Kinosternon arizonense
Kinosternon arizonense is an extinct species of mud turtle in the genus Kinosternon. Initially described by Charles W. Gilmore in 1922. In 2016 McCord examined available Pliocene material of K. arizonense and concluded that the fossil material differs significantly from the extant turtles. Joyce and Bourque (2016) concurred. Rhodin et al. (2017), listed Kinosternon arizonense as extinct.

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- Also called
- Arizona mud turtlePBDB
- Sits inside
- KinosternonPBDB
- Diet
- omnivorePBDB, for Cryptodira
- Life habit
- aquaticPBDB, for Cryptodira
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- freshwaterPBDB, for Cryptodira
Time the record covers
At most 3.3 million years on record.
The one occurrence read is dated to somewhere between 4.7 Mya and 1.4 Mya, which is a dating window rather than a span.
1 occurrence of Kinosternon arizonense on record, most of them in the Pliocene. 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
1 occurrences- Pliocene64%
- Pleistocene36%
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
1 formation
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The named rock units Kinosternon arizonense has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Kinosternon arizonense and its relatives
PlioceneWhere Kinosternon arizonense and its relatives were recorded in the Pliocene.
Found in the same rock
29 taxa- Aluralagus bensonensis1 site
- Ambystoma tigrinum1 site
- Antilocapridae1 site
- Baiomys minimus1 site
- Bensonomys arizonae1 site
- Borophagus1 site
- Bufo1 site
- Bufo alvarius1 site
- Bufo woodhousei1 site
- Camelops1 site
- Chasmaporthetes ossifragus1 site
- Citellus (Otospermophilus) bensoni1 site
- Cratogeomys bensoni1 site
- Cuvieronius1 site
- Dipodomys minor1 site
- Equus1 site
- Felinae1 site
- Geomys (Nerterogeomys) minor1 site
- Gomphotheriidae1 site
- Hypolagus ringoldensis1 site
- Leporidae1 site
- Mustelidae1 site
- Nannippus peninsulatus1 site
- Neotoma (Paraneotoma) fossilis1 site
The Paleobiology Database records 1 site for Kinosternon arizonense, 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
1 referenceEach of the 1 occurrence 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 Kinosternon arizonense
- 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 Kinosternon arizonense 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
- 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 itKinosternon through timeFormations of the PlioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Gilmore 1922