Eoderoceratoidea
Eoderoceratoidea is a superfamily of true ammonites from the Lower Jurassic, comprising seven phylogenetically related families, characterized in general by having ribbed evolute shells that commonly bear spines or tubercles. Adult shell size ranges from 2 or 3 cm to giants reaching 50 cm in such genera as Apoderoceras, Epideroceras, and Liparoceras.
Daderot · CC0 · 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
- AmmonitinaPBDB
- 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 least 19 million years on record.
The record covers at least 199.5 Mya to 180.4 Mya. No occurrence read is dated outside 201.4 Mya to 161.5 Mya.
4,509 occurrences of Eoderoceratoidea 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
4,509 occurrences- Early Jurassic100%
- Middle Jurassicunder 1%
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
114 formations
- Fannin Formation · Maude Group239
- Inklin Formation · Laberge Group187
- Spatsizi Formation · Hazelton Group159
- Ghost Creek Formation · Maude Group134
- Sunrise Formation101
- Alum Shale Formation79
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The named rock units Eoderoceratoidea has been recovered from, largest first. Drawn where the rock is now, not where it formed. 90 further formations hold fewer occurrences each and are not listed. 2,282 occurrences have no formation on record, which is common for older literature.
Eoderoceratoidea and its relatives
Early JurassicWhere Eoderoceratoidea and its relatives were recorded in the Early Jurassic.
Found in the same rock
265 taxa- Tropidoceras actaeon34 sites
- Dactylioceras32 sites
- Dubariceras freboldi30 sites
- Ammonoidea29 sites
- Harpoceras27 sites
- Metaderoceras talkeetnaense27 sites
- Tropidoceras masseanum23 sites
- Parainoceramya matsumotoi22 sites
- Fuciniceras20 sites
- Metaderoceras gemmellaroi evolutum19 sites
- Fanninoceras (Fanninoceras) fannini17 sites
- Acanthopleuroceras thomsoni16 sites
- Bivalvia16 sites
- Pseudoskirroceras imlayi16 sites
- Tropidoceras16 sites
- Acanthopleuroceras whiteavesi15 sites
- Ammonitina14 sites
- Tropidoceras erythraeum12 sites
- Brachiopoda11 sites
- Metaderoceras mouterdei11 sites
- Miltoceras sellae11 sites
- Fanninoceras10 sites
- Lytoceras10 sites
- Polymorphites confusus10 sites
The Paleobiology Database records at least 1,177 sites for Eoderoceratoidea, and this reads 240 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
167 references- Les ammonites du Carixien des Causses (France)620
- Pliensbachian (Lower Jurassic) ammonites of the Queen Charlotte Islands, British Columbia368
- Ammoniten aus dem Pliensbachium (Carixium und Domerium) von Südamerika253
- Early Jurassic Bivalvia of western Canada. Part I. Subclasses Palaeotaxodonta, Pteriomorpha, and Isofilibranchia135
- Pliensbachian (Lower Jurassic) biostratigraphy and ammonite fauna of the Spatsizi area, north-central British Columbia127
- Les ammonites du Sinémurien et du Pliensbachien inférieur de la montagne du Bakony (Hongrie)113
- Toarcian (Early Jurassic) ammonoids from western North America109
- Pliensbachian–Toarcian (Early Jurassic) Ammonoids from the Luning Embayment, West-Central Nevada, U.S.A.101
- The Jet Rock Series and the Alum Shale Series of the Yorkshire coast97
- Provenance Constraints on Early Jurassic Evolution of the Northern Stikinian Arc: Laberge Group, Whitehorse Trough, Northwestern British Columbia95
- Early Jurassic evolution of the northern Stikinian arc: evidence from the Laberge Group, northwestern British Columbia92
- The Toarcian in the Subbetic basin (southern Spain): Bio-events (ammonite and calcareous nannofossils) and carbon-isotope stratigraphy89
Each of the 4,509 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. 155 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 Eoderoceratoidea
- Source
- Wikipedia/Commons
- Credit
- Daderot
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Eoderoceratoidea was found in MorphoSource and Sketchfab.
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 itAmmonitina through timeFormations of the Early JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Spath 1929