Ptilodontoidea

Uncredited · via Wikidata/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
- CimolodontaPBDB
- Diet
- omnivorePBDB
- Life habit
- arborealPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Mammalia
Time the record covers
At least 56 million years on record.
The record covers at least 93.9 Mya to 37 Mya. No occurrence read is dated outside 106.3 Mya to 33.9 Mya.
978 occurrences of Ptilodontoidea on record, most of them in the Paleocene. 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
978 occurrences- Early Cretaceousunder 1%
- Late Cretaceous34%
- Paleocene55%
- Eocene11%
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
81 formations
- Fort Union Formation175
- Hell Creek Formation · Montana Group110
- Lance Formation85
- Paskapoo Formation82
- Willwood Formation44
- Ravenscrag Formation29
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The named rock units Ptilodontoidea has been recovered from, largest first. Drawn where the rock is now, not where it formed. 57 further formations hold fewer occurrences each and are not listed. 80 occurrences have no formation on record, which is common for older literature.
Ptilodontoidea and its relatives
PaleoceneWhere Ptilodontoidea and its relatives were recorded in the Paleocene.
Found in the same rock
1,239 taxa- Mesodma68 sites
- Cimolodon nitidus62 sites
- Mesodma thompsoni48 sites
- Meniscoessus robustus45 sites
- Trionychidae37 sites
- Didelphodon vorax36 sites
- Scapherpeton tectum35 sites
- Champsosaurus34 sites
- Lepisosteus occidentalis34 sites
- Mesodma formosa34 sites
- Myledaphus bipartitus34 sites
- Theropoda30 sites
- Brachychampsa montana29 sites
- Opisthotriton kayi29 sites
- Gypsonictops hypoconus28 sites
- Crocodylia27 sites
- Habrosaurus dilatus27 sites
- Borealosuchus sternbergii26 sites
- Protolambda hatcheri26 sites
- Anura25 sites
- Cimolomys gracilis25 sites
- Ptilodus25 sites
- Stygimys kuszmauli25 sites
- Lonchidion selachos24 sites
The Paleobiology Database records 460 sites for Ptilodontoidea, and this reads 240 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
186 references- The succession of Paleocene mammals in western Canada51
- Multituberculates from the Wasatchian Land-Mammal Age, Early Eocene, of Western North America44
- Fossil mammals of the type Lance Formation, Wyoming. Part I. Introduction and Marsupialia36
- Late Cretaceous and Paleocene mammal localities of southern Alberta34
- Paleontology and biostratigraphy of lower part of Polecat Bench Formation, southern Bighorn Basin, Wyoming27
- A study of Mammalia and geology across the Cretaceous-Tertiary boundary in Garfield County, Montana27
- The Clarkforkian Land-Mammal Age and Mammalian Faunal Composition Across the Paleocene-Eocene Boundary27
- The Bug Creek problem and the Cretaceous-Tertiary transition at McGuire Creek, Montana26
- The Tiffanian Land-Mammal Age (middle and late Paleocene) in the northern Bighorn Basin, Wyoming21
- Synonymies and reidentifications of North American fossil mammals21
- Paleocene and latest Cretaceous mammal ages, biozones, magnetozones, rates of sedimentation, and evolution21
- The mammals and horned dinosaurs of the Lance Formation of Niobrara County, Wyoming21
Each of the 978 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. 174 further references are not listed. 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 Ptilodontoidea
- Source
- Wikidata/Commons
- Credit
- nobody named on the record
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Ptilodontoidea was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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 itCimolodonta through timeFormations of the PaleoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Sloan and Van Valen 1965)