Pleurodonta
Searched as Pleurodonta indet.. The Paleobiology Database treats Pleurodonta as the accepted name.
Pleurodonta is one of the two subdivisions of Iguania, the other being Acrodonta. Pleurodonta includes all families previously split from Iguanidae sensu lato, whereas Acrodonta includes Agamidae and Chamaeleonidae. The name Pleurodonta was first used by paleontologist and herpetologist Edward Drinker Cope in 1864, although he used it in a different sense than it is used today. Because of this difference, the name Iguanoidea has been proposed as a replacement for Pleurodonta in phylogenetic nomenclature.

Marcel Burkhard/ Cele4 , www.tierlexikon.ch · CC BY-SA 3.0 · 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
- IguanomorphaPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Amniota
Time the record covers
At least 47 million years on record.
The record covers at least 66 Mya to 18.5 Mya. No occurrence read is dated outside 72.2 Mya to 16.3 Mya.
4 occurrences of Pleurodonta on record, most of them in the Miocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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
4 occurrences- Late Cretaceous25%
- Miocene75%
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
- Arikaree Formation3
- Allen Formation · Malargüe Group1
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The named rock units Pleurodonta has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Pleurodonta and its relatives
MioceneWhere Pleurodonta and its relatives were recorded in the Miocene.
Found in the same rock
3,518 taxa- Iguanidae36 sites
- Praecardium28 sites
- Equus26 sites
- Rana25 sites
- Thamnophis25 sites
- Bufo24 sites
- Phrynosoma24 sites
- Sceloporus22 sites
- Sceloporus undulatus22 sites
- Glyptosaurinae21 sites
- Rana pipiens20 sites
- Ambystoma tigrinum19 sites
- Anolis18 sites
- Leiocephalus18 sites
- Serpentes18 sites
- Anura17 sites
- Bufo woodhousei17 sites
- Anguidae16 sites
- Boidae16 sites
- Crotalus16 sites
- Amphisbaenidae15 sites
- Aves15 sites
- Eumeces15 sites
- Hyla15 sites
The Paleobiology Database records 273 sites for Pleurodonta, and this reads 240 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- Iguanian lizards from the Split Rock Formation, Wyoming: exploring the modernization of the North American lizard fauna3
- A Late Cretaceous lizard assemblage from the Allen Formation, northern Patagonia, Argentina1
Each of the 4 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 Pleurodonta
- Source
- Wikipedia/Commons
- Credit
- Marcel Burkhard/ Cele4 , www.tierlexikon.ch
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan of Pleurodonta 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
- Source
- Wikipedia, “Pleurodonta”
- 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 itIguanomorpha through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Cope 1864)