Gerdalia

Gerdalia

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
OstracodaPBDB
Life habit
epifaunalPBDB, for Ostracoda
Motility
actively mobilePBDB, for Ostracoda
Vision
limitedPBDB, for Ostracoda
Environment
marinePBDB, for Ostracoda

Time the record covers

At least 29 million years on record.

The record covers at least 256.8 Mya to 227.3 Mya. No occurrence read is dated outside 264.28 Mya to 201.4 Mya.

Permian — about 5 of 14 occurrencesPermianEarly Triassic — about 5 of 14 occurrencesMiddle Triassic — about 0 of 14 occurrencesLate Triassic — about 4 of 14 occurrencesLate TriassicEarly Jurassic — about 0 of 14 occurrences266–263 Mya — about 0.1 occurrences263–261 Mya — about 0.3 occurrences261–259 Mya — about 1 occurrence259–257 Mya — about 3 occurrences257–255 Mya — about 0.0 occurrences252–250 Mya — about 5 occurrences237–235 Mya — about 0.1 occurrences235–233 Mya — about 0.1 occurrences233–231 Mya — about 0.1 occurrences231–228 Mya — about 0.1 occurrences228–226 Mya — about 0.2 occurrences226–224 Mya — about 0.4 occurrences224–222 Mya — about 0.4 occurrences222–220 Mya — about 0.4 occurrences220–218 Mya — about 0.4 occurrences218–215 Mya — about 0.4 occurrences215–213 Mya — about 0.4 occurrences213–211 Mya — about 0.4 occurrences211–209 Mya — about 0.4 occurrences209–207 Mya — about 0.4 occurrences207–205 Mya — about 0.2 occurrences205–202 Mya — about 0.1 occurrences202–200 Mya — about 0.0 occurrences256.8 Mya227.3 Mya266 Mya200 Mya

14 occurrences of Gerdalia 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

14 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

5 formations

Vokhminskaya — 57.88°N, 45.91°ETecovas — 33.43°N, 101.16°WSan Pedro Arroyo — 34.58°N, 106.78°WSloan Canyon — 36.94°N, 103.15°WBull Canyon — 35.37°N, 103.38°W

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The named rock units Gerdalia has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.

Gerdalia and its relatives

Permian

Where Gerdalia and its relatives were recorded in the Permian.

Found in the same rock

121 taxa

The Paleobiology Database records 7 sites for Gerdalia, 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

6 references

Each of the 14 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 Gerdalia

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

No 3D scan of Gerdalia 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 itOstracoda through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Belousova 1961