Toxochelyidae

Ryan Somma · CC BY-SA 2.0 · 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
- ChelonioideaPBDB
- Diet
- omnivorePBDB, for Cryptodira
- Life habit
- aquaticPBDB, for Cryptodira
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- marinePBDB, for Chelonioidea
Time the record covers
At least 123 million years on record.
The record covers at least 161.5 Mya to 37.71 Mya. No occurrence read is dated outside 165.3 Mya to 33.9 Mya.
40 occurrences of Toxochelyidae 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
40 occurrencesThese 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
19 formations
- Dinosaur Park Formation · Belly River Group9
- Niobrara Formation · Colorado Group5
- Paluxy Formation · Trinity Group3
- Bearpaw Shale Formation1
- Severn Formation1
- Mesaverde Formation1
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The named rock units Toxochelyidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 7 occurrences have no formation on record, which is common for older literature.
Toxochelyidae and its relatives
Late CretaceousWhere Toxochelyidae and its relatives were recorded in the Late Cretaceous.
Found in the same rock
303 taxa- Lophochelys13 sites
- Meristodonoides montanensis10 sites
- Teleostei10 sites
- Trionychidae10 sites
- Belonostomus longirostris9 sites
- Champsosaurus natator9 sites
- Holostei9 sites
- Lepisosteus occidentalis9 sites
- Myledaphus bipartitus9 sites
- Opisthotriton kayi9 sites
- Paralbula casei9 sites
- Scapherpeton tectum9 sites
- Acipenser albertensis8 sites
- Coriops amnicolus8 sites
- Marsupialia8 sites
- Amiidae7 sites
- Leidyosuchus canadensis7 sites
- Polyodontidae7 sites
- Theropoda7 sites
- Ceratopsia6 sites
- Chelydridae6 sites
- Anura5 sites
- Baenidae5 sites
- Hadrosauridae5 sites
The Paleobiology Database records 39 sites for Toxochelyidae, 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
26 references- Paleoecology of an estuarine, incised-valley fill in the Dinosaur Park Formation (Judith River Group, Upper Cretaceous) of southern Alberta, Canada7
- The vertebrate fauna of the Selma Formation of Alabama. Part IV. The turtles of the family Toxochelyidae5
- Marine turtles from the Late Cretaceous of Alberta, Canada3
- Lower vertebrate faunas of the Trinity Division on north-central Texas3
- Turtles from the Upper Cretaceous of the Izhberda Locality (Orenburg Region, Russia)1
- Palynology of a Late Cretaceous vertebrate site in northeastern Mississippi, U.S.A.—implications for floristics, biostratigraphy and climate1
- Paleogene chelonians from Maryland and Virginia1
- The oldest true sea turtle of the world, Oertelia gigantea (oertel, 1914) n. gen. from the Aptian of Kastendamm near Hanover, Germany1
- Two Eocene chelonioid turtles from Northland, New Zealand1
- Amphibian, reptilian, and avian remains from the Fox Hills Formation (Maastrichtian): shoreline and estuarine deposits of the Pierre Sea in south-central North Dakota1
- The nonmammalian vertebrate microfossil assemblages of the Mesaverde Formation (Upper Cretaceous, Campanian) of the Wind River and Bighorn Basins, Wyoming1
- Carnivorous dinosaurs (Saurischia, Theropoda) from the Maastrichtian of the Volga-Don interfluve, Russia1
Each of the 40 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. 14 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 Toxochelyidae
- Source
- Wikidata/Commons
- Credit
- Ryan Somma
- Licence
- CC BY-SA 2.0
- Commercial use
- the licence allows it
No 3D scan of Toxochelyidae 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 itChelonioidea through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Baur 1895