Tarrantoceras sellardsi
No picture of Tarrantoceras sellardsi 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 Tarrantoceras sellardsi, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- TarrantocerasPBDB
- 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.
22 occurrences of Tarrantoceras sellardsi 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
22 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
6 formations
- Eagle Ford Formation10
- Mancos Shale Formation5
- Chispa Summit Formation3
- Boquillas Formation2
- Belle Fourche Shale Formation1
- Dakota Sandstone Formation1
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The named rock units Tarrantoceras sellardsi has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Tarrantoceras sellardsi and its relatives
Late CretaceousWhere Tarrantoceras sellardsi and its relatives were recorded in the Late Cretaceous.
Found in the same rock
34 taxa- Inoceramus arvanus8 sites
- Acanthoceras amphibolum7 sites
- Ostrea beloiti4 sites
- Borissiakoceras orbiculatum2 sites
- Caestocorbula2 sites
- Calycoceras (Gentoniceras) leonense2 sites
- Cunningtoniceras johnsonanum2 sites
- Cunningtoniceras lonsdalei2 sites
- Lispodesthes2 sites
- Paracompsoceras landisi2 sites
- Turrilites acutus2 sites
- Acanthoceras bellense1 site
- Acanthoceras johnsonianum1 site
- Acompsoceras1 site
- Anisoceras plicatilis1 site
- Brevicardium1 site
- Cadulus1 site
- Cylichna1 site
- Desmoceras (Pseudouhligella)1 site
- Desmoceratidae1 site
- Enchodus1 site
- Eostriatolamia1 site
- Exogyra columbella1 site
- Hybodontidae1 site
The Paleobiology Database records 19 sites for Tarrantoceras sellardsi, 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
5 references- Tarrantoceras Stephenson and related ammonoid genera from Cenomanian (Upper Cretaceous) rocks in Texas and the western interior of the United States12
- Basal Eagle Ford fauna (Cenomanian) in Johnson and Tarrant Counties, Texas6
- A selachian-dominated assemblage from the Upper Cretaceous (Cenomanian) Clay Mesa Member, Mancos Formation, Santa Fe County, NM2
- Middle Cenomanian (Late Cretaceous) molluscan fauna from the base of the Boquillas Formation, Cerro de Muleros, Dona Ana County, New Mexico1
- Handbook of Cretaceous fossils1
Each of the 22 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 Tarrantoceras sellardsi 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 Tarrantoceras sellardsi, or no answer at all. This entry cannot say which.
No 3D scan of Tarrantoceras sellardsi 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 itTarrantoceras through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Adkins 1928)