Rhaeboceras

Rhaeboceras is an extinct genus of ammonite belonging to the subfamily Scaphitinae. Species belonging to the genus lived during the Cretaceous and have been found in the Pierre Shale of North America.

Rhaeboceras

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
ScaphitinaePBDB
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 98 million years on record.

The record covers at least 170.9 Mya to 72.2 Mya. No occurrence read is dated outside 174.7 Mya to 66 Mya.

Early Jurassic — about 0 of 71 occurrencesMiddle Jurassic — about 1 of 71 occurrencesMiddle JurassicLate Jurassic — about 0 of 71 occurrencesEarly Cretaceous — about 0 of 71 occurrencesLate Cretaceous — about 70 of 71 occurrencesLate CretaceousPaleocene — about 0 of 71 occurrences177–173 Mya — about 0.4 occurrences173–169 Mya — about 0.6 occurrences86–83 Mya — about 5 occurrences83–79 Mya — about 22 occurrences79–75 Mya — about 22 occurrences75–71 Mya — about 18 occurrences71–68 Mya — about 2 occurrences68–64 Mya — about 1 occurrence170.9 Mya72.2 Mya177 Mya64 Mya

71 occurrences of Rhaeboceras 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

71 occurrences

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

Bearpaw Shale — 47.01°N, 107.80°WBearpaw Shale — 46.71°N, 107.75°WBearpaw Shale — 48.64°N, 108.51°WBearpaw Shale — 48.45°N, 109.32°WBearpaw Shale — 48.08°N, 109.28°WBearpaw Shale — 48.03°N, 109.08°WBearpaw Shale — 47.85°N, 108.25°WBearpaw Shale — 47.61°N, 107.79°WBearpaw Shale — 47.71°N, 107.71°WBearpaw Shale — 47.71°N, 107.79°WBearpaw Shale — 47.60°N, 107.71°WBearpaw Shale — 47.62°N, 107.64°WBearpaw Shale — 47.67°N, 107.32°WBearpaw Shale — 47.70°N, 107.36°WBearpaw Shale — 47.71°N, 106.57°WBearpaw Shale — 47.85°N, 106.64°WBearpaw Shale — 48.16°N, 106.39°WBearpaw Shale — 47.45°N, 108.41°WBearpaw Shale — 47.05°N, 107.89°WBearpaw Shale — 46.73°N, 107.74°WBearpaw Shale — 46.79°N, 107.57°WBearpaw Shale — 45.66°N, 109.21°WBearpaw Shale — 45.30°N, 109.00°WPierre Shale — 44.83°N, 105.08°WPierre Shale — 43.27°N, 104.26°WPierre Shale — 42.98°N, 102.92°WPierre Shale — 41.41°N, 105.18°WPierre Shale — 40.72°N, 106.12°WPierre Shale — 40.90°N, 105.06°WPierre Shale — 40.73°N, 105.04°WPierre Shale — 40.71°N, 105.07°WPierre Shale — 40.51°N, 105.08°WPierre Shale — 46.91°N, 104.72°WPierre Shale — 46.95°N, 104.77°WBearpaw Shale — 49.98°N, 105.30°WBearpaw Shale — 49.80°N, 109.60°WBearpaw Shale — 49.67°N, 109.50°WBearpaw Shale — 49.40°N, 110.69°WBearpaw Shale — 49.00°N, 105.77°WBearpaw Shale — 49.74°N, 107.49°WBearpaw — 49.36°N, 110.42°WBearpaw — 49.45°N, 112.83°WBearpaw — 46.72°N, 107.73°WLewis Shale — 43.33°N, 106.17°W

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The named rock units Rhaeboceras has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.

Rhaeboceras and its relatives

Late Cretaceous

Where Rhaeboceras and its relatives were recorded in the Late Cretaceous.

Found in the same rock

86 taxa

The Paleobiology Database records 61 sites for Rhaeboceras, 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

7 references

Each of the 71 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

Credit
Kevmin
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

3D model

Source
Sketchfab
Licence
CC Attribution
Commercial use
cannot be read from the licence given — check the record

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 itScaphitinae through timeFormations of the Late CretaceousThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. Meek 1876