Sphaerodus

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

On record

Recorded, not inferred
Sits inside
SphaerodontidaePBDB
Motility
actively mobilePBDB, for Osteichthyes

Time the record covers

At least 133 million years on record.

The record covers at least 227.3 Mya to 93.9 Mya. No occurrence read is dated outside 237 Mya to 89.8 Mya.

Middle Triassic — about 0 of 18 occurrencesLate Triassic — about 3 of 18 occurrencesLate TriassicEarly Jurassic — about 0 of 18 occurrencesMiddle Jurassic — about 0 of 18 occurrencesLate Jurassic — about 7 of 18 occurrencesLate JurassicEarly Cretaceous — about 7 of 18 occurrencesEarly CretaceousLate Cretaceous — about 1 of 18 occurrencesLate Cretaceous240–235 Mya — about 0.2 occurrences235–230 Mya — about 0.5 occurrences230–225 Mya — about 0.3 occurrences209–204 Mya — about 0.7 occurrences204–199 Mya — about 1 occurrence158–153 Mya — about 7 occurrences143–138 Mya — about 0.6 occurrences138–133 Mya — about 0.4 occurrences133–128 Mya — about 1 occurrence128–123 Mya — about 0.6 occurrences123–117 Mya — about 0.5 occurrences117–112 Mya — about 1 occurrence112–107 Mya — about 2 occurrences107–102 Mya — about 0.4 occurrences102–97 Mya — about 0.1 occurrences97–92 Mya — about 0.5 occurrences92–87 Mya — about 0.5 occurrences227.3 Mya93.9 Mya240 Mya87 Mya

18 occurrences of Sphaerodus on record, most of them in the Late Jurassic. 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

18 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

6 formations

Korallenkalk — 52.36°N, 9.70°EZone de Pierre jaune — 47.05°N, 7.08°EBlue Anchor — 51.41°N, 3.17°WBückeberg — 52.26°N, 7.03°EMészhegy Sandstone — 45.88°N, 18.45°ETeplice — 50.40°N, 13.94°E

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The named rock units Sphaerodus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 6 occurrences have no formation on record, which is common for older literature.

Sphaerodus and its relatives

Late Jurassic

Where Sphaerodus and its relatives were recorded in the Late Jurassic.

Found in the same rock

264 taxa

The Paleobiology Database records 11 sites for Sphaerodus, 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

9 references

Each of the 18 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 content0

No picture of Sphaerodus was found. Wikidata and iDigBio were searched and had none.

Wikipedia and Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.

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

No 3D scan of Sphaerodus 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 itSphaerodontidae through timeFormations of the Late JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Agassiz 1833