Juliformia

Juliformia is a taxonomic superorder of millipedes containing three living orders: Julida, Spirobolida, and Spirostreptida, and the extinct group Xyloiuloidea known only from fossils.

Juliformia

N. Ioannou · CC BY 4.0 · 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
EugnathaPBDB
Motility
actively mobilePBDB, for Arthropoda

Time the record covers

At least 412 million years on record.

The record covers at least 413.02 Mya to 129 ka. No occurrence read is dated outside 419.62 Mya to 11.7 ka.

Silurian — about 0 of 71 occurrencesDevonian — about 3 of 71 occurrencesDevonianCarboniferous — about 28 of 71 occurrencesCarboniferousPermian — about 4 of 71 occurrencesPermianEarly Triassic — about 0 of 71 occurrencesMiddle Triassic — about 0 of 71 occurrencesLate Triassic — about 0 of 71 occurrencesEarly Jurassic — about 0 of 71 occurrencesMiddle Jurassic — about 0 of 71 occurrencesLate Jurassic — about 0 of 71 occurrencesEarly Cretaceous — about 0 of 71 occurrencesLate Cretaceous — about 7 of 71 occurrencesPaleocene — about 0 of 71 occurrencesEocene — about 9 of 71 occurrencesOligocene — about 8 of 71 occurrencesMiocene — about 6 of 71 occurrencesPliocene — about 1 of 71 occurrencesPleistocene — about 5 of 71 occurrences428–414 Mya — about 0.9 occurrences414–399 Mya — about 0.1 occurrences399–385 Mya — about 2 occurrences371–357 Mya — about 0.2 occurrences357–342 Mya — about 0.8 occurrences328–314 Mya — about 9 occurrences314–300 Mya — about 18 occurrences300–285 Mya — about 2 occurrences285–271 Mya — about 2 occurrences114–100 Mya — about 0.4 occurrences100–86 Mya — about 4 occurrences86–71 Mya — about 3 occurrences57–43 Mya — about 1 occurrence43–29 Mya — about 11 occurrences29–14 Mya — about 9 occurrences14–0 Mya — about 8 occurrences413.02 Mya129 ka428 Mya0 Mya

71 occurrences of Juliformia on record, most of them in the Carboniferous. The Paleobiology Database records this as a living group. 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

71 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

19 formations

Kladno — 49.71°N, 13.21°ECarbondale — 41.33°N, 88.37°WBaruungoyot — 43.49°N, 101.13°EBaruungoyot — 43.32°N, 99.83°EJoggins — 45.70°N, 64.45°WThermalsinterkalk — 48.41°N, 9.55°ELueders — 33.75°N, 99.13°WGreen River — 41.56°N, 109.55°WOnyx Marble — 35.10°N, 112.59°WSystem B — 19.01°S, 138.67°ESlaný — 50.21°N, 13.68°ESlany — 50.23°N, 14.07°EFlorissant — 38.92°N, 105.28°WBattery Point — 48.83°N, 64.34°WCampbellton — 48.04°N, 66.50°WDundee Flagstone — 56.57°N, 2.73°WBursum — 34.84°N, 106.91°WClear Fork — 33.82°N, 99.21°WBallagan — 55.79°N, 2.21°WPennine Lower Coal Measures — 53.53°N, 2.51°W

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The named rock units Juliformia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 36 occurrences have no formation on record, which is common for older literature.

Juliformia and its relatives

Carboniferous

Where Juliformia and its relatives were recorded in the Carboniferous.

Found in the same rock

1,937 taxa

The Paleobiology Database records 53 sites for Juliformia, 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

39 references

Each of the 71 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. 27 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 Juliformia

Credit
N. Ioannou
Licence
CC BY 4.0
Commercial use
the licence allows it

No 3D scan of Juliformia 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.

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 itEugnatha through timeFormations of the CarboniferousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Attems 1926