Rhaeboceras halli

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
- RhaebocerasPBDB
- 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.
34 occurrences of Rhaeboceras halli 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
5 formations
- Bearpaw Shale Formation · Montana Group23
- Pierre Shale Formation · Montana Group8
- Bearpaw Shale Formation1
- Lewis Shale Formation1
- Bearpaw Formation1
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The named rock units Rhaeboceras halli has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Rhaeboceras halli and its relatives
Late CretaceousWhere Rhaeboceras halli and its relatives were recorded in the Late Cretaceous.
Found in the same rock
7 taxa- Baculites compressus2 sites
- Rhaeboceras coloradoense2 sites
- Baculites jenseni1 site
- Hoploscaphites brevis1 site
- Pseudobaculites1 site
- Rhaeboceras burkholderi1 site
- Scaphites1 site
The Paleobiology Database records 34 sites for Rhaeboceras halli, 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
3 references- The Upper Cretaceous ammonite Rhaeboceras Meek in the western interior of the United States32
- Scaphitids from the Upper Campanian-Lower Maastrichtian Bearpaw Formation of the Western Interior of Canada1
- New Baculites from the Bearpaw Shale and Equivalent Rocks of the Western Interior1
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 content2

Picture of Rhaeboceras halli
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Credit
- Shellie Luallin
- Licence
- CC Attribution
- Commercial use
- cannot be read from the licence given — check the record
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 itRhaeboceras through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Meek and Hayden 1856)