Cornuta

Cornuta is an extinct order of echinoderms. Along with the mitrates, they form the Stylophora.

Cornuta

Haplochromis · 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
StylophoraPBDB
Diet
suspension feederPBDB
Life habit
epifaunalPBDB
Motility
facultatively mobilePBDB
Vision
blindPBDB, for Stylophora
Environment
marinePBDB, for Echinodermata

Time the record covers

At least 186 million years on record.

The record covers at least 505.3 Mya to 318.7 Mya. No occurrence read is dated outside 509.7 Mya to 316.9 Mya.

Cambrian — about 42 of 68 occurrencesCambrianOrdovician — about 24 of 68 occurrencesOrdovicianSilurian — about 0 of 68 occurrencesDevonian — about 0 of 68 occurrencesCarboniferous — about 2 of 68 occurrencesCarboniferous514–507 Mya — about 2 occurrences507–500 Mya — about 20 occurrences500–494 Mya — about 11 occurrences494–487 Mya — about 9 occurrences487–480 Mya — about 1 occurrence480–473 Mya — about 10 occurrences473–467 Mya — about 7 occurrences467–460 Mya — about 1 occurrence460–453 Mya — about 1 occurrence453–447 Mya — about 2 occurrences447–440 Mya — about 0.8 occurrences320–313 Mya — about 2 occurrences505.3 Mya318.7 Mya514 Mya313 Mya

68 occurrences of Cornuta 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

68 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

30 formations

Jince — 49.78°N, 13.97°ESaint-Chinian — 43.44°N, 2.89°EPontyfenni — 52.00°N, 5.00°WWhipple Cave — 39.23°N, 114.88°WWhipple Cave — 38.90°N, 114.95°WUpper Fezouata — 30.42°N, 5.85°WUpper Fezouata — 30.50°N, 5.75°WUpper Fezouata — 27.82°N, 11.40°WUpper Fezouata — 30.48°N, 5.67°WMurero — 41.66°N, 1.77°WTongjom — 37.07°N, 129.14°EShineton Shales — 52.63°N, 2.66°WShineton Shales — 52.63°N, 2.65°WSarka — 50.00°N, 14.00°ESnowy Range — 45.02°N, 109.93°WSnowy Range — 43.42°N, 108.18°WLangston — 41.60°N, 112.04°WWheeler Shale — 39.31°N, 113.29°WFerrals — 43.40°N, 2.63°EBuchava — 49.96°N, 13.74°EBuchava — 49.93°N, 14.05°EOville — 42.85°N, 5.87°WLincoln Peak — 40.03°N, 114.77°WSkryje Shale — 49.97°N, 13.77°ESouth Threave — 55.29°N, 4.76°WGalgenberg — 50.20°N, 11.56°ELower Fezouata — 30.51°N, 6.07°WMenevia — 51.87°N, 5.22°WUpper Ktaoua — 30.77°N, 5.66°WSandu — 23.35°N, 106.12°EPizarras Cantera — 38.52°N, 3.57°W

Loading coastlines…

The named rock units Cornuta has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 further formations hold fewer occurrences each and are not listed. 1 occurrence has no formation on record, which is common for older literature.

Cornuta and its relatives

Cambrian

Where Cornuta and its relatives were recorded in the Cambrian.

Found in the same rock

781 taxa

The Paleobiology Database records 55 sites for Cornuta, 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

41 references

Each of the 68 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. 29 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 content3

Picture of Cornuta

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

CT scan

Licence
In Copyright
Commercial use
cannot be read from the licence given — check the record
Specimen
Anoplogaster cornuta · SIO:Marine Vertebrates:52-404

3D model

Source
Sketchfab
Licence
CC0 Public Domain
Commercial use
the licence allows it

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 itStylophora through timeFormations of the CambrianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Jaekel 1901