Brooksella alternata

Brooksella alternata

Uncredited · via Wikidata/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
BrooksellaPBDB
Diet
suspension feederPBDB, for Reticulosa
Life habit
epifaunalPBDB, for Reticulosa
Motility
stationary, attachedPBDB, for Reticulosa
Vision
blindPBDB, for Hexactinellida
Environment
marinePBDB, for Hexactinellida

Time the record covers

At most 20 million years on record.

Every occurrence read is dated to somewhere between 506.5 Mya and 486.85 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Cambrian — about 2 of 2 occurrencesCambrianOrdovician — about 0 of 2 occurrences507–506 Mya — about 0.0 occurrences506–506 Mya — about 0.1 occurrences506–505 Mya — about 0.1 occurrences505–504 Mya — about 0.1 occurrences504–504 Mya — about 0.1 occurrences504–503 Mya — about 0.1 occurrences503–502 Mya — about 0.1 occurrences502–501 Mya — about 0.1 occurrences501–501 Mya — about 0.1 occurrences501–500 Mya — about 0.1 occurrences500–499 Mya — about 0.1 occurrences499–499 Mya — about 0.1 occurrences499–498 Mya — about 0.1 occurrences498–497 Mya — about 0.1 occurrences497–497 Mya — about 0.1 occurrences497–496 Mya — about 0.0 occurrences496–495 Mya — about 0.0 occurrences495–495 Mya — about 0.0 occurrences495–494 Mya — about 0.0 occurrences494–493 Mya — about 0.0 occurrences493–493 Mya — about 0.0 occurrences493–492 Mya — about 0.0 occurrences492–491 Mya — about 0.0 occurrences491–490 Mya — about 0.0 occurrences490–490 Mya — about 0.0 occurrences490–489 Mya — about 0.0 occurrences489–488 Mya — about 0.0 occurrences488–488 Mya — about 0.0 occurrences488–487 Mya — about 0.0 occurrences487–486 Mya — about 0.0 occurrences507 Mya486.4 Mya

2 occurrences of Brooksella alternata 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

2 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

Conasauga — 34.16°N, 85.39°W

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The named rock units Brooksella alternata 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.

Brooksella alternata and its relatives

Cambrian

Where Brooksella alternata and its relatives were recorded in the Cambrian.

Found in the same rock

11 taxa

The Paleobiology Database records 2 sites for Brooksella alternata, and this reads all of them. The number is how many of those sites it was catalogued from too.

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

2 references

Each of the 2 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. 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 Brooksella alternata

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

CT scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Brooksella alternata · GMNH:GEO:UGA.WL.95

Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.

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

Keep going

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

Occurrence data from the Paleobiology Database, CC BY 4.0. Walcott 1896