Prenoceratops
Prenoceratops, is a genus of herbivorous ceratopsian dinosaur from the Late Cretaceous Period. It was a relatively small dinosaur, reaching 1.3 m (4.3 ft) in length and 20 kg (44 lb) in body mass. Its fossils have been found in the upper Two Medicine Formation in the present-day U.S. state of Montana, in Campanian age rock layers that have been dated to 74.3 million years ago. Fossils were also found in the Oldman Formation in the modern day Canadian province of Alberta, dating to around 77 million years ago.

Uncredited · 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
- LeptoceratopsidaePBDB
- Diet
- herbivorePBDB, for Ceratopsia
- Life habit
- ground dwellingPBDB, for Ceratopsia
- Motility
- actively mobilePBDB, for Ornithischia
- Environment
- terrestrialPBDB, for Ceratopsia
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 Prenoceratops 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
- Two Medicine Formation · Montana Group1
- Oldman Formation · Belly River Group1
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The named rock units Prenoceratops has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Prenoceratops and its relatives
Late CretaceousWhere Prenoceratops and its relatives were recorded in the Late Cretaceous.
Found in the same rock
11 taxa- Gremlin slobodorum1 site
- Hesperonychus elizabethae1 site
- Lacertilia1 site
- Montanoolithus strongorum1 site
- Ornithurae1 site
- Reticuloolithus hirschi1 site
- Richardoestesia isosceles1 site
- Saurornitholestes1 site
- Spheroolithus albertensis1 site
- Troodon1 site
- Troodon formosus1 site
The Paleobiology Database records 2 sites for Prenoceratops, 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- First basal neoceratopsian from the Oldman Formation (Belly River Group), southern Alberta1
- Description of Prenoceratops pieganensis gen. et sp. nov. (Dinosauria: Neoceratopsia) from the Two Medicine Formation of Montana1
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. 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 Prenoceratops
- Source
- Wikipedia/Commons
- Credit
- nobody named on the record
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Prenoceratops 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 itLeptoceratopsidae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Chinnery 2004