Hexastylus

Hexastylus

Picturepest · CC BY 2.0 · 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
HexastylidaePBDB
Diet
omnivorePBDB, for Radiolaria
Life habit
planktonicPBDB, for Radiolaria
Motility
passively mobilePBDB, for Radiolaria
Environment
marinePBDB, for Radiolaria

Time the record covers

At least 96 million years on record.

The record covers at least 233.6 Mya to 137.05 Mya. No occurrence read is dated outside 237 Mya to 132.6 Mya.

Middle Triassic — about 0 of 30 occurrencesLate Triassic — about 1 of 30 occurrencesLate TriassicEarly Jurassic — about 0 of 30 occurrencesMiddle Jurassic — about 3 of 30 occurrencesMiddle JurassicLate Jurassic — about 18 of 30 occurrencesLate JurassicEarly Cretaceous — about 8 of 30 occurrencesEarly Cretaceous239–235 Mya — about 0.5 occurrences235–232 Mya — about 0.6 occurrences178–174 Mya — about 0.1 occurrences174–170 Mya — about 0.8 occurrences170–167 Mya — about 1 occurrence167–163 Mya — about 0.6 occurrences163–159 Mya — about 0.4 occurrences159–156 Mya — about 0.5 occurrences156–152 Mya — about 0.5 occurrences152–149 Mya — about 2 occurrences149–145 Mya — about 10 occurrences145–141 Mya — about 9 occurrences141–138 Mya — about 3 occurrences138–134 Mya — about 1 occurrence134–131 Mya — about 0.3 occurrences233.6 Mya137.05 Mya239 Mya131 Mya

30 occurrences of Hexastylus on record, most of them in the Late Jurassic. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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

30 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

8 formations

Ameghino — 64.47°S, 58.97°WOberalmer Schichten — 47.70°N, 13.07°EOberalmer Schichten — 47.73°N, 13.03°EOberalmer Schichten — 47.62°N, 13.25°EAnchorage — 62.60°S, 61.17°WWahrah — 22.97°N, 57.06°ENadan — 23.02°N, 57.11°EAptychus Beds — 47.67°N, 12.90°EMonte Alpe Cherts — 44.37°N, 9.43°EGoestling — 47.80°N, 14.93°E

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The named rock units Hexastylus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.

Hexastylus and its relatives

Late Jurassic

Where Hexastylus and its relatives were recorded in the Late Jurassic.

Found in the same rock

639 taxa

The Paleobiology Database records 23 sites for Hexastylus, 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

10 references

Each of the 30 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 content1

Picture of Hexastylus

Credit
Picturepest
Licence
CC BY 2.0
Commercial use
the licence allows it

No 3D scan of Hexastylus was found in MorphoSource and Sketchfab.

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 itHexastylidae through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Haeckel 1881