Polyacrodus

No picture of Polyacrodus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Polyacrodus, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
PolyacrodontidaePBDB
Diet
carnivorePBDB, for Chondrichthyes
Life habit
nektonicPBDB, for Chondrichthyes
Motility
actively mobilePBDB, for Chondrichthyes

Time the record covers

At least 199 million years on record.

The record covers at least 283.3 Mya to 83.6 Mya. No occurrence read is dated outside 298.9 Mya to 72.2 Mya.

Carboniferous — about 0 of 149 occurrencesPermian — about 23 of 149 occurrencesPermianEarly Triassic — about 10 of 149 occurrencesMiddle Triassic — about 14 of 149 occurrencesLate Triassic — about 41 of 149 occurrencesLate TriassicEarly Jurassic — about 6 of 149 occurrencesEarly JurassicMiddle Jurassic — about 10 of 149 occurrencesLate Jurassic — about 2 of 149 occurrencesEarly Cretaceous — about 18 of 149 occurrencesEarly CretaceousLate Cretaceous — about 25 of 149 occurrencesLate Cretaceous303–296 Mya — about 0.1 occurrences296–288 Mya — about 2 occurrences288–280 Mya — about 6 occurrences280–272 Mya — about 4 occurrences272–264 Mya — about 6 occurrences264–256 Mya — about 2 occurrences256–248 Mya — about 10 occurrences248–241 Mya — about 11 occurrences241–233 Mya — about 6 occurrences233–225 Mya — about 1 occurrence225–217 Mya — about 0.7 occurrences217–209 Mya — about 0.7 occurrences209–201 Mya — about 38 occurrences201–193 Mya — about 4 occurrences193–186 Mya — about 0.1 occurrences186–178 Mya — about 1 occurrence178–170 Mya — about 2 occurrences170–162 Mya — about 8 occurrences162–154 Mya — about 2 occurrences146–138 Mya — about 3 occurrences138–131 Mya — about 1 occurrence131–123 Mya — about 4 occurrences123–115 Mya — about 4 occurrences115–107 Mya — about 2 occurrences107–99 Mya — about 8 occurrences99–91 Mya — about 13 occurrences91–83 Mya — about 6 occurrences83–76 Mya — about 1 occurrence76–68 Mya — about 0.6 occurrences283.3 Mya83.6 Mya303 Mya68 Mya

149 occurrences of Polyacrodus on record, most of them in the Late Triassic. 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

149 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

53 formations

Grès de Mortinsart — 49.70°N, 5.66°EGrès de Mortinsart — 49.75°N, 5.79°EWestbury — 53.03°N, 0.81°WWestbury — 51.24°N, 2.34°WWestbury — 51.60°N, 2.63°WWestbury — 52.91°N, 0.90°WWestbury — 51.82°N, 2.41°WZhitkov — 42.93°N, 132.43°ETaho Limestone — 33.37°N, 132.67°EBalabansai — 41.33°N, 72.25°EIsheevo — 55.78°N, 48.93°EIsheevo — 55.04°N, 46.78°EFavret — 40.06°N, 117.56°WExter — 48.56°N, 9.07°EExter — 48.55°N, 9.07°EExter — 51.57°N, 9.05°EArtoles — 40.82°N, 0.28°WKhodzhakul — 40.10°N, 65.80°EXietan — 31.01°N, 110.59°EPaluxy — 32.95°N, 97.69°WPaluxy — 33.24°N, 97.60°WLueders — 33.80°N, 98.83°WBelle Plains — 33.70°N, 99.10°WAdmiral — 33.67°N, 98.83°WHambast — 31.56°N, 52.44°EGrès de Infralias — 48.01°N, 5.53°EAtherfield Clay — 50.62°N, 1.34°WDakota — 40.06°N, 97.34°WDakota — 38.92°N, 98.50°WCalcaires de Caen — 49.42°N, 0.40°EKiowa — 38.56°N, 97.83°WMarnes de Jamoigne — 49.72°N, 5.22°EKsar Metlili — 32.70°N, 3.22°WMissão Velha — 7.26°S, 39.14°W

Loading coastlines…

The named rock units Polyacrodus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 29 further formations hold fewer occurrences each and are not listed. 52 occurrences have no formation on record, which is common for older literature.

Polyacrodus and its relatives

Late Triassic

Where Polyacrodus and its relatives were recorded in the Late Triassic.

Found in the same rock

1,051 taxa

The Paleobiology Database records 123 sites for Polyacrodus, 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

85 references

Each of the 149 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. 73 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 content0

No picture of Polyacrodus was found. Wikipedia, Wikidata, iDigBio and Smithsonian Open Access were searched and had none.

GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Polyacrodus, or no answer at all. This entry cannot say which.

No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.

This is what the site found, which is not the same as what exists.

Keep going

What may have been alongside itPolyacrodontidae through timeFormations of the Late TriassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Jaekel 1889)