Barrandia

Barrandia

via iDigBio · via iDigBio. 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
NileidaePBDB
Diet
carnivorePBDB, for Trilobita
Life habit
low-level epifaunalPBDB, for Asaphida
Motility
fast-movingPBDB, for Asaphida
Vision
well-developedPBDB, for Nileidae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 13 million years on record.

The record covers at least 471.3 Mya to 458.2 Mya. No occurrence read is dated outside 477.1 Mya to 452.8 Mya.

Ordovician — about 44 of 44 occurrencesOrdovician478–477 Mya — about 0.1 occurrences477–476 Mya — about 0.2 occurrences476–475 Mya — about 0.2 occurrences475–474 Mya — about 0.4 occurrences474–473 Mya — about 0.4 occurrences473–473 Mya — about 0.4 occurrences473–472 Mya — about 0.4 occurrences472–471 Mya — about 1 occurrence471–470 Mya — about 2 occurrences470–469 Mya — about 2 occurrences469–468 Mya — about 1 occurrence468–467 Mya — about 2 occurrences467–467 Mya — about 3 occurrences467–466 Mya — about 3 occurrences466–465 Mya — about 3 occurrences465–464 Mya — about 3 occurrences464–463 Mya — about 3 occurrences463–462 Mya — about 3 occurrences462–462 Mya — about 3 occurrences462–461 Mya — about 3 occurrences461–460 Mya — about 2 occurrences460–459 Mya — about 2 occurrences459–458 Mya — about 2 occurrences458–457 Mya — about 2 occurrences457–457 Mya — about 0.4 occurrences457–456 Mya — about 0.2 occurrences456–455 Mya — about 0.2 occurrences455–454 Mya — about 0.2 occurrences454–453 Mya — about 0.2 occurrences453–452 Mya — about 0.1 occurrences471.3 Mya458.2 Mya477.6 Mya452.3 Mya

44 occurrences of Barrandia 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

44 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

Llanfallteg — 52.00°N, 5.00°WLlanfallteg — 51.83°N, 4.35°WLlanfallteg — 51.82°N, 4.48°WLlanfallteg — 51.83°N, 4.67°WLlanfallteg — 51.85°N, 4.92°WLehman — 38.78°N, 113.59°WLehman — 38.60°N, 113.75°WLehman — 38.87°N, 113.42°WLehman — 38.88°N, 113.47°WKanosh Shale — 38.78°N, 113.59°WLlanfawr Mudstone — 52.23°N, 3.37°WPontyfenni — 52.00°N, 5.00°WKnockerk — 53.75°N, 6.55°WWah Wah — 38.85°N, 113.46°WSwan Peak — 38.78°N, 113.59°WWatson Ranch Quartzite — 38.60°N, 113.75°W

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The named rock units Barrandia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 13 occurrences have no formation on record, which is common for older literature.

Barrandia and its relatives

Ordovician

Where Barrandia and its relatives were recorded in the Ordovician.

Found in the same rock

149 taxa

The Paleobiology Database records 42 sites for Barrandia, 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 44 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 Barrandia

Source
iDigBio
Credit
via iDigBio
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Barrandia was found in MorphoSource and Sketchfab.

Smithsonian Open Access was 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 itNileidae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. M'Coy 1849