Pectinodon bakkeri
Pectinodon is a genus of troodontid theropod dinosaurs from the end of the Maastrichtian age of the Late Cretaceous period (66 mya). It currently contains a single valid species, Pectinodon bakkeri, known only from teeth.

Derek W. Larson, Philip J. Currie · CC BY 2.5 · 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
- PectinodonPBDB
- Diet
- carnivore, omnivorePBDB, for Troodontidae
- Life habit
- ground dwellingPBDB, for Troodontidae
- Motility
- actively mobilePBDB, for Theropoda
- Environment
- terrestrialPBDB, for Troodontidae
Time the record covers
At most 6.2 million years on record.
Every occurrence read is dated to somewhere between 72.2 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
5 occurrences of Pectinodon bakkeri 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
5 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
- Lance Formation4
- Hell Creek Formation · Montana Group1
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The named rock units Pectinodon bakkeri has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Pectinodon bakkeri and its relatives
Late CretaceousWhere Pectinodon bakkeri and its relatives were recorded in the Late Cretaceous.
Found in the same rock
218 taxa- Champsosaurus5 sites
- Paronychodon5 sites
- Basilemys4 sites
- Belonostomus longirostris4 sites
- Borealosuchus sternbergii4 sites
- Brachychampsa montana4 sites
- Chamops segnis4 sites
- Chelydridae4 sites
- Cimolestes incisus4 sites
- Cimolodon nitidus4 sites
- Cimolomys gracilis4 sites
- Compsemys victa4 sites
- Cyclurus fragosus4 sites
- Didelphodon vorax4 sites
- Elopidae4 sites
- Emydinae4 sites
- Gypsonictops hypoconus4 sites
- Habrosaurus dilatus4 sites
- Lepisosteus occidentalis4 sites
- Leptalestes cooki4 sites
- Meniscoessus robustus4 sites
- Meniscognathus altmani4 sites
- Mesodma thompsoni4 sites
- Odaxosaurus piger4 sites
The Paleobiology Database records 5 sites for Pectinodon bakkeri, 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
3 references- Baby dinosaurs from the Late Cretaceous Lance and Hell Creek formations and a description of a new species of theropod3
- The paleontology, geology and taphonomy of the Tooth Draw Deposit; Hell Creek Formation (Maastrictian), Butte County, South Dakota1
- Multivariate analyses of small theropod dinosaur teeth and implications for paleoecological turnover through time1
Each of the 5 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 Pectinodon bakkeri
- Source
- Wikipedia/Commons
- Credit
- Derek W. Larson, Philip J. Currie
- Licence
- CC BY 2.5
- Commercial use
- the licence allows it
No 3D scan of Pectinodon bakkeri 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
- Source
- Wikipedia, “Pectinodon”
- 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 itPectinodon through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Carpenter 1982)