Spencella

Spencella

Vorwald, G. R. · 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
PtychopariidaePBDB
Diet
carnivorePBDB, for Trilobita
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
well-developedPBDB, for Ptychopariidae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 5.2 million years on record.

The record covers at least 509.7 Mya to 504.5 Mya. No occurrence read is dated outside 515.3 Mya to 486.85 Mya.

Cambrian — about 20 of 20 occurrencesCambrianOrdovician — about 0 of 20 occurrences516–515 Mya — about 0.1 occurrences515–514 Mya — about 0.2 occurrences514–513 Mya — about 0.2 occurrences513–512 Mya — about 0.2 occurrences512–511 Mya — about 0.2 occurrences511–510 Mya — about 0.2 occurrences510–509 Mya — about 2 occurrences509–508 Mya — about 2 occurrences508–507 Mya — about 3 occurrences507–506 Mya — about 3 occurrences506–505 Mya — about 3 occurrences505–504 Mya — about 1 occurrence504–503 Mya — about 0.8 occurrences503–502 Mya — about 0.8 occurrences502–501 Mya — about 0.8 occurrences501–500 Mya — about 0.8 occurrences500–499 Mya — about 0.8 occurrences499–498 Mya — about 0.8 occurrences498–497 Mya — about 0.8 occurrences497–496 Mya — about 0.1 occurrences496–495 Mya — about 0.1 occurrences495–494 Mya — about 0.1 occurrences494–493 Mya — about 0.1 occurrences493–492 Mya — about 0.1 occurrences492–491 Mya — about 0.1 occurrences491–490 Mya — about 0.1 occurrences490–489 Mya — about 0.1 occurrences489–488 Mya — about 0.1 occurrences488–487 Mya — about 0.1 occurrences487–486 Mya — about 0.0 occurrences509.7 Mya504.5 Mya515.9 Mya486.3 Mya

20 occurrences of Spencella 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

20 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

7 formations

Trailer — 39.88°N, 113.05°WHillard Limestone — 64.97°N, 141.18°WHillard Limestone — 65.20°N, 141.43°WShallow Bay — 49.25°N, 65.57°WShady — 36.85°N, 80.91°WSwasey Limestone — 39.54°N, 112.92°WWheeler — 39.52°N, 113.00°WPika — 52.27°N, 116.45°W

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The named rock units Spencella has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Spencella and its relatives

Cambrian

Where Spencella and its relatives were recorded in the Cambrian.

Found in the same rock

61 taxa

The Paleobiology Database records 11 sites for Spencella, 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

8 references

Each of the 20 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 Spencella

Source
GBIF
Credit
Vorwald, G. R.
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 itPtychopariidae through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Rasetti 1963