Porterfieldia

A picture published with the record for Porterfieldia. What it shows has not been checked.

Smithsonian Institution · CC0 · via Smithsonian. 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
OleninaePBDB
Diet
carnivorePBDB, for Trilobita
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
blindPBDB
Environment
marinePBDB, for Trilobita

Time the record covers

At least 17 million years on record.

The record covers at least 471.3 Mya to 454 Mya. No occurrence read is dated outside 477.1 Mya to 449.5 Mya.

Ordovician — about 52 of 52 occurrencesOrdovician478–477 Mya — about 0.5 occurrences477–476 Mya — about 1 occurrence476–475 Mya — about 1 occurrence475–474 Mya — about 1 occurrence474–473 Mya — about 1 occurrence473–472 Mya — about 1 occurrence472–471 Mya — about 2 occurrences471–470 Mya — about 2 occurrences470–469 Mya — about 2 occurrences469–468 Mya — about 2 occurrences468–467 Mya — about 2 occurrences467–466 Mya — about 2 occurrences466–465 Mya — about 2 occurrences465–464 Mya — about 2 occurrences464–463 Mya — about 2 occurrences463–462 Mya — about 2 occurrences462–461 Mya — about 2 occurrences461–460 Mya — about 3 occurrences460–459 Mya — about 4 occurrences459–459 Mya — about 4 occurrences459–458 Mya — about 4 occurrences458–457 Mya — about 3 occurrences457–456 Mya — about 2 occurrences456–455 Mya — about 2 occurrences455–454 Mya — about 1 occurrence454–453 Mya — about 1 occurrence453–452 Mya — about 0.5 occurrences452–451 Mya — about 0.3 occurrences451–450 Mya — about 0.3 occurrences450–449 Mya — about 0.1 occurrences471.3 Mya454 Mya477.7 Mya448.9 Mya

52 occurrences of Porterfieldia 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

52 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

15 formations

Table Cove — 50.36°N, 57.54°WTable Cove — 48.58°N, 58.70°WTable Cove — 50.18°N, 57.62°WLas Aguaditas — 30.33°S, 68.80°WLas Aguaditas — 29.08°S, 68.10°WBalclatchie — 55.24°N, 4.78°WBalclatchie — 54.84°N, 4.05°WAcoite — 24.00°S, 66.00°WCarmarthen — 51.83°N, 4.28°WSan Juan — 30.00°S, 69.00°WLos Azules — 30.00°S, 69.00°WLos Azules — 30.58°S, 68.85°WValhallfonna — 79.80°N, 17.76°ESaergan — 40.64°N, 79.50°ERoad River — 64.50°N, 130.00°WContaya — 7.15°S, 74.57°WCaparo — 8.00°N, 71.00°WDoularg — 55.20°N, 4.74°WGualcamayo — 28.75°S, 66.65°WGoldwyer — 18.37°S, 122.88°E

Loading coastlines…

The named rock units Porterfieldia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.

Porterfieldia and its relatives

Ordovician

Where Porterfieldia and its relatives were recorded in the Ordovician.

Found in the same rock

407 taxa

The Paleobiology Database records 47 sites for Porterfieldia, 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

22 references

Each of the 52 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. 10 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 content1

Picture of Porterfieldia

Source
Smithsonian
Credit
Smithsonian Institution
Licence
CC0 — this site’s default, not the record’s
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 itOleninae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Cooper 1953