Orthechioceras

Paul Antun · CC0 · via GBIF. 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
- EchioceratidaePBDB
- 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 6.6 million years on record.
Every occurrence read is dated to somewhere between 199.5 Mya and 192.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
23 occurrences of Orthechioceras on record, most of them in the Early 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
23 occurrences- Early 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
2 formations
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The named rock units Orthechioceras 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.
Orthechioceras and its relatives
Early JurassicWhere Orthechioceras and its relatives were recorded in the Early Jurassic.
Found in the same rock
9 taxa- Adnethiceras1 site
- Angulaticeras1 site
- Arnioceras1 site
- Cheltonia galeata1 site
- Dudresnayiceras suessiforme1 site
- Gleviceras guibalianum1 site
- Lytoceras celticum1 site
- Plesechioceras pierrei1 site
- Tetraspidoceras1 site
The Paleobiology Database records 3 sites for Orthechioceras, 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
6 references- Ammonites from the Lower Jurassic (Sinemurian) of Tenango de Doria (Sierra Madre Oriental, Mexico). Part IV: Biostratigraphy, palaeobiogeography and taxonomic addendum.16
- Early Jurassic (Sinemurian) ammonoids from the boulders of the Greek Quarry, central Crimea2
- Ammonites sinémuriennes du Haut-Atlas marocain2
- Systematics and evolutionary implications of Early Jurassic belemnites from the Peri-Mediterranean Tethys1
- The stratigraphy and palaeogeographic position of the Jurassic successions of the Priborzhavske-Perechin Zone in the Pieniny Klippen Belt of the Transcarpathian Ukraine1
- Les ammonites du jurassique inférieur et moyen de la dorsal tunisienne1
Each of the 23 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 content1

Picture of Orthechioceras
- Source
- GBIF
- Credit
- Paul Antun
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Orthechioceras 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 itEchioceratidae through timeFormations of the Early JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Trueman and Williams 1925