Egertonodus

Egertonodus is an extinct genus of shark-like hybodont fish. It includes E. basanus from the Jurassic of Europe and North Africa and Cretaceous of North America, North Africa and Europe, and E. duffini from the Middle Jurassic of England. Indeterminate remains of the genus have been reported from the Early Cretaceous of Asia. E. basanus is known from preserved skull material, while E. duffini is only known from teeth. The genus is distinguished from Hybodus sensu stricto by characters of the skull and teeth. E. basanus, the most common species, is thought to have reached 1.5 m in length. E. fraasi from the Late Jurassic of Germany, known from a poorly preserved full body fossil, was placed in Egertonodus in one study, but this has been subsequently questioned by other authors, due to strong differences in tooth morphology from the type species. Fossils have been found in freshwater and lagoonal environments.

Egertonodus

User:Haplochromis · CC BY-SA 3.0 · via Wikipedia/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
HybodontidaePBDB
Diet
carnivorePBDB, for Chondrichthyes
Life habit
nektonicPBDB, for Chondrichthyes
Motility
actively mobilePBDB, for Chondrichthyes

Time the record covers

At least 79 million years on record.

The record covers at least 165.3 Mya to 85.7 Mya. No occurrence read is dated outside 201.4 Mya to 66 Mya.

Late Triassic — about 0 of 49 occurrencesEarly Jurassic — about 0 of 49 occurrencesEarly JurassicMiddle Jurassic — about 1 of 49 occurrencesMiddle JurassicLate Jurassic — about 5 of 49 occurrencesLate JurassicEarly Cretaceous — about 40 of 49 occurrencesEarly CretaceousLate Cretaceous — about 2 of 49 occurrencesLate CretaceousPaleocene — about 0 of 49 occurrences204–199 Mya — about 0.0 occurrences199–195 Mya — about 0.0 occurrences195–190 Mya — about 0.0 occurrences190–185 Mya — about 0.0 occurrences185–181 Mya — about 0.0 occurrences181–176 Mya — about 0.0 occurrences176–171 Mya — about 0.0 occurrences171–167 Mya — about 0.6 occurrences167–162 Mya — about 0.5 occurrences162–157 Mya — about 0.3 occurrences157–152 Mya — about 0.8 occurrences152–148 Mya — about 0.4 occurrences148–143 Mya — about 4 occurrences143–138 Mya — about 13 occurrences138–134 Mya — about 13 occurrences134–129 Mya — about 1 occurrence129–124 Mya — about 2 occurrences124–120 Mya — about 4 occurrences120–115 Mya — about 4 occurrences115–110 Mya — about 2 occurrences110–106 Mya — about 0.7 occurrences106–101 Mya — about 0.7 occurrences101–96 Mya — about 0.8 occurrences96–91 Mya — about 0.4 occurrences91–87 Mya — about 0.1 occurrences87–82 Mya — about 1 occurrence82–77 Mya — about 0.1 occurrences77–73 Mya — about 0.1 occurrences73–68 Mya — about 0.1 occurrences68–63 Mya — about 0.0 occurrences165.3 Mya85.7 Mya204 Mya63 Mya

49 occurrences of Egertonodus on record, most of them in the Early Cretaceous. 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

49 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

19 formations

Durlston — 50.60°N, 1.95°WDurlston — 50.62°N, 2.25°WKsar Metlili — 32.70°N, 3.22°WLulworth — 50.60°N, 1.95°WWadhurst Clay — 50.89°N, 0.69°EWadhurst Clay — 50.86°N, 0.44°ECloverly — 44.65°N, 107.88°WCloverly — 44.51°N, 107.90°WAnnero — 59.31°N, 18.07°EHythe — 51.24°N, 0.05°WHythe — 51.24°N, 0.10°WSables de Glos — 49.11°N, 0.38°EDouiret — 32.48°N, 10.48°EWeald Clay — 52.72°N, 1.44°WBückeberg — 52.26°N, 7.03°EVega de Pas — 43.13°N, 3.78°WPoint Lookout — 35.20°N, 107.05°WWhite Limestone — 51.75°N, 1.17°WArundel Clay — 39.07°N, 76.87°WAtherfield Clay — 50.62°N, 1.34°WSolnhofen — 48.91°N, 11.14°EWoburn Sands — 52.03°N, 0.40°WSandgate — 51.24°N, 0.15°W

Loading coastlines…

The named rock units Egertonodus 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.

Egertonodus and its relatives

Early Cretaceous

Where Egertonodus and its relatives were recorded in the Early Cretaceous.

Found in the same rock

427 taxa

The Paleobiology Database records 49 sites for Egertonodus, 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

21 references

Each of the 49 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. 9 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 Egertonodus

Credit
User:Haplochromis
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Egertonodus 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.

The description on this site

Licence
CC BY-SA 4.0

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

Keep going

What may have been alongside itHybodontidae through timeFormations of the Early CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Maisey 1987