Eoamaltheus
No picture of Eoamaltheus was found. Wikidata and iDigBio were searched and had none. Wikipedia and 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 Eoamaltheus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- FanninoceratinaePBDB
- 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 8.7 million years on record.
Every occurrence read is dated to somewhere between 192.9 Mya and 184.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
52 occurrences of Eoamaltheus 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
52 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
1 formation
Loading coastlines…
The named rock units Eoamaltheus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 51 occurrences have no formation on record, which is common for older literature.
Eoamaltheus and its relatives
Early JurassicWhere Eoamaltheus and its relatives were recorded in the Early Jurassic.
Found in the same rock
7 taxa- Calliphylloceras bicicolae1 site
- Dubariceras freboldi1 site
- Fanninoceras (Fanninoceras) fannini1 site
- Ichthyosauria1 site
- Juraphyllites planispira1 site
- Partschiceras striatocostatum1 site
- Pholadomya1 site
The Paleobiology Database records 30 sites for Eoamaltheus, 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
3 references- Ammoniten aus dem Pliensbachium (Carixium und Domerium) von Südamerika50
- Hettangian and Sinemurian (Lower Jurassic) biostratigraphy of Argentina1
- Early Jurassic Bivalvia of Argentina: Part 1, Stratigraphical introduction and superfamilies Nuculanacea, Arcacea, Mytilacea and Pinnacea1
Each of the 52 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 content0
No picture of Eoamaltheus was found. Wikidata and iDigBio were searched and had none.
Wikipedia and 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 Eoamaltheus, or no answer at all. This entry cannot say which.
No 3D scan of Eoamaltheus 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 itFanninoceratinae through timeFormations of the Early JurassicThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Hillebrandt 1981