Borissiakoceras orbiculatum
No picture of Borissiakoceras orbiculatum 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 Borissiakoceras orbiculatum, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- BorissjakocerasPBDB
- 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 100.5 Mya and 93.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
6 occurrences of Borissiakoceras orbiculatum 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
6 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
5 formations
- Belle Fourche Shale Formation2
- Eagle Ford Formation1
- Mancos Shale Formation1
- Greenhorn Formation1
- Belle Fourche Formation1
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The named rock units Borissiakoceras orbiculatum has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Borissiakoceras orbiculatum and its relatives
Late CretaceousWhere Borissiakoceras orbiculatum and its relatives were recorded in the Late Cretaceous.
Found in the same rock
43 taxa- Hamites cimarronensis3 sites
- Idiohamites bispinosus3 sites
- Acanthoceras amphibolum2 sites
- Cylichna2 sites
- Dunveganoceras (Plesiacanthoceras) wyomingense2 sites
- Inoceramus arvanus2 sites
- Neocardioceras laevigatum2 sites
- Tarrantoceras2 sites
- Tarrantoceras sellardsi2 sites
- Acanthoceratinae1 site
- Alzadites1 site
- Alzadites alzadensis1 site
- Alzadites incomptus1 site
- Alzadites westonensis1 site
- Brevicardium1 site
- Cadulus1 site
- Caestocorbula1 site
- Cryptometoicoceras mite1 site
- Cunningtoniceras lonsdalei1 site
- Cylindrotruncatum1 site
- Desmoceratidae1 site
- Euomphaloceras septemseriatum1 site
- Idiohamites pulchellus1 site
- Inoceramus prefragilis1 site
The Paleobiology Database records 6 sites for Borissiakoceras orbiculatum, 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
4 references- Cenomanian micromorphic ammonites from the western interior of the USA3
- Paleontology of the Greenhorn cylcothem (Cretaceous: late Cenomanian to middle Turonian) at Black Mesa, northeastern Arizona1
- Some Middle Cenomanian (Upper Cretaceous) acanthoceratid ammonites from the Western Interior of the United States1
- Basal Eagle Ford fauna (Cenomanian) in Johnson and Tarrant Counties, Texas1
Each of the 6 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 Borissiakoceras orbiculatum 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 Borissiakoceras orbiculatum, or no answer at all. This entry cannot say which.
No 3D scan of Borissiakoceras orbiculatum 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 itBorissjakoceras through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Stephenson 1955