Ceratodontiformes
Ceratodontiformes is the only extant order of lungfish, containing the families Neoceratodontidae, Lepidosirenidae, and Protopteridae as well as many other extinct groups. Members of this group are the only lungfish known to have survived the Permian-Triassic extinction event. Although lungfish originated in marine environments, the Ceratodontiformes have been an exclusively freshwater group since the Carboniferous. This order was formerly considered the suborder Ceratodontoidei.

Vassil · CC0 · 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- Also called
- Australian lungfishPBDB
- Sits inside
- DipnoiPBDB
- Diet
- carnivorePBDB
- Life habit
- nektobenthicPBDB
- Motility
- actively mobilePBDB
- Environment
- lagoonal,marine,brackish,freshwaterPBDB, for Dipnoi
Time the record covers
At least 143 million years on record.
The record covers at least 143.1 Mya to 11.7 ka. No occurrence read is dated outside 161.5 Mya to 0 Mya.
108 occurrences of Ceratodontiformes on record, most of them in the Miocene. The Paleobiology Database records this as a living group. 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
108 occurrences- Late Jurassic2%
- Late Cretaceous10%
- Paleocene1%
- Eocene11%
- Oligocene7%
- Miocene36%
- Pliocene13%
- Pleistocene18%
- Holoceneunder 1%
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
40 formations
- Koobi Fora Formation · Omo Group18
- Villavieja Formation · Honda Group10
- La Victoria Formation · Honda Group10
- Pozo Formation7
- Wembere-Manonga Formation5
- Wadi Milk Formation3
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The named rock units Ceratodontiformes has been recovered from, largest first. Drawn where the rock is now, not where it formed. 16 further formations hold fewer occurrences each and are not listed. 13 occurrences have no formation on record, which is common for older literature.
Ceratodontiformes and its relatives
MioceneWhere Ceratodontiformes and its relatives were recorded in the Miocene.
Found in the same rock
923 taxa- Protopterus57 sites
- Clarias29 sites
- Polypterus28 sites
- Lates23 sites
- Crocodylus22 sites
- Lepidosiren paradoxa21 sites
- Euthecodon brumpti20 sites
- Trionyx20 sites
- Geochelone19 sites
- Synodontis19 sites
- Crocodylus niloticus18 sites
- Siluriformes18 sites
- Hydrocynus16 sites
- Gymnarchus13 sites
- Cichlidae12 sites
- Lates niloticus12 sites
- Theropithecus oswaldi11 sites
- Barbus10 sites
- Characiformes10 sites
- Mammalia10 sites
- Bagrus9 sites
- Cercopithecidae9 sites
- Bovidae8 sites
- Clariidae8 sites
The Paleobiology Database records 102 sites for Ceratodontiformes, 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
55 references- Freshwater Fishes and their paleobiotic implications18
- Koobi Fora Research Project The Fossil Ungulates: Proboscidea, Perissodactyla, Suidae9
- Biotic community and landscape changes around the Eocene–Oligocene transition at Shapaja, Peruvian Amazonia: Regional or global drivers?7
- Extinct large Colobines from the Plio-Pleistocene of Africa5
- Lothagam: the dawn of humanity in eastern Africa4
- Intoduction: Paleontological and Geological Research in the Manonga Valley, Tanzania4
- A Fish Assemblage from the Middle Eocene from Libya (Dur At-Talah) and the Earliest Record of Modern African Fish Genera3
- Late Pleistocene hunter-gatherers at Ishango (eastern Zaire): the faunal evidence3
- Restos de Lepidosirenidae (Osteichthyes, Dipnoi) del Grupo Honda (Mioceno Tardío) de Colombia. Sus denotaciones paleoambientales3
- Oxygen and carbon isotope compositions of middle Cretaceous vertebrates from North Africa and Brazil: Ecological and environmental significance2
- Age and stratigraphic reassessment of the fossil-bearing Laguna Umayo red mudstone unit, SE Peru, from regional stratigraphy, fossil record, and paleomagnetism2
- A new species of Protopterus and a revision of Ceratodus humei (Dipnoi: Ceratodontiformes) from the Late Cretaceous Mut Formation of eastern Dakhleh Oasis, Western Desert of Egypt2
Each of the 108 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. 43 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 Ceratodontiformes
- Source
- Wikipedia/Commons
- Credit
- Vassil
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Ceratodontiformes was found in Smithsonian Open Access and Sketchfab.
MorphoSource 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 itDipnoi through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Berg 1940