Diadectomorpha

Searched as Diadectomorpha indet.. The Paleobiology Database treats Diadectomorpha as the accepted name.

Diadectomorpha is a clade of large tetrapods that lived in Euramerica during the Carboniferous and Early Permian periods and in Asia during Late Permian (Wuchiapingian), They have typically been classified as advanced reptiliomorphs positioned close to, but outside of the clade Amniota, though some recent research has recovered them as the sister group to the traditional Synapsida within Amniota, based on inner ear anatomy and cladistic analyses. They include both large carnivorous and even larger herbivorous forms, some semi-aquatic and others fully terrestrial. The diadectomorphs seem to have originated during late Mississippian times, although they only became common after the Carboniferous rainforest collapse and flourished during the Late Pennsylvanian and Early Permian periods.

Diadectomorpha

Ghedoghedo · 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
CotylosauriaPBDB
Motility
actively mobilePBDB, for Osteichthyes
Environment
brackish,freshwater,terrestrialPBDB, for Tetrapoda

Time the record covers

At most 8.8 million years on record.

The one occurrence read is dated to somewhere between 298.9 Mya and 290.1 Mya, which is a dating window rather than a span.

Carboniferous — about 0 of 1 occurrencePermian — about 1 of 1 occurrencePermian299–299 Mya — about 0.0 occurrences299–298 Mya — about 0.0 occurrences298–298 Mya — about 0.0 occurrences298–298 Mya — about 0.0 occurrences298–297 Mya — about 0.0 occurrences297–297 Mya — about 0.0 occurrences297–297 Mya — about 0.0 occurrences297–296 Mya — about 0.0 occurrences296–296 Mya — about 0.0 occurrences296–296 Mya — about 0.0 occurrences296–295 Mya — about 0.0 occurrences295–295 Mya — about 0.0 occurrences295–295 Mya — about 0.0 occurrences295–295 Mya — about 0.0 occurrences295–294 Mya — about 0.0 occurrences294–294 Mya — about 0.0 occurrences294–294 Mya — about 0.0 occurrences294–293 Mya — about 0.0 occurrences293–293 Mya — about 0.0 occurrences293–293 Mya — about 0.0 occurrences293–292 Mya — about 0.0 occurrences292–292 Mya — about 0.0 occurrences292–292 Mya — about 0.0 occurrences292–291 Mya — about 0.0 occurrences291–291 Mya — about 0.0 occurrences291–291 Mya — about 0.0 occurrences291–290 Mya — about 0.0 occurrences290–290 Mya — about 0.0 occurrences299.4 Mya289.6 Mya

1 occurrence of Diadectomorpha on record, most of them in the Permian. 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

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

Cutler — 37.17°N, 109.85°W

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The named rock units Diadectomorpha has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Diadectomorpha and its relatives

Permian

Where Diadectomorpha and its relatives were recorded in the Permian.

Found in the same rock

278 taxa

The Paleobiology Database records 71 sites for Diadectomorpha, 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 reference

Each 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 doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.

Media and terms

Media content1

Picture of Diadectomorpha

Credit
Ghedoghedo
Licence
Public Domain
Commercial use
the licence allows it

No 3D scan of Diadectomorpha 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 itCotylosauria through timeFormations of the PermianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Watson 1917)