Hiodontidae

NOAA · Public Domain · 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
- HiodontiformesPBDB
- Motility
- actively mobilePBDB, for Osteichthyes
Time the record covers
At least 132 million years on record.
The record covers at least 132.6 Mya to 11.7 ka. No occurrence read is dated outside 143.1 Mya to 0 Mya.
36 occurrences of Hiodontidae on record, most of them in the Late Cretaceous. 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
36 occurrences- Early Cretaceous3%
- Late Cretaceous64%
- Paleocene3%
- Eocene27%
- Oligoceneunder 1%
- Holocene3%
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
15 formations
- Hell Creek Formation · Montana Group9
- Dinosaur Park Formation · Belly River Group5
- Milk River Formation4
- Green River Formation3
- Klondike Mountain Formation2
- Mengyin Formation1
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The named rock units Hiodontidae 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.
Hiodontidae and its relatives
Late CretaceousWhere Hiodontidae and its relatives were recorded in the Late Cretaceous.
Found in the same rock
558 taxa- Teleostei19 sites
- Acanthomorphata18 sites
- Coriops11 sites
- Otophysa11 sites
- Osteoglossomorpha10 sites
- Wilsonichthys10 sites
- Belonostomus longirostris9 sites
- Estesesox9 sites
- Estesesox foxi9 sites
- Paronychodon9 sites
- Amiidae8 sites
- Anura8 sites
- Chelydridae8 sites
- Dromaeosauridae8 sites
- Euteleostei8 sites
- Lepisosteidae8 sites
- Opisthotriton kayi8 sites
- Scapherpeton tectum8 sites
- Wilsonichthys aridinsulensis8 sites
- Albanerpetontidae7 sites
- Ceratopsidae7 sites
- Albanerpeton nexuosus6 sites
- Baenidae6 sites
- Esocoidea6 sites
The Paleobiology Database records 34 sites for Hiodontidae, 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
17 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 localities10
- Non-marine fishes of the late Santonian Milk River Formation of Alberta, Canada – evidence from vertebrate microfossil localities4
- Eohiodon woodruffi n. sp. (Teleostei, Hiodontidae), from the middle Eocene Klondike Mountain Formation near Republic, Washington4
- Teleost centra from uppermost Judith River Group (Dinosaur Park Formation, Campanian) of Alberta, Canada3
- Freshwater Osteichthyes from the Cenomanian to late Campanian of Grand Staircase-Escalante National Monument, Utah2
- Paleontology of the Green River Formation, with a review of the fish fauna2
- Fish & Reptiles of the Rebecca’s Hollow Site, Williams Fork Formation, Late Cretaceous (Edmontonian), Colorado & ‘Between The Dinosaurs’ Toes’: Approaches to Exhibiting Microvertebrate Fossils in Museum Displays (With Emphasis on the Cretaceous Period)1
- Paleoecology and sedimentology of a vertebrate microfossil assemblage from the easternmost Dinosaur Park Formation (Late Cretaceous, Upper Campanian,) Saskatchewan, Canada: reconstructing diversity in a coastal ecosystem1
- Diversity and paleoecology of actinopterygian fish from vertebrate microfossil localities of the Maastrichtian Hell Creek Formation of Montana1
- After Hopewell in Southern Québec1
- The structure of Late Cretaceous (late Campanian) nonmarine aquatic communities: a guild analysis of two vertebrate microfossil localities in Dinosaur Provincial Park, Alberta, Canada1
- A comparison of fish community structure along several paleoenvironments of Eocene Fossil Lake, Wyoming: a preliminary report1
Each of the 36 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. 5 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 Hiodontidae
- Source
- Wikidata/Commons
- Credit
- NOAA
- Licence
- Public Domain
- Commercial use
- the licence allows it
No 3D scan of Hiodontidae 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 itHiodontiformes through timeFormations of the Late CretaceousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Cuvier and Valenciennes 1846