Holmesella quadrata

No picture of Holmesella quadrata was found. Wikidata and iDigBio were searched and had none. Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Holmesella quadrata, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
HolmesellaPBDB
Diet
carnivorePBDB, for Chondrichthyes
Life habit
nektonicPBDB, for Chondrichthyes
Motility
actively mobilePBDB, for Chondrichthyes

Time the record covers

At least 8.1 million years on record.

The record covers at least 307 Mya to 298.9 Mya. No occurrence read is dated outside 315.2 Mya to 293.52 Mya.

Carboniferous — about 1 of 2 occurrencesCarboniferousPermian — about 1 of 2 occurrencesPermian316–315 Mya — about 0.0 occurrences315–314 Mya — about 0.1 occurrences314–313 Mya — about 0.1 occurrences313–313 Mya — about 0.1 occurrences313–312 Mya — about 0.1 occurrences312–311 Mya — about 0.1 occurrences311–310 Mya — about 0.1 occurrences310–310 Mya — about 0.1 occurrences310–309 Mya — about 0.1 occurrences309–308 Mya — about 0.1 occurrences308–307 Mya — about 0.1 occurrences307–307 Mya — about 0.0 occurrences299–298 Mya — about 0.1 occurrences298–298 Mya — about 0.1 occurrences298–297 Mya — about 0.1 occurrences297–296 Mya — about 0.1 occurrences296–295 Mya — about 0.1 occurrences295–295 Mya — about 0.1 occurrences295–294 Mya — about 0.1 occurrences294–293 Mya — about 0.0 occurrences307 Mya298.9 Mya315.7 Mya293 Mya

2 occurrences of Holmesella quadrata on record, most of them in the Carboniferous. 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

2 formations

Minnelusa — 44.22°N, 103.41°WGrenola — 38.95°N, 96.40°W

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

Holmesella quadrata and its relatives

Carboniferous

Where Holmesella quadrata and its relatives were recorded in the Carboniferous.

Found in the same rock

17 taxa

The Paleobiology Database records 2 sites for Holmesella quadrata, 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. Each entry links to the Paleobiology Database's own record for the work.

Media and terms

Media content0

No picture of Holmesella quadrata was found. Wikidata and iDigBio were searched and had none.

Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Holmesella quadrata, or no answer at all. This entry cannot say which.

No 3D scan of Holmesella quadrata was found in Sketchfab.

Smithsonian Open Access and MorphoSource were 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 itHolmesella through timeFormations of the CarboniferousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Gunnel 1931