Spiroxybeloceras meekanum

via iDigBio · CC0 · via iDigBio. 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
- SpiroxybelocerasPBDB
- 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.
2 occurrences of Spiroxybeloceras meekanum 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
2 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
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The named rock units Spiroxybeloceras meekanum has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Spiroxybeloceras meekanum and its relatives
Late CretaceousWhere Spiroxybeloceras meekanum and its relatives were recorded in the Late Cretaceous.
Found in the same rock
19 taxa- Didymoceras cheyennense2 sites
- Anaklinoceras reflexum1 site
- Anaklinoceras tenuicostatum1 site
- Arcoscalpellum bakeri1 site
- Arcoscalpellum withersi1 site
- Baculites ovatus1 site
- Baculites undatus1 site
- Cretiscalpellum homseyi1 site
- Didymoceras draconis1 site
- Eulophoceras1 site
- Hoploscaphites vistulensis1 site
- Jeletzkytes compressus1 site
- Myolepas solida1 site
- Pachydiscus (Pachydiscus)1 site
- Placenticeras1 site
- Placenticeras placenta1 site
- Solenoceras annulifer1 site
- Virgiscalpellum gabbi cf. apertus1 site
- Virgiscalpellum gabbi heintzi1 site
The Paleobiology Database records 2 sites for Spiroxybeloceras meekanum, 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
2 references- Late Campanian (Cretaceous) heteromorph ammonites1
- Upper Campanian ammonites from the Mount Laurel Sand at Biggs Farm, Delaware1
Each of the 2 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Spiroxybeloceras meekanum
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Spiroxybeloceras meekanum 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 itSpiroxybeloceras through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Whitfield 1877)