Exiteloceras
Exiteloceras is an ammonite genus from the Late Cretaceous.

Kevmin · CC BY-SA 3.0 · 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
- NostoceratidaePBDB
- 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 17 million years on record.
The record covers at least 89.8 Mya to 72.2 Mya. No occurrence read is dated outside 100.5 Mya to 66 Mya.
34 occurrences of Exiteloceras 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
34 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
9 formations
- Pierre Shale Formation · Montana Group22
- Marshalltown Formation1
- Dakhla Formation1
- Shinarish Formation1
- Moreno Formation · Great Valley Group1
- Ragged Valley Shale Formation · Asuncion Group1
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The named rock units Exiteloceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 4 occurrences have no formation on record, which is common for older literature.
Exiteloceras and its relatives
Late CretaceousWhere Exiteloceras and its relatives were recorded in the Late Cretaceous.
Found in the same rock
94 taxa- Inoceramus6 sites
- Bryozoa5 sites
- Nuculana5 sites
- Baculites rugosus4 sites
- Hoploscaphites4 sites
- Baculites3 sites
- Didymoceras stevensoni3 sites
- Placenticeras3 sites
- Solenoceras3 sites
- Atira2 sites
- Cryptorhytis2 sites
- Dentalium2 sites
- Menuites2 sites
- Nostoceras (Nostoceras)2 sites
- Ostrea2 sites
- Phelopteria linguaeformis2 sites
- Placenticeras intercalare2 sites
- Solenoceras crassum2 sites
- Solenoceras larimerense2 sites
- Aarcotrigonia sp.1 site
- Alectyonella panda1 site
- Anagaudryceras1 site
- Anagaudryceras mikobokense1 site
- Anaklinoceras1 site
The Paleobiology Database records 34 sites for Exiteloceras, 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
11 references- Late Campanian (Cretaceous) heteromorph ammonites17
- The Red Bird Section of the Upper Cretaceous Pierre Shale in Wyoming5
- Upper Cretaceous of the Pacific Coast4
- Ophthalmoplax (Decapoda: Brachyura: Portunoidea) from the late Campanian, Upper Cretaceous, of Colombia1
- Upper Campanian (Upper Cretaceous) cephalopods from the Parras Shale near Saucedas, Coahuila, Mexico1
- Maastrichtian to Paleocene depositional environment of the Dakhla Formation, Western Desert, Egypt: sedimentology, mineralogy, and integrated micro- and macrofossil biostratigraphies1
- Upper Campanian (Cretaceous) ammonites from the Shinarish Formation, Djebel Sinjar, northwest Iraq1
- Upper Campanian (Upper Cretaceous) ammonites from the Marshalltown Formation-Mount Laurel boundary beds in Delaware1
- Age relations of upper part of Lewis Shale on east side of San Juan Basin, New Mexico1
- Occurrence of the Late Cretaceous ammonites Didymoceras stevensoni (Whitfield) and Exiteloceras jenneyi (Whitfield) in Delaware1
- Upper Cretaceous ammonites of California. Part III1
Each of the 34 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 content1
Picture of Exiteloceras
- Source
- Wikipedia/Commons
- Credit
- Kevmin
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Exiteloceras 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.
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 itNostoceratidae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Hyatt 1894