Judithemys
Judithemys is an extinct genus of macrobaenid turtle from the Late Cretaceous of Alberta.

Uncredited · 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
- MacrobaenidaePBDB
- Diet
- omnivorePBDB, for Cryptodira
- Life habit
- aquaticPBDB, for Cryptodira
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- freshwaterPBDB, for Cryptodira
Time the record covers
At most 18 million years on record.
Every occurrence read is dated to somewhere between 83.6 Mya and 66 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Judithemys 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
- Dinosaur Park Formation · Belly River Group1
- Hell Creek Formation1
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The named rock units Judithemys has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Judithemys and its relatives
Late CretaceousWhere Judithemys and its relatives were recorded in the Late Cretaceous.
Found in the same rock
18 taxa- Adocus lineolatus1 site
- Anzu wyliei1 site
- Aspideretoides superstes1 site
- Axestemys infernalis1 site
- Baenidae1 site
- Basilemys sinuosa1 site
- Chelydroidea1 site
- Cocculus flabella1 site
- Compsemys victa1 site
- Dicotyledoneae1 site
- Dryophyllum1 site
- Fagaceae1 site
- Hutchemys sterea1 site
- Leepierceia preartocarpoides1 site
- Mollusca1 site
- Pachycephalosauria1 site
- Taxodium1 site
- Trochodendroides1 site
The Paleobiology Database records 2 sites for Judithemys, 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- A new species of trionychid turtle, Axestemys infernalis sp. nov., from the Late Cretaceous (Maastrichtian) Hell Creek and Lance formations of the Northern Great Plains, USA1
- A new eucryptodiran turtle from the Late Cretaceous of North America (Dinosaur Provincial Park, Alberta, Canada)1
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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Judithemys
- Source
- Wikipedia/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 Judithemys 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.
The description on this site
- Source
- Wikipedia, “Judithemys”
- 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 itMacrobaenidae through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Parham and Hutchison 2003