Redlichia

Redlichia is a genus of redlichiid trilobite in the family Redlichiidae, with large to very large species. They are characterised by a flat body plan, prominent genial spines and for some species, a distinguished axial spine. Fossils of various species are found in Lower Cambrian (Toyonian)-aged marine strata from China, Korea, Pakistan, the Himalayas, Iran, Spain, southern Siberia, and Antarctica, and from Middle Cambrian (Ordian)-aged marine strata of Australia.

Redlichia

Uncredited · via Wikipedia/Commons. 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
RedlichiinaePBDB
Diet
deposit feederPBDB, for Redlichiidae
Life habit
nektobenthicPBDB, for Redlichiidae
Motility
actively mobilePBDB, for Redlichiidae
Vision
well-developedPBDB, for Redlichiidae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 9.5 million years on record.

The record covers at least 516 Mya to 506.5 Mya. No occurrence read is dated outside 538.8 Mya to 497 Mya.

Cambrian — about 137 of 137 occurrencesCambrian540–538 Mya — about 0.2 occurrences538–537 Mya — about 0.4 occurrences537–535 Mya — about 0.4 occurrences535–534 Mya — about 0.4 occurrences534–532 Mya — about 0.4 occurrences532–531 Mya — about 0.4 occurrences531–529 Mya — about 0.4 occurrences529–528 Mya — about 0.4 occurrences528–527 Mya — about 0.4 occurrences527–525 Mya — about 0.4 occurrences525–524 Mya — about 0.4 occurrences524–522 Mya — about 0.4 occurrences522–521 Mya — about 0.9 occurrences521–519 Mya — about 4 occurrences519–518 Mya — about 4 occurrences518–516 Mya — about 4 occurrences516–515 Mya — about 11 occurrences515–514 Mya — about 22 occurrences514–512 Mya — about 25 occurrences512–511 Mya — about 15 occurrences511–509 Mya — about 16 occurrences509–508 Mya — about 16 occurrences508–506 Mya — about 12 occurrences506–505 Mya — about 0.8 occurrences505–503 Mya — about 0.6 occurrences503–502 Mya — about 0.5 occurrences502–501 Mya — about 0.5 occurrences501–499 Mya — about 0.5 occurrences499–498 Mya — about 0.5 occurrences498–496 Mya — about 0.2 occurrences516 Mya506.5 Mya539.6 Mya496.2 Mya

137 occurrences of Redlichia 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

137 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

36 formations

Wulongqing — 24.95°N, 102.80°EWulongqing — 25.68°N, 102.17°EMantou — 41.25°N, 124.25°EMantou — 41.25°N, 124.47°EMantou — 41.20°N, 123.72°EMantou — 34.46°N, 117.38°EMantou — 34.24°N, 117.11°EKaili — 26.73°N, 108.42°EBalang — 26.65°N, 107.95°EBalang — 27.17°N, 108.54°EBalang — 26.39°N, 107.69°EBalang — 26.24°N, 107.62°EBalang — 28.42°N, 109.42°EManto — 34.75°N, 110.62°EManto — 34.63°N, 112.97°EManto — 34.80°N, 111.90°EWangjiadian — 33.13°N, 111.47°EWangjiadian — 33.23°N, 110.88°EJianchang — 41.25°N, 124.25°EJianchang — 41.25°N, 124.47°EJianchang — 41.20°N, 123.72°EJindingshan — 27.55°N, 106.23°EMernmerna Formation — 31.01°S, 139.24°EQingxudong — 28.05°N, 109.07°EQingxudong — 27.47°N, 107.40°ETindall Limestone — 14.50°S, 132.17°ETindall Limestone — 13.42°S, 130.58°ETindall Limestone — 13.08°S, 130.92°EMernmerna — 31.19°S, 138.87°EShabakty — 43.68°N, 69.68°EShabakty — 43.60°N, 69.45°EBeetle Creek — 20.83°S, 139.06°ELolab — 34.51°N, 74.34°ECoonigan — 31.17°S, 141.32°ECoonigan — 31.31°S, 142.18°ETsinghsutung — 26.73°N, 108.40°ETsanglangpu — 25.07°N, 102.68°EBystrinskaya — 43.11°N, 74.78°EKeteme — 66.40°N, 112.28°EQiongzhusi — 25.03°N, 102.72°EBilly Creek — 34.92°S, 138.58°EWirrealpa Limestone — 34.92°S, 138.58°ETal — 30.43°N, 78.18°E

Loading coastlines…

The named rock units Redlichia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 further formations hold fewer occurrences each and are not listed. 2 occurrences have no formation on record, which is common for older literature.

Redlichia and its relatives

Cambrian

Where Redlichia and its relatives were recorded in the Cambrian.

Found in the same rock

410 taxa

The Paleobiology Database records 59 sites for Redlichia, 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

42 references

Each of the 137 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. 30 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 Redlichia

Credit
nobody named on the record
Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record

No 3D scan of Redlichia 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.

The description on this site

Licence
CC BY-SA 4.0

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

Keep going

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

Occurrence data from the Paleobiology Database, CC BY 4.0. Cossmann 1902