Healdia

Healdia

via iDigBio · CC BY-NC-SA · via iDigBio. 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
HealdiidaePBDB
Diet
detritivore, grazerPBDB, for Podocopida
Life habit
epifaunalPBDB, for Podocopida
Motility
actively mobilePBDB, for Ostracoda
Vision
limitedPBDB, for Ostracoda
Environment
marinePBDB, for Ostracoda

Time the record covers

At least 235 million years on record.

The record covers at least 419.62 Mya to 184.2 Mya. No occurrence read is dated outside 443.1 Mya to 182.9 Mya.

Ordovician — about 0 of 423 occurrencesSilurian — about 1 of 423 occurrencesSilurianDevonian — about 31 of 423 occurrencesDevonianCarboniferous — about 122 of 423 occurrencesCarboniferousPermian — about 245 of 423 occurrencesPermianEarly Triassic — about 1 of 423 occurrencesMiddle Triassic — about 17 of 423 occurrencesLate Triassic — about 5 of 423 occurrencesLate TriassicEarly Jurassic — about 1 of 423 occurrencesEarly Jurassic448–439 Mya — about 0.2 occurrences439–430 Mya — about 0.4 occurrences430–421 Mya — about 0.4 occurrences421–412 Mya — about 4 occurrences412–403 Mya — about 3 occurrences403–394 Mya — about 1 occurrence394–385 Mya — about 12 occurrences385–376 Mya — about 11 occurrences367–358 Mya — about 0.1 occurrences358–349 Mya — about 0.7 occurrences349–340 Mya — about 8 occurrences340–331 Mya — about 11 occurrences331–322 Mya — about 10 occurrences322–313 Mya — about 31 occurrences313–304 Mya — about 35 occurrences304–295 Mya — about 28 occurrences295–286 Mya — about 193 occurrences286–277 Mya — about 10 occurrences277–268 Mya — about 8 occurrences268–259 Mya — about 4 occurrences259–250 Mya — about 29 occurrences250–241 Mya — about 15 occurrences241–232 Mya — about 4 occurrences232–223 Mya — about 0.9 occurrences214–205 Mya — about 0.4 occurrences205–196 Mya — about 2 occurrences187–178 Mya — about 1 occurrence419.62 Mya184.2 Mya448 Mya178 Mya

423 occurrences of Healdia on record, most of them in the Permian. 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

423 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

69 formations

Holmwood — 28.94°S, 115.54°EJohns Valley — 34.50°N, 95.61°WJohns Valley — 34.38°N, 96.12°WJohns Valley — 34.42°N, 96.00°WJohns Valley — 34.59°N, 95.89°WJohns Valley — 34.67°N, 95.89°WJohns Valley — 34.34°N, 95.86°WJohns Valley — 34.70°N, 95.59°WJohns Valley — 34.77°N, 95.23°WJohns Valley — 34.82°N, 95.14°WJohns Valley — 34.79°N, 95.02°WJohns Valley — 34.88°N, 94.99°WJohns Valley — 34.75°N, 94.63°WSilica — 41.68°N, 83.73°WSilica — 42.13°N, 83.60°WSilica — 42.33°N, 83.03°WWewoka — 35.04°N, 96.36°WNaujoji Akmené — 54.55°N, 22.80°ENaujoji Akmené — 55.67°N, 21.75°ENaujoji Akmené — 55.75°N, 22.50°ENaujoji Akmené — 54.67°N, 24.17°ENaujoji Akmené — 54.48°N, 24.62°ENaujoji Akmené — 54.25°N, 25.62°ENaujoji Akmené — 55.72°N, 23.07°ENaujoji Akmené — 56.00°N, 23.67°ENaujoji Akmené — 55.93°N, 23.28°ENaujoji Akmené — 54.42°N, 22.78°ENaujoji Akmené — 55.78°N, 21.83°EChangxing — 26.15°N, 105.29°EChangxing — 26.33°N, 105.93°EChangxing — 25.73°N, 117.74°EChangxing — 31.08°N, 119.71°EMarelb — 45.07°N, 28.78°ESecond Abden Shale — 56.07°N, 3.17°WElmdale — 38.37°N, 96.62°WGraham — 32.40°N, 98.89°WMuldraugh — 40.04°N, 86.87°WBaitugan — 55.74°N, 52.03°EBaitugan — 54.51°N, 52.18°EHenrietta — 38.59°N, 90.25°WHenrietta — 38.65°N, 90.37°WLercara — 37.63°N, 13.28°EGlenn — 34.12°N, 97.14°WSalairka Horizon — 54.28°N, 85.93°EShublik — 69.53°N, 145.21°WFayetteville — 36.08°N, 94.13°WFayetteville — 36.19°N, 94.13°WMoscow — 42.72°N, 78.97°WMoscow — 42.88°N, 78.03°WMoscow — 42.77°N, 77.88°WDalong — 22.27°N, 107.69°EMcCoy — 39.54°N, 106.39°WNaujoji Akmené — 54.62°N, 21.20°ENaujoji Akmené — 54.67°N, 22.00°EUzum Bair — 45.07°N, 28.78°EWreford — 39.08°N, 96.78°WWreford — 38.37°N, 96.59°W

Loading coastlines…

The named rock units Healdia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 45 further formations hold fewer occurrences each and are not listed. 14 occurrences have no formation on record, which is common for older literature.

Healdia and its relatives

Permian

Where Healdia and its relatives were recorded in the Permian.

Found in the same rock

1,927 taxa

The Paleobiology Database records 237 sites for Healdia, 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

56 references

Each of the 423 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. 44 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 Healdia

Source
iDigBio
Credit
via iDigBio
Licence
CC BY-NC-SA
Commercial use
the licence does not allow it

No 3D scan of Healdia 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 itHealdiidae through timeFormations of the PermianThe world it lived on

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