Acanthomorphata

User:Haplochromis · CC BY-SA 3.0 · 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
- CtenosquamataPBDB
- Diet
- omnivorePBDB
- Life habit
- nektonicPBDB
- Motility
- actively mobilePBDB
Time the record covers
At least 86 million years on record.
The record covers at least 93.9 Mya to 7.246 Mya. No occurrence read is dated outside 113.2 Mya to 5.333 Mya.
120 occurrences of Acanthomorphata on record, most of them in the Late Cretaceous. 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
120 occurrencesThese 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
27 formations
- Hell Creek Formation · Montana Group26
- Fort Union Formation14
- Zig Zag Chalk Formation · Chalk Group8
- Lance Formation6
- Dinosaur Park Formation · Belly River Group5
- Milk River Formation5
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The named rock units Acanthomorphata has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 further formations hold fewer occurrences each and are not listed. 18 occurrences have no formation on record, which is common for older literature.
Acanthomorphata and its relatives
Late CretaceousWhere Acanthomorphata and its relatives were recorded in the Late Cretaceous.
Found in the same rock
1,132 taxa- Teleostei29 sites
- Hiodontidae18 sites
- Osteoglossomorpha18 sites
- Otophysa17 sites
- Coriops13 sites
- Estesesox13 sites
- Wilsonichthys12 sites
- Anura11 sites
- Estesesox foxi11 sites
- Lepisosteidae11 sites
- Amiidae10 sites
- Dromaeosauridae10 sites
- Notogoneus10 sites
- Opisthotriton kayi10 sites
- Paronychodon10 sites
- Belonostomus longirostris9 sites
- Euteleostei9 sites
- Scapherpeton tectum9 sites
- Ceratopsidae8 sites
- Ctenothrissa radians8 sites
- Cyclurus8 sites
- Richardoestesia8 sites
- Wilsonichthys aridinsulensis8 sites
- Albanerpetontidae7 sites
The Paleobiology Database records 75 sites for Acanthomorphata, 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
42 references- A systematic reappraisal and quantitative study of the nonmarine teleost fishes from the late Maastrichtian of the Western Interior of North America: evidence from vertebrate microfossil localities33
- Moderate extinctions and slow recovery of non-marine teleost fishes across the Cretaceous–Paleogene boundary, with a systematic appraisal of early Paleocene teleost fishes from Saskatchewan, Canada and Montana, USA18
- The fossil fishes of the English Chalk. Part II7
- Non-marine fishes of the late Santonian Milk River Formation of Alberta, Canada – evidence from vertebrate microfossil localities5
- The systematic composition of the Eocene actinopterygian fish fauna from Monte Bolca, northern Italy, as known to date4
- Teleost centra from uppermost Judith River Group (Dinosaur Park Formation, Campanian) of Alberta, Canada4
- Four new basal acanthomorph fishes from the Late Cretaceous of Morocco3
- Freshwater Osteichthyes from the Cenomanian to late Campanian of Grand Staircase-Escalante National Monument, Utah3
- Faunal assemblages from the upper Horseshoe Canyon Formation, an early Maastrichtian cool-climate assemblage from Alberta, with special reference to the Albertosaurus sarcophagus bonebed3
- The list of marine fishes from Cenozoic (Upper Paleocene-Middle Miocene) localities in Southern European Russia and adjacent countries3
- The English Chalk and London Clay: two remarkable British bony fish Lagerstatten2
- Diversity and paleoecology of actinopterygian fish from vertebrate microfossil localities of the Maastrichtian Hell Creek Formation of Montana2
Each of the 120 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. 30 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 Acanthomorphata
- Source
- Wikidata/Commons
- Credit
- User:Haplochromis
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itCtenosquamata through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Rosen 1973)