 Mya.

Cambrian — about 41 of 41 occurrencesCambrian539–538 Mya — about 0.0 occurrences538–537 Mya — about 0.0 occurrences537–536 Mya — about 0.0 occurrences536–535 Mya — about 0.0 occurrences535–534 Mya — about 0.0 occurrences534–533 Mya — about 0.0 occurrences533–532 Mya — about 0.0 occurrences532–530 Mya — about 0.0 occurrences530–529 Mya — about 0.0 occurrences529–528 Mya — about 0.0 occurrences528–527 Mya — about 0.0 occurrences527–526 Mya — about 0.0 occurrences526–525 Mya — about 0.0 occurrences525–524 Mya — about 0.0 occurrences524–523 Mya — about 0.0 occurrences523–522 Mya — about 0.0 occurrences522–520 Mya — about 0.2 occurrences520–519 Mya — about 5 occurrences519–518 Mya — about 8 occurrences518–517 Mya — about 8 occurrences517–516 Mya — about 8 occurrences516–515 Mya — about 5 occurrences515–514 Mya — about 1 occurrence514–513 Mya — about 1 occurrence513–511 Mya — about 1 occurrence511–510 Mya — about 1 occurrence510–509 Mya — about 0.7 occurrences509–508 Mya — about 0.0 occurrences508–507 Mya — about 0.0 occurrences507–506 Mya — about 0.0 occurrences516 Mya – 515.3 Mya539.4 Mya505.9 Mya

41 occurrences of Esmeraldina 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

41 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

5 formations

Campito — 37.69°N, 117.73°WCampito — 37.53°N, 117.53°WCampito — 37.72°N, 117.32°WCampito — 37.86°N, 117.87°WCampito — 37.02°N, 117.96°WKinzers — 40.04°N, 76.31°WKinzers — 40.00°N, 76.73°WKinzers — 40.12°N, 76.33°WPoleta — 37.87°N, 117.87°WPoleta — 37.32°N, 117.27°WMonkton Quartzite — 44.54°N, 73.20°WSekwi — 63.52°N, 128.17°W

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

Esmeraldina and its relatives

Cambrian

Where Esmeraldina and its relatives were recorded in the Cambrian.

Found in the same rock

66 taxa

The Paleobiology Database records 12 sites for Esmeraldina, 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

9 references

Each of the 41 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 Esmeraldina was found. Wikipedia, Wikidata and iDigBio were searched and had none.

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 Esmeraldina, or no answer at all. This entry cannot say which.

No 3D scan of Esmeraldina 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 itHolmiidae through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Resser and Howel 1938