Ptychotrygon boothi

Fort Hays Sternberg Museum · CC0 · via GBIF. 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
- PtychotrygonPBDB
- Diet
- carnivorePBDB, for Chondrichthyes
- Life habit
- nektonicPBDB, for Chondrichthyes
- Motility
- actively mobilePBDB, for Chondrichthyes
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.
8 occurrences of Ptychotrygon boothi 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
8 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
Loading coastlines…
The named rock units Ptychotrygon boothi has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Ptychotrygon boothi and its relatives
Late CretaceousWhere Ptychotrygon boothi and its relatives were recorded in the Late Cretaceous.
Found in the same rock
52 taxa- Archaeolamna kopingensis5 sites
- Ischyrhiza mira5 sites
- Protoplatyrhina renae5 sites
- Brachaelurus bighornensis4 sites
- Carcharias holmdelensis4 sites
- Carcharias steineri4 sites
- Cretorectolobus olsoni4 sites
- Lonchidion griffisi4 sites
- Meristodonoides montanensis4 sites
- Myledaphus bipartitus4 sites
- Odontaspis aculeatus4 sites
- Pseudodontaspis herbsti4 sites
- Scapanorhynchus texanus4 sites
- Squalus worlandensis4 sites
- Synechodus turneri4 sites
- Texatrygon avonicola4 sites
- Archaeotriakis rochelleae3 sites
- Rhinobatos casieri3 sites
- Squalicorax kaupi3 sites
- Archaeotriakis ornatus2 sites
- Columbusia roessingi2 sites
- Hybodus wyomingensis2 sites
- Alligatoridae1 site
- Alostera saskatchewanensis1 site
The Paleobiology Database records 5 sites for Ptychotrygon boothi, 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
2 references- A new selachian fauna from the late Campanian of Wyoming (Teapot Sandstone Member, Mesaverde Formation, Big Horn Basin)7
- Cretaceous vertebrates of New Mexico1
Each of the 8 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content1

Picture of Ptychotrygon boothi
- Source
- GBIF
- Credit
- Fort Hays Sternberg Museum
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Ptychotrygon boothi 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itPtychotrygon through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Case 1987