Ictalurus
Ictalurus is a genus of North American freshwater catfishes. It includes the well-known channel catfish and blue catfish.

Duane Raver · Public Domain · 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- Sits inside
- IctaluridaePBDB
- Diet
- carnivorePBDB, for Siluriformes
- Life habit
- nektobenthicPBDB, for Siluriformes
- Motility
- actively mobilePBDB, for Siluriformes
- Environment
- freshwaterPBDB, for Siluriformes
Time the record covers
At least 23 million years on record.
The record covers at least 23.1 Mya to 11.7 ka. No occurrence read is dated outside 24.7 Mya to 0 Mya.
39 occurrences of Ictalurus 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
39 occurrences- Oligocene3%
- Miocene51%
- Pliocene5%
- Pleistocene31%
- Holocene10%
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
- Valentine Formation · Ogallala Group8
- Ogallala Formation3
- Kingsdown Formation2
- Goliad Formation2
- Fleming Formation1
- Tamiami Formation1
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The named rock units Ictalurus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 16 occurrences have no formation on record, which is common for older literature.
Ictalurus and its relatives
MioceneWhere Ictalurus and its relatives were recorded in the Miocene.
Found in the same rock
795 taxa- Lepisosteus17 sites
- Rana10 sites
- Rana pipiens10 sites
- Emydidae9 sites
- Odocoileus virginianus9 sites
- Alligator mississippiensis7 sites
- Amia calva7 sites
- Cupidinimus nebraskensis7 sites
- Lepomis7 sites
- Amia6 sites
- Bufo6 sites
- Equus6 sites
- Eumeces6 sites
- Geochelone6 sites
- Metechinus amplior6 sites
- Thamnophis6 sites
- Trionychidae6 sites
- Anserinae5 sites
- Aplodinotus grunniens5 sites
- Castor canadensis5 sites
- Copemys longidens5 sites
- Domninoides valentinensis5 sites
- Emydinae5 sites
- Geochelone (Hesperotestudo) orthopygia5 sites
The Paleobiology Database records 33 sites for Ictalurus, 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
30 references- Vertebrate paleontology of the proposed Norden Reservoir Area, Brown, Cherry and Keya Paha counties, Nebraska3
- The Hottell Ranch rhino quarries (basal Ogallala: medial Barstovian), Banner County, Nebraska. Part I: Geologic setting, faunal lists, lower vertebrates3
- The Lapara Creek Fauna: Early Clarendonian of south Texas, USA2
- After Hopewell in Southern Québec2
- Geology and paleontology of a late Pleistocene basin in southwest kansas2
- Systematics and faunal analysis of a Lower Pliocene vertebrate assemblage from Trego County, Kansas2
- Lower vertebrates from the Valentine Formation of Nebraska2
- Biostratigraphy and biochronology of early Arikareean through late Hemingfordian small mammal faunas from the Nebraska Panhandle and adjacent areas1
- The fossil fishes from Pliocene localities near Tula de Allende, Hidalgo, Mexico1
- Lower vertebrates from an Arikareean (earliest Miocene) fauna near the Toledo Bend Dam, Newton County, Texas1
- Sigmodont rodents (Mammalia; Muroidea; Sigmodontinae) from the Pliocene (early Blancan) Verde Formation, Arizona1
- Late Pliocene (late Blancan) vertebrates from the St. Petersburg Times site, Pinellas County, Florida, with a brief review of Florida Blancan faunas1
Each of the 39 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. 18 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 content2
Picture of Ictalurus
- Source
- Wikipedia/Commons
- Credit
- Duane Raver
- Licence
- Public Domain
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Ictalurus punctatus · TCWC:Ichthyology:16900.18
The description on this site
- Source
- Wikipedia, “Ictalurus”
- 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 itIctaluridae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Rafinesque 1820