Chrysichthys
Chrysichthys is a genus of claroteid catfishes native to Africa. Two fossil species are known. Chrysichthys macrotis, Van Neer, 1994, is known from the Miocene-Pliocene of the Albertine Rift in Uganda and Chrysichthys mahengeensis, Murray & Budney, 2003, is known from the Eocene of the Mahenge Formation, Tanzania.

Boulenger, George Albert, 1858-1937 · 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
- ClaroteidaePBDB
- Diet
- carnivorePBDB, for Siluriformes
- Life habit
- nektobenthicPBDB, for Siluriformes
- Motility
- actively mobilePBDB, for Siluriformes
- Environment
- freshwaterPBDB, for Siluriformes
Time the record covers
At least 37 million years on record.
The record covers at least 41.03 Mya to 3.6 Mya. No occurrence read is dated outside 48.07 Mya to 11.7 ka.
46 occurrences of Chrysichthys 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
46 occurrences- Eocene7%
- Miocene60%
- Pliocene32%
- Pleistocene2%
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
7 formations
- Nkondo Formation · Albertine Group28
- Warwire Formation · Albertine Group9
- Nyaburogo Formation · Albertine Group3
- Ameki Formation · Bende-Ameki Group2
- Kaiso Village Formation · Albertine Group1
- Nyakabingo Formation · Albertine Group1
Loading coastlines…
The named rock units Chrysichthys has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Chrysichthys and its relatives
MioceneWhere Chrysichthys and its relatives were recorded in the Miocene.
Found in the same rock
208 taxa- Lates niloticus28 sites
- Bunocharax sp.22 sites
- Synodontis19 sites
- Hydrocynus17 sites
- Suidae16 sites
- Lanistes15 sites
- Clariidae9 sites
- Characidae8 sites
- Cichlidae7 sites
- Gymnarchus7 sites
- Sus waylandi7 sites
- Combretum6 sites
- Distichodus6 sites
- Parachanna6 sites
- Acacia5 sites
- Brachystegia sp.5 sites
- Eurygnathohippus turkanense5 sites
- Hipparion5 sites
- Loxodonta5 sites
- Stegodon kaisensis5 sites
- Alestes sp.4 sites
- Bagrus4 sites
- Hyperopisus sp.4 sites
- Nkondobagrus longirostris4 sites
The Paleobiology Database records 37 sites for Chrysichthys, 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
19 references- Fish remains from Late Pleistocene and Holocene archaeological sites near Khashm el Girba,Sudan10
- Palaeovegetation (fossil plants) of the Albertine rift valley5
- Hippopotamidae,Mammalia,Artiodactyla from the Western Rift,Lake Albert Basin,Uganda;preliminary study5
- Fresh water chelonians from the western rift, Uganda3
- Equidae of the Albertine rift valley,Uganda3
- Palaeobiology of the Albertine rift valley,Uganda-Zaire3
- Fossil proboscideans,Mammalia, from the Western Rift,Uganda3
- Evolution of bovid diversity in the Plio-Pleistocene of Africa2
- Ostracods from Nkondo Formation,upper Miocene,lake Albert Basin,Uganda2
- A fish assemblage from an early Miocene horizon from Jabal Zaltan, Libya1
- A new pipine frog from an Eocene crater lake in north-central Tanzania1
- Scale invariance and hydric behaviour of soils and clays1
Each of the 46 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. 7 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 Chrysichthys
- Source
- Wikipedia/Commons
- Credit
- Boulenger, George Albert, 1858-1937
- Licence
- Public Domain
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Credit
- AUM Fish Collection
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Chrysichthys duttoni · AUM:AUM:51632
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 itClaroteidae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Bleeker 1858