Rhizodontida

User:DiBgd · CC BY-SA 4.0 · 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
- SarcopterygiiPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
Time the record covers
At least 67 million years on record.
The record covers at least 382.31 Mya to 315.2 Mya. No occurrence read is dated outside 419.62 Mya to 298.9 Mya.
53 occurrences of Rhizodontida 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
53 occurrences- Devonian19%
- Carboniferous81%
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
22 formations
- Snowy Plains Formation · Mansfield Group4
- Aztec Siltstone Formation3
- Pennine Lower Coal Measures Formation3
- Colsterdale Marine Beds Formation2
- Gilmerton Ironstone Formation · Lower Limestone Group2
- Heath Formation · Big Snowy Group2
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The named rock units Rhizodontida has been recovered from, largest first. Drawn where the rock is now, not where it formed. 21 occurrences have no formation on record, which is common for older literature.
Rhizodontida and its relatives
CarboniferousWhere Rhizodontida and its relatives were recorded in the Carboniferous.
Found in the same rock
293 taxa- Strepsodus sauroides12 sites
- Pleuracanthus laevissimus6 sites
- Rhadinichthys6 sites
- Ctenacanthidae5 sites
- Rhizodus hibberti5 sites
- Strepsodus5 sites
- Elonichthys4 sites
- Pleuracanthus cylindricus4 sites
- Pleuroplax rankinei4 sites
- Rhizodontiformes4 sites
- Acanthodes3 sites
- Ctenoptychius apicalis3 sites
- Diplodus tenuis3 sites
- Holurus parki3 sites
- Janassa bituminosa3 sites
- Listracanthus3 sites
- Rhizodontidae3 sites
- Rhizodopsis sauroides3 sites
- Rhizodus3 sites
- Strepheoschema fouldenensis3 sites
- ? Platysoma sp.2 sites
- Acanthodes wardi2 sites
- Acanthodii2 sites
- Aetheretmon valentiacum2 sites
The Paleobiology Database records 46 sites for Rhizodontida, 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
29 references- Catalogue of the Fossil Fishes in the British Museum (Natural History). Part II12
- Vertebrate correlation of the Upper Devonian and Lower Carboniferous on the East European Platform5
- A synopsis of the classification of the British Palaeozoic rocks, with a systematic description of the British Palaeozoic fossils.Fasciculus 3, Mollusca and Palaeozoic fishes4
- An ichnofossil assemblage from the Lower Carboniferous Snowy Plains Formation, Mansfield Basin, Australia2
- A new species of Barameda (Rhizodontida) and heterochrony in the rhizodontid pectoral fin2
- Fish diversity of the Bear Gulch Limestone, Namurian, Lower Carboniferous of Montana, USA2
- Crossopterygian fishes from the Devonian of Antarctica: systematics, relationships and biogeographic significance2
- Marine bands of Arnsbergian age (Namurian) in the south-eastern portion of the Askrigg Block, Yorkshire2
- Fish Remains from the North Wales Coalfield2
- New insights into Late Devonian vertebrates and associated fauna from the Cuche Formation (Floresta Massif, Colombia)1
- A fish and tetrapod fauna from Romer's Gap preserved in Scottish Tournaisian floodplain deposits1
- A Devonian tetrapod-like fish reveals substantial parallelism in stem tetrapod evolution1
Each of the 53 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. 17 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 Rhizodontida
- Source
- Wikidata/Commons
- Credit
- User:DiBgd
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Rhizodontida 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 itSarcopterygii through timeFormations of the CarboniferousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Andrews and Westoll 1970)