Eoredlichia

Eoredlichia is an extinct genus of trilobite of average to large size. It lived during the early Cambrian in the Chengjiang fauna of Yunnan, China, and in Australia and Thailand. Eoredlichia is compounded of the Greek ἠώς and Redlichia, a later but related genus, so it means "early Redlichia". The species epithet intermedia means intermediate, indicating it is morphologically intermediate between other species. Eofallotaspis gives rise to Lemdadella, and thence to Eoredlichia and the other Redlichiidae.

Eoredlichia

Dwergenpaartje · CC BY-SA 3.0 · 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
RedlichiidaePBDB
Diet
carnivorePBDB
Life habit
epifaunalPBDB
Motility
actively mobilePBDB
Vision
well-developedPBDB, for Redlichiidae
Environment
marinePBDB, for Trilobita

Time the record covers

At most 33 million years on record.

Every occurrence read is dated to somewhere between 538.8 Mya and 506.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Cambrian — about 61 of 61 occurrencesCambrian539–538 Mya — about 0.0 occurrences538–537 Mya — about 0.0 occurrences537–536 Mya — about 0.0 occurrences536–535 Mya — about 0.0 occurrences535–534 Mya — about 0.0 occurrences534–533 Mya — about 0.0 occurrences533–532 Mya — about 0.0 occurrences532–530 Mya — about 0.0 occurrences530–529 Mya — about 0.1 occurrences529–528 Mya — about 0.1 occurrences528–527 Mya — about 0.1 occurrences527–526 Mya — about 0.1 occurrences526–525 Mya — about 0.1 occurrences525–524 Mya — about 0.1 occurrences524–523 Mya — about 0.1 occurrences523–522 Mya — about 0.1 occurrences522–520 Mya — about 6 occurrences520–519 Mya — about 10 occurrences519–518 Mya — about 10 occurrences518–517 Mya — about 10 occurrences517–516 Mya — about 10 occurrences516–515 Mya — about 7 occurrences515–514 Mya — about 3 occurrences514–513 Mya — about 2 occurrences513–511 Mya — about 0.8 occurrences511–510 Mya — about 0.0 occurrences510–509 Mya — about 0.0 occurrences509–508 Mya — about 0.0 occurrences508–507 Mya — about 0.0 occurrences507–506 Mya — about 0.0 occurrences539.4 Mya505.9 Mya

61 occurrences of Eoredlichia 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

61 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

11 formations

Yuanshan — 24.81°N, 102.58°EYuanshan — 24.67°N, 102.65°EYuanshan — 24.84°N, 102.41°EYuanshan — 25.50°N, 102.40°EYuanshan — 24.00°N, 102.00°EYuanshan — 24.72°N, 102.55°EYu'anshan — 25.55°N, 102.40°EYu'anshan — 24.77°N, 102.58°EAjax Limestone — 30.59°S, 138.33°EMernmerna — 31.19°S, 138.87°EAmouslek — 30.40°N, 8.83°WJiulaodong — 29.50°N, 103.40°EYuxiansi — 29.33°N, 103.47°EPedroche — 37.95°N, 4.77°WShuijingtuo — 34.32°N, 108.70°EWilkawillina Limestone — 31.30°S, 138.93°EKuochiapa — 33.08°N, 106.93°E

Loading coastlines…

The named rock units Eoredlichia 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.

Eoredlichia and its relatives

Cambrian

Where Eoredlichia and its relatives were recorded in the Cambrian.

Found in the same rock

342 taxa

The Paleobiology Database records 43 sites for Eoredlichia, 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

19 references

Each of the 61 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. 7 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 content2

Picture of Eoredlichia

Credit
Dwergenpaartje
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution-NonCommercial
Commercial use
the licence does not allow it

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 itRedlichiidae through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Chang 1950