Petrocrania

Petrocrania

Dwergenpaartje · CC BY-SA 3.0 · 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
CraniidaePBDB
Diet
suspension feederPBDB
Life habit
epifaunalPBDB
Motility
stationary, attached, epibiontPBDB
Vision
blindPBDB, for Craniata
Environment
marinePBDB, for Craniata

Time the record covers

At least 212 million years on record.

The record covers at least 477.1 Mya to 264.28 Mya. No occurrence read is dated outside 486.85 Mya to 259.857 Mya.

Cambrian — about 0 of 305 occurrencesOrdovician — about 169 of 305 occurrencesOrdovicianSilurian — about 4 of 305 occurrencesSilurianDevonian — about 59 of 305 occurrencesDevonianCarboniferous — about 35 of 305 occurrencesCarboniferousPermian — about 38 of 305 occurrencesPermian491–484 Mya — about 0.4 occurrences484–476 Mya — about 1 occurrence476–468 Mya — about 3 occurrences468–460 Mya — about 6 occurrences460–452 Mya — about 40 occurrences452–444 Mya — about 116 occurrences444–436 Mya — about 6 occurrences436–428 Mya — about 1 occurrence421–413 Mya — about 0.3 occurrences413–405 Mya — about 0.6 occurrences405–397 Mya — about 2 occurrences397–389 Mya — about 6 occurrences389–381 Mya — about 35 occurrences381–373 Mya — about 7 occurrences373–365 Mya — about 3 occurrences365–358 Mya — about 5 occurrences358–350 Mya — about 2 occurrences350–342 Mya — about 2 occurrences342–334 Mya — about 2 occurrences334–326 Mya — about 3 occurrences326–318 Mya — about 2 occurrences318–310 Mya — about 2 occurrences310–303 Mya — about 11 occurrences303–295 Mya — about 18 occurrences295–287 Mya — about 2 occurrences287–279 Mya — about 4 occurrences279–271 Mya — about 8 occurrences271–263 Mya — about 15 occurrences263–255 Mya — about 2 occurrences477.1 Mya264.28 Mya491 Mya255 Mya

305 occurrences of Petrocrania on record, most of them in the Ordovician. 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

305 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

125 formations

Waynesville — 39.45°N, 83.83°WWaynesville — 39.00°N, 84.00°WWaynesville — 39.44°N, 84.98°WWaynesville — 39.34°N, 84.95°WWaynesville — 39.48°N, 84.06°WWaynesville — 39.36°N, 84.36°WKope — 39.00°N, 84.00°WKope — 39.01°N, 84.45°WKope — 38.68°N, 83.79°WLudlowville — 42.76°N, 78.65°WLudlowville — 42.96°N, 78.13°WLudlowville — 42.83°N, 77.84°WLudlowville — 42.87°N, 75.71°WLudlowville — 42.76°N, 76.47°WLudlowville — 42.74°N, 75.53°WBell Canyon — 31.92°N, 104.76°WBell Canyon — 31.82°N, 104.77°WBeattie — 39.24°N, 96.60°WBeattie — 39.10°N, 96.64°WBeattie — 39.44°N, 96.13°WBeattie — 39.38°N, 96.39°WBeattie — 39.42°N, 95.97°WBeattie — 37.53°N, 96.49°WBeattie — 37.37°N, 96.54°WForaker Limestome — 39.39°N, 96.41°WForaker Limestome — 39.25°N, 96.57°WForaker Limestome — 39.07°N, 96.18°WForaker Limestome — 39.49°N, 96.27°WBellevue — 38.87°N, 84.46°WBellevue — 39.00°N, 84.00°WBellevue — 39.17°N, 84.12°WBellevue — 38.68°N, 83.79°WFairview — 39.00°N, 84.00°WFairview — 39.01°N, 84.45°WFairview — 39.03°N, 84.51°WFairview — 38.68°N, 83.79°WMount Auburn — 39.00°N, 84.00°WMount Auburn — 38.87°N, 83.91°WMount Auburn — 39.33°N, 84.07°WMount Auburn — 38.50°N, 83.76°WMount Auburn — 39.41°N, 84.50°WLiberty — 39.00°N, 84.00°WLiberty — 39.34°N, 84.95°WLiberty — 39.48°N, 84.06°WLiberty — 39.48°N, 84.05°WLiberty — 38.78°N, 85.37°WMoscow — 42.81°N, 77.90°WMoscow — 42.75°N, 77.01°WMoscow — 42.67°N, 76.73°WMoscow — 42.57°N, 74.75°WMoscow — 42.77°N, 77.83°WSilica — 41.72°N, 83.72°WGraham — 33.11°N, 98.59°WGraham — 31.44°N, 99.34°WOregonia — 39.34°N, 84.95°WOregonia — 38.58°N, 83.70°WOregonia — 39.03°N, 83.85°WBull Fork — 38.40°N, 83.72°WBull Fork — 38.60°N, 83.72°WCorryville — 39.00°N, 84.00°WCorryville — 39.17°N, 84.12°WCorryville — 39.33°N, 84.07°WHeath — 46.92°N, 109.09°WHeath — 46.79°N, 108.87°WHeath — 46.67°N, 109.13°WCathedral Mountain — 30.41°N, 103.11°WCathedral Mountain — 30.25°N, 103.37°WCathedral Mountain — 30.31°N, 103.29°WWord — 30.39°N, 103.18°WCabaniss — 37.49°N, 94.57°WCabaniss — 37.59°N, 89.70°WCabaniss — 38.28°N, 93.98°WWaynesville — 45.75°N, 81.60°WWaynesville — 45.91°N, 81.89°WWaynesville — 45.97°N, 81.93°WWaynesville — 45.36°N, 75.35°WLime Creek — 43.05°N, 92.96°WLime Creek — 43.00°N, 93.00°WLouisiana Limestone — 39.45°N, 91.05°WForaker Limestone — 39.14°N, 96.31°WForaker Limestone — 38.81°N, 96.08°W

Loading coastlines…

The named rock units Petrocrania has been recovered from, largest first. Drawn where the rock is now, not where it formed. 101 further formations hold fewer occurrences each and are not listed. 7 occurrences have no formation on record, which is common for older literature.

Petrocrania and its relatives

Ordovician

Where Petrocrania and its relatives were recorded in the Ordovician.

Found in the same rock

2,584 taxa

The Paleobiology Database records 287 sites for Petrocrania, and this reads 240 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

89 references

Each of the 305 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. 77 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 Petrocrania

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

No 3D scan of Petrocrania 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 itCraniidae through timeFormations of the OrdovicianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Raymond 1910