Didymoceras donezianum
No picture of Didymoceras donezianum 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 Didymoceras donezianum, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- DidymocerasPBDB
- 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 12 million years on record.
Every occurrence read is dated to somewhere between 83.6 Mya and 72.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Didymoceras donezianum on record, most of them in the Late Cretaceous. 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- Late Cretaceous100%
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
- Ozan Formation · Taylor Group1
- Parras Formation1
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The named rock units Didymoceras donezianum has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Didymoceras donezianum and its relatives
Late CretaceousWhere Didymoceras donezianum and its relatives were recorded in the Late Cretaceous.
Found in the same rock
65 taxa- Baculites2 sites
- Bostrychoceras polyplocum2 sites
- Neancyloceras bipunctatum2 sites
- Austinocrinus rothpletzi1 site
- Baculites taylorensis1 site
- Cardiaster1 site
- Cardiidae1 site
- Cataceramus balticus1 site
- Coraster1 site
- Cremnoceramus1 site
- Cuspidaria1 site
- Desmophyllites larteti1 site
- Dhondtichlamys1 site
- Didymoceras binodosum1 site
- Diplomoceras cylindraceum1 site
- Echinocorys1 site
- Endocostea regularis1 site
- Eutrephoceras irritilasi1 site
- Exiteloceras jenneyi1 site
- Ganbirretia1 site
- Gaudryceras1 site
- Glyptoxoceras retrorsum1 site
- Hauericeras fayoli1 site
- Hoplitoplacenticeras (Hoplitoplacenticeras) preyi1 site
The Paleobiology Database records 3 sites for Didymoceras donezianum, 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- Upper Campanian (Upper Cretaceous) cephalopods from the Parras Shale near Saucedas, Coahuila, Mexico1
- New Late Campanian ammonites from the Gschliefgraben near Gmuden (Ultrahelvetic, Austria)1
- Upper Campanian ammonites from the Ozan-Annona Formation boundary in Southwestern Arkansas1
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. 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 Didymoceras donezianum 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 Didymoceras donezianum, or no answer at all. This entry cannot say which.
No 3D scan of Didymoceras donezianum 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itDidymoceras through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Michailov 1951)