Damesellidae

Damesellidae is a family of odontopleurid trilobites found in late Middle to Late Cambrian marine strata, primarily of China. Damesellids are closely related to the odontopleurids of Odontopleuridae, but are not nearly as spinose, nor possess spines as exaggerated as Odontopleuridae. Like Odontopleuridae odontopleurids, damesellids have broad, bar-shaped cranidia with ledge-like borders. Damesellidae may represent transitional forms between more primitive, possibly ancestral ptychopariids and more advanced odontopleurids.

Damesellidae

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
DameselloideaPBDB
Diet
carnivorePBDB, for Lichida
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
well-developedPBDB
Environment
marinePBDB, for Trilobita

Time the record covers

At least 7.5 million years on record.

The record covers at least 504.5 Mya to 497 Mya. No occurrence read is dated outside 506.5 Mya to 486.85 Mya.

Cambrian — about 437 of 437 occurrencesCambrianOrdovician — about 0 of 437 occurrences507–506 Mya — about 0.3 occurrences506–506 Mya — about 1 occurrence506–505 Mya — about 1 occurrence505–504 Mya — about 1 occurrence504–504 Mya — about 2 occurrences504–503 Mya — about 2 occurrences503–502 Mya — about 2 occurrences502–501 Mya — about 2 occurrences501–501 Mya — about 2 occurrences501–500 Mya — about 41 occurrences500–499 Mya — about 73 occurrences499–499 Mya — about 83 occurrences499–498 Mya — about 86 occurrences498–497 Mya — about 86 occurrences497–497 Mya — about 46 occurrences497–496 Mya — about 1 occurrence496–495 Mya — about 1 occurrence495–495 Mya — about 1 occurrence495–494 Mya — about 0.9 occurrences494–493 Mya — about 0.5 occurrences493–493 Mya — about 0.5 occurrences493–492 Mya — about 0.5 occurrences492–491 Mya — about 0.5 occurrences491–490 Mya — about 0.5 occurrences490–490 Mya — about 0.5 occurrences490–489 Mya — about 0.5 occurrences489–488 Mya — about 0.5 occurrences488–488 Mya — about 0.5 occurrences488–487 Mya — about 0.5 occurrences487–486 Mya — about 0.1 occurrences504.5 Mya497 Mya507 Mya486.4 Mya

437 occurrences of Damesellidae 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

437 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

28 formations

Huaqiao — 28.39°N, 109.53°EHuaqiao — 28.72°N, 109.97°EHuaqiao — 28.05°N, 109.42°EHuaqiao — 29.10°N, 110.92°EKushan — 41.35°N, 123.73°EKushan — 35.73°N, 117.77°EKushan — 34.63°N, 112.97°EKushan — 35.42°N, 114.05°EKushan — 39.75°N, 118.32°EKushan — 39.67°N, 111.92°EKushan — 39.48°N, 112.18°EKushan — 41.25°N, 124.35°EKushan — 41.35°N, 123.75°EKushan — 41.23°N, 123.32°EKushan — 36.50°N, 116.85°EKushan — 34.42°N, 117.43°EKushan — 36.90°N, 111.13°EKushan — 34.17°N, 112.80°EKushan — 39.92°N, 111.68°EKushan — 39.63°N, 107.00°EKushan — 36.30°N, 118.41°ESesong — 37.17°N, 128.78°ESesong — 37.07°N, 129.15°EZhumabai — 43.53°N, 69.95°ELongha — 23.26°N, 105.54°EMungerebar — 22.92°S, 138.80°EMungerebar — 19.59°S, 140.30°EKarsha — 33.15°N, 77.18°EGushan — 35.57°N, 110.47°EGushan — 36.51°N, 116.86°ESpurs — 71.34°S, 163.21°EChefu — 27.48°N, 109.20°EChanghia — 36.10°N, 117.77°EChanghia — 36.30°N, 118.41°EHuayansi — 28.82°N, 118.60°EXugou — 32.80°N, 111.45°EXugou — 32.73°N, 111.17°EFengmuping — 27.98°N, 109.55°EZhangxia — 35.57°N, 110.47°EZhangxia — 39.75°N, 118.32°ELongpan — 32.27°N, 118.25°EKul'bich — 51.97°N, 85.97°EMila — 35.81°N, 53.28°EKunzam La — 33.07°N, 77.23°EVal d'Homs — 43.00°N, 2.00°EKurgiakh — 33.07°N, 77.25°EParahio — 33.25°N, 77.17°ESarykumy — 46.98°N, 74.13°EYangliugang — 28.82°N, 118.60°E

Loading coastlines…

The named rock units Damesellidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 further formations hold fewer occurrences each and are not listed. 10 occurrences have no formation on record, which is common for older literature.

Damesellidae and its relatives

Cambrian

Where Damesellidae and its relatives were recorded in the Cambrian.

Found in the same rock

209 taxa

The Paleobiology Database records 44 sites for Damesellidae, 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 437 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 Damesellidae

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 was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

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 itDameselloidea through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Kobayashi 1935