Eurycephalites extremus
No picture of Eurycephalites extremus was found. Wikipedia, Wikidata and iDigBio were searched and had none. 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 Eurycephalites extremus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- EurycephalitesPBDB
- Diet
- carnivorePBDB, for Ammonoidea
- Life habit
- nektonicPBDB, for Ammonoidea
- Motility
- fast-movingPBDB, for Ammonoidea
- Vision
- well-developedPBDB, for Cephalopoda
- Environment
- marinePBDB, for Cephalopoda
Time the record covers
At most 6.7 million years on record.
Every occurrence read is dated to somewhere between 168.2 Mya and 161.5 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Eurycephalites extremus 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
3 occurrences- Middle Jurassic100%
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
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The named rock units Eurycephalites extremus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Eurycephalites extremus and its relatives
Middle JurassicWhere Eurycephalites extremus and its relatives were recorded in the Middle Jurassic.
Found in the same rock
7 taxa- Araucanites1 site
- Eurycephalites involutus1 site
- Eurycephalites rotundus1 site
- Hecticoceras1 site
- Neuqueniceras1 site
- Phylloceras1 site
- Xenocephalites1 site
The Paleobiology Database records 3 sites for Eurycephalites extremus, and this reads all of them. The number is how many of those sites it was catalogued from too.
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
2 references- Oxfordian and late Callovian ammonite faunas and biostratigraphy of the Neuquen-Mendoza and Tarapaca Basins (Jurassic, Ammonoidea, Western South-America)2
- Upper Bathonian and lower Callovian ammonites from Chacay Melehué (Argentina)1
Each of the 3 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 the Paleobiology Database's own record for the work.
Media and terms
Media content0
No picture of Eurycephalites extremus was found. Wikipedia, Wikidata and iDigBio were searched and had none.
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 Eurycephalites extremus, or no answer at all. This entry cannot say which.
No 3D scan of Eurycephalites extremus 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 itEurycephalites through timeFormations of the Middle JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Tornquist 1898)