Blackwelderia

Blackwelderia

via iDigBio · 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
DamesellidaePBDB
Diet
carnivorePBDB, for Lichida
Life habit
low-level epifaunalPBDB, for Trilobita
Motility
fast-movingPBDB, for Trilobita
Vision
well-developedPBDB, for Damesellidae
Environment
marinePBDB, for Trilobita

Time the record covers

At least 500 thousand years on record.

The record covers at least 499.5 Mya to 499 Mya. No occurrence read is dated outside 504.5 Mya to 494.2 Mya.

Cambrian — about 88 of 88 occurrencesCambrian505–504 Mya — about 0.1 occurrences504–504 Mya — about 0.1 occurrences504–503 Mya — about 0.1 occurrences503–503 Mya — about 0.1 occurrences503–503 Mya — about 0.1 occurrences503–502 Mya — about 0.1 occurrences502–502 Mya — about 0.1 occurrences502–502 Mya — about 0.1 occurrences502–501 Mya — about 0.1 occurrences501–501 Mya — about 0.1 occurrences501–500 Mya — about 0.5 occurrences500–500 Mya — about 7 occurrences500–500 Mya — about 7 occurrences500–499 Mya — about 8 occurrences499–499 Mya — about 10 occurrences499–499 Mya — about 10 occurrences499–498 Mya — about 10 occurrences498–498 Mya — about 10 occurrences498–497 Mya — about 10 occurrences497–497 Mya — about 10 occurrences497–497 Mya — about 2 occurrences497–496 Mya — about 0.1 occurrences496–496 Mya — about 0.1 occurrences496–496 Mya — about 0.1 occurrences496–495 Mya — about 0.1 occurrences495–495 Mya — about 0.1 occurrences495–494 Mya — about 0.1 occurrences494–494 Mya — about 0.0 occurrences499.5 Mya – 499 Mya505 Mya493.7 Mya

88 occurrences of Blackwelderia 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

88 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

9 formations

Kushan — 41.35°N, 123.73°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 — 39.63°N, 107.00°EKushan — 36.30°N, 118.41°EZhumabai — 43.53°N, 69.95°ESesong — 37.07°N, 129.15°ESesong — 37.17°N, 128.78°EHuaqiao — 28.72°N, 109.97°EHuaqiao — 28.39°N, 109.53°EMungerebar — 22.92°S, 138.80°EMungerebar — 19.59°S, 140.30°ESarykumy — 46.98°N, 74.13°EGushan — 35.57°N, 110.47°EXugou — 32.73°N, 111.17°ELongha — 23.26°N, 105.54°E

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

Blackwelderia and its relatives

Cambrian

Where Blackwelderia and its relatives were recorded in the Cambrian.

Found in the same rock

56 taxa

The Paleobiology Database records 11 sites for Blackwelderia, 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

16 references

Each of the 88 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. 4 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 Blackwelderia

Source
iDigBio
Credit
via iDigBio
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.

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

Keep going

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

Occurrence data from the Paleobiology Database, CC BY 4.0. Walcott 1906