Dicerodiscus

Dicerodiscus is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the early part of the Botomian stage, in China. Four species have been assigned to it. Dicerodiscus is unique for an eodiscoid in having conspicuous and curved spines that are attached anteriorly, and at their base are directed outward perpendicular to the midline, before gradually bending further backwards.

Dicerodiscus

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
HebediscidaePBDB
Diet
detritivorePBDB, for Agnostida
Life habit
epifaunalPBDB, for Agnostida
Motility
slow-movingPBDB, for Agnostida

Time the record covers

At most 8.9 million years on record.

The one occurrence read is dated to somewhere between 521 Mya and 512.1 Mya, which is a dating window rather than a span.

Cambrian — about 1 of 1 occurrenceCambrian521–521 Mya — about 0.0 occurrences521–521 Mya — about 0.0 occurrences521–520 Mya — about 0.0 occurrences520–520 Mya — about 0.0 occurrences520–520 Mya — about 0.0 occurrences520–519 Mya — about 0.0 occurrences519–519 Mya — about 0.0 occurrences519–519 Mya — about 0.0 occurrences519–518 Mya — about 0.0 occurrences518–518 Mya — about 0.0 occurrences518–518 Mya — about 0.0 occurrences518–517 Mya — about 0.0 occurrences517–517 Mya — about 0.0 occurrences517–517 Mya — about 0.0 occurrences517–516 Mya — about 0.0 occurrences516–516 Mya — about 0.0 occurrences516–516 Mya — about 0.0 occurrences516–515 Mya — about 0.0 occurrences515–515 Mya — about 0.0 occurrences515–515 Mya — about 0.0 occurrences515–514 Mya — about 0.0 occurrences514–514 Mya — about 0.0 occurrences514–514 Mya — about 0.0 occurrences514–513 Mya — about 0.0 occurrences513–513 Mya — about 0.0 occurrences513–513 Mya — about 0.0 occurrences513–512 Mya — about 0.0 occurrences512–512 Mya — about 0.0 occurrences521.5 Mya511.6 Mya

1 occurrence of Dicerodiscus 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

1 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

1 formation

Wulongqing — 26.83°N, 106.83°E

Loading coastlines…

The named rock units Dicerodiscus has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Dicerodiscus and its relatives

Cambrian

Where Dicerodiscus and its relatives were recorded in the Cambrian.

Found in the same rock

No other named taxon is catalogued from that site.

The Paleobiology Database records 1 site for Dicerodiscus, and this reads all of them.

Entered from

1 reference

Each of the 1 occurrence 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content1

Picture of Dicerodiscus

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

No 3D scan of Dicerodiscus 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.

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 itHebediscidae through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Chang 1974