Richardsonella

Richardsonella

via iDigBio · CC BY · 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
RemopleurididaePBDB
Diet
carnivorePBDB, for Trilobita
Life habit
nektobenthicPBDB, for Remopleurididae
Motility
actively mobilePBDB, for Remopleurididae
Vision
well-developedPBDB, for Remopleurididae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 7.8 million years on record.

The record covers at least 494.2 Mya to 486.4 Mya. No occurrence read is dated outside 497 Mya to 477.1 Mya.

Cambrian — about 17 of 20 occurrencesCambrianOrdovician — about 3 of 20 occurrencesOrdovician498–497 Mya — about 0.1 occurrences497–496 Mya — about 0.5 occurrences496–495 Mya — about 0.5 occurrences495–495 Mya — about 0.5 occurrences495–494 Mya — about 0.6 occurrences494–493 Mya — about 0.7 occurrences493–493 Mya — about 0.7 occurrences493–492 Mya — about 0.7 occurrences492–491 Mya — about 0.7 occurrences491–491 Mya — about 1.0 occurrences491–490 Mya — about 2 occurrences490–489 Mya — about 2 occurrences489–488 Mya — about 2 occurrences488–488 Mya — about 2 occurrences488–487 Mya — about 2 occurrences487–486 Mya — about 0.7 occurrences486–486 Mya — about 0.2 occurrences486–485 Mya — about 0.2 occurrences485–484 Mya — about 0.2 occurrences484–484 Mya — about 0.2 occurrences484–483 Mya — about 0.2 occurrences483–482 Mya — about 0.2 occurrences482–481 Mya — about 0.2 occurrences481–481 Mya — about 0.2 occurrences481–480 Mya — about 0.2 occurrences480–479 Mya — about 0.2 occurrences479–479 Mya — about 0.2 occurrences479–478 Mya — about 0.2 occurrences478–477 Mya — about 0.2 occurrences477–477 Mya — about 0.1 occurrences494.2 Mya486.4 Mya497.5 Mya476.6 Mya

20 occurrences of Richardsonella 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

8 formations

Gola Beds — 22.49°S, 140.46°ELevis — 46.78°N, 71.20°WGorge — 44.93°N, 73.05°WTucumilla — 21.00°S, 65.00°WTinu — 17.03°N, 96.57°WChatsworth Limestone — 22.53°S, 140.28°EJones Ridge Limeston — 65.12°N, 141.02°WWindfall — 39.50°N, 115.99°W

Loading coastlines…

The named rock units Richardsonella has been recovered from, largest first. Drawn where the rock is now, not where it formed. 10 occurrences have no formation on record, which is common for older literature.

Richardsonella and its relatives

Cambrian

Where Richardsonella and its relatives were recorded in the Cambrian.

Found in the same rock

134 taxa

The Paleobiology Database records 18 sites for Richardsonella, 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

12 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 Richardsonella

Source
iDigBio
Credit
via iDigBio
Licence
CC BY
Commercial use
the licence allows it

No 3D scan of Richardsonella 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.

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

Keep going

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

Occurrence data from the Paleobiology Database, CC BY 4.0. Raymond 1924