Desmatochelys padillai
Desmatochelys is an extinct genus of sea turtles belonging to the family Protostegidae. This genus contains two known species, D. lowii and D. padillai. D. lowii was first discovered in 1895, followed by D. padillai in 2015. Having been estimated at over 120 million years old, D. padillai is currently the oldest known species of sea turtle.

Oliver Perry Hay (1846 - 1930) · Public Domain · 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
- DesmatochelysPBDB
- Diet
- omnivorePBDB, for Cryptodira
- Life habit
- aquaticPBDB, for Cryptodira
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- marinePBDB, for Chelonioidea
Time the record covers
At most 6.2 million years on record.
Every occurrence read is dated to somewhere between 125.77 Mya and 119.57 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Desmatochelys padillai on record, most of them in the Early 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- Early 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
1 formation
Loading coastlines…
The named rock units Desmatochelys padillai has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Desmatochelys padillai and its relatives
Early CretaceousWhere Desmatochelys padillai and its relatives were recorded in the Early Cretaceous.
Found in the same rock
5 taxa- Chelonioidea indet.1 site
- Colchidites1 site
- Crioceratites portarum1 site
- Leyvachelys cipadi1 site
- Psilotissotia (Buergliceras)1 site
The Paleobiology Database records 2 sites for Desmatochelys padillai, 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 gravid fossil turtle from the Early Cretaceous reveals a different egg development strategy to that of extant marine turtles1
- Oldest known marine turtle? A new protostegid from the Lower Cretaceous of Colombia1
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 Desmatochelys padillai
- Source
- Wikipedia/Commons
- Credit
- Oliver Perry Hay (1846 - 1930)
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Desmatochelys padillai 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
- 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 itDesmatochelys through timeFormations of the Early CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Cadena and Parham 2015