Tyrannoneustes lythrodectikos

Tyrannoneustes is an extinct genus of geosaurine metriorhynchid crocodyliform from the Callovian stage Oxford Clay Formation of England and the Marnes de Dives of France. It contains a single species, Tyrannoneustes lythrodectikos, meaning "blood-biting tyrant swimmer".

Tyrannoneustes lythrodectikos

LiterallyMiguel · CC BY 4.0 · 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
TyrannoneustesPBDB
Diet
carnivorePBDB, for Thalattosuchia
Life habit
nektonicPBDB, for Thalattosuchia
Motility
actively mobilePBDB, for Thalattosuchia
Environment
marinePBDB, for Thalattosuchia

Time the record covers

At most 3.8 million years on record.

Every occurrence read is dated to somewhere between 165.3 Mya and 161.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Middle Jurassic — about 5 of 5 occurrencesMiddle JurassicLate Jurassic — about 0 of 5 occurrences165–165 Mya — about 0.2 occurrences165–165 Mya — about 0.2 occurrences165–165 Mya — about 0.2 occurrences165–165 Mya — about 0.2 occurrences165–165 Mya — about 0.2 occurrences165–164 Mya — about 0.2 occurrences164–164 Mya — about 0.2 occurrences164–164 Mya — about 0.2 occurrences164–164 Mya — about 0.2 occurrences164–164 Mya — about 0.2 occurrences164–164 Mya — about 0.2 occurrences164–163 Mya — about 0.2 occurrences163–163 Mya — about 0.2 occurrences163–163 Mya — about 0.2 occurrences163–163 Mya — about 0.2 occurrences163–163 Mya — about 0.2 occurrences163–163 Mya — about 0.2 occurrences163–162 Mya — about 0.2 occurrences162–162 Mya — about 0.2 occurrences162–162 Mya — about 0.2 occurrences162–162 Mya — about 0.2 occurrences162–162 Mya — about 0.2 occurrences162–162 Mya — about 0.2 occurrences162–161 Mya — about 0.2 occurrences165.8 Mya161 Mya

5 occurrences of Tyrannoneustes lythrodectikos on record, most of them in the Middle 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

5 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

3 formations

Oxford Clay — 52.55°N, 0.24°WMarnes de Dives — 49.34°N, 0.03°EOrnatenton — 52.26°N, 8.81°E

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The named rock units Tyrannoneustes lythrodectikos has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Tyrannoneustes lythrodectikos and its relatives

Middle Jurassic

Where Tyrannoneustes lythrodectikos and its relatives were recorded in the Middle Jurassic.

Found in the same rock

33 taxa

The Paleobiology Database records 5 sites for Tyrannoneustes lythrodectikos, 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

3 references

Each of the 5 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content2

Picture of Tyrannoneustes lythrodectikos

Credit
LiterallyMiguel
Licence
CC BY 4.0
Commercial use
the licence allows it

Laser scan

Licence
not stated by the source
Commercial use
cannot be read from the licence given — check the record
Specimen
Tyrannoneustes lythrodectikos · camsm:64373

Smithsonian Open Access was 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 itTyrannoneustes through timeFormations of the Middle JurassicThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Young et al. 2013