Opisthotreta

Opisthotreta

Rowell, Albert J.; Rees, Margaret N. · CC BY 4.0 · via GBIF. 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
AcrotretidaePBDB
Diet
suspension feederPBDB, for Acrotretida
Life habit
epifaunalPBDB, for Acrotretida
Motility
stationary, attachedPBDB, for Acrotretida
Vision
blindPBDB, for Lingulata
Environment
marinePBDB, for Lophophorata

Time the record covers

At least 2.5 million years on record.

The record covers at least 499.5 Mya to 497 Mya. No occurrence read is dated outside 538.8 Mya to 486.85 Mya.

Cambrian — about 61 of 61 occurrencesCambrianOrdovician — about 0 of 61 occurrences540–538 Mya — about 0.1 occurrences538–536 Mya — about 0.3 occurrences536–534 Mya — about 0.3 occurrences534–533 Mya — about 0.3 occurrences533–531 Mya — about 0.3 occurrences531–529 Mya — about 0.3 occurrences529–527 Mya — about 0.3 occurrences527–525 Mya — about 0.3 occurrences525–524 Mya — about 0.3 occurrences524–522 Mya — about 0.3 occurrences522–520 Mya — about 0.3 occurrences520–518 Mya — about 0.3 occurrences518–516 Mya — about 0.3 occurrences516–515 Mya — about 0.3 occurrences515–513 Mya — about 0.3 occurrences513–511 Mya — about 0.3 occurrences511–509 Mya — about 0.3 occurrences509–507 Mya — about 0.3 occurrences507–506 Mya — about 0.5 occurrences506–504 Mya — about 3 occurrences504–502 Mya — about 6 occurrences502–500 Mya — about 8 occurrences500–498 Mya — about 20 occurrences498–497 Mya — about 16 occurrences497–495 Mya — about 0.4 occurrences495–493 Mya — about 0.4 occurrences493–491 Mya — about 0.4 occurrences491–489 Mya — about 0.4 occurrences489–488 Mya — about 0.4 occurrences488–486 Mya — about 0.1 occurrences499.5 Mya – 497 Mya540 Mya486 Mya

61 occurrences of Opisthotreta 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

61 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

Riley — 30.64°N, 99.26°WRiley — 30.92°N, 98.61°WRiley — 30.81°N, 98.28°WRiley — 30.91°N, 99.00°WRiley — 30.76°N, 99.41°WRiley — 30.54°N, 99.09°WRiley — 30.49°N, 98.52°WRiley — 30.81°N, 98.37°WCampo Pisano — 39.43°N, 8.48°EConasauga — 33.00°N, 87.00°WConasauga — 34.00°N, 86.00°WWoods Hollow Boulders — 30.03°N, 103.31°WDeadwood — 50.69°N, 113.40°WNopah — 39.00°N, 115.00°WShannon — 23.61°S, 134.49°EHamburg — 39.40°N, 114.77°WLincoln Peak — 38.88°N, 114.30°W

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

Opisthotreta and its relatives

Cambrian

Where Opisthotreta and its relatives were recorded in the Cambrian.

Found in the same rock

77 taxa

The Paleobiology Database records 61 sites for Opisthotreta, 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

7 references

Each of the 61 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 content1

Picture of Opisthotreta

Source
GBIF
Credit
Rowell, Albert J.; Rees, Margaret N.
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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

Keep going

What may have been alongside itAcrotretidae through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Palmer 1954