Urocordylidae

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- Sits inside
- NectrideaPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- brackish,freshwater,terrestrialPBDB, for Tetrapoda
Time the record covers
At least 30 million years on record.
The record covers at least 316.9 Mya to 286 Mya. No occurrence read is dated outside 318.7 Mya to 274.4 Mya.
18 occurrences of Urocordylidae on record, most of them in the Carboniferous. 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
18 occurrences- Carboniferous61%
- Permian39%
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
12 formations
- Kladno Formation3
- Wellington Formation · Sumner Group2
- Pottsville Formation1
- Lueders Formation · Wichita Group1
- Black Prince Limestone Formation1
- Upper Kittanning Coal Formation · Allegheny Group1
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The named rock units Urocordylidae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.
Urocordylidae and its relatives
CarboniferousWhere Urocordylidae and its relatives were recorded in the Carboniferous.
Found in the same rock
225 taxa- Sauropleura scalaris4 sites
- Amblypterus rohani3 sites
- Archegosaurus dyscriton3 sites
- Branchiosaurus3 sites
- Melanerpeton3 sites
- Acanthodes gracilis2 sites
- Actinopterygii2 sites
- Archaeothyris2 sites
- Bohemiacanthus carinatus2 sites
- Ctenerpeton remex2 sites
- Ctenodus2 sites
- Isodectes obtusus2 sites
- Microhaplolepis serrata2 sites
- Oestocephalus amphiuminum2 sites
- Paramblypterus2 sites
- Phlegethontia longissima2 sites
- Acanthodes1 site
- Acanthotriletes1 site
- Adamanterpeton ohioensis1 site
- Adelophthalmus mansfieldi1 site
- Adetognathus1 site
- Aeduella blainvillei1 site
- Alisporites1 site
- Amblypterus1 site
The Paleobiology Database records 10 sites for Urocordylidae, 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
16 references- On the fossil Amphibia from the Gas Coal of Nyrany and other deposits of Czechoslovakia3
- Research by the Museum of Eastern Bohemia in Hradec Králové on significant localities with Permian faunas in the Bohemian Massif – Part I – Krkonoše Piedmont Basin, Rudník member1
- Climatic and biotic changes around the Carboniferous/Permian boundary recorded in the continental basins of the Czech Republic1
- Handbuch der Palaoherpetologie / Encyclopedia of Paleoherpetology Teil 1 / Part 1 Lepospondyli: Microsauria, Nectridea, Lysorophia, Adelospondyli, Aistopoda, Acherontiscidae1
- Rachitomes, Lépospondyles et Reptiles due Stephanien (Carbonifere superieur) du basin de Montceau-les-Mines (Massif central, France). In: Quand le Massif Central etait sout l'equateur: un ecosysteme Carbonifere a Montceau-les-Mines1
- Perryella, a new temnospondylous amphibian from the Lower Permian of Oklahoma1
- New Pennsylvanian Lepospondyl Amphibians from the Swisshelm Mountains, Arizona1
- A urocordylid nectridean (Amphibia) from the Westphalian of Northumberland1
- Vertebrate Fossils from the Lueders Formation, Lower Permian of North-Central Texas.1
- Early Permian Vertebrates1
- Footprints from the coal measures of Alabama1
- On New Paleozoic Vertebrata from Illinois, Ohio and Pennsylvania1
Each of the 18 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. 4 further references are not listed. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1

Picture of Urocordylidae
- 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 Urocordylidae 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itNectridea through timeFormations of the CarboniferousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Lydekker 1889