Hypostomus
Hypostomus is a genus of freshwater ray-finned fishes belonging to the family Loricariidae, the suckermouth armored catfishes, and the subfamily Hypostominae, the suckermouth catfishes. They are native to tropical and subtropical South America. H. plecostomus is the popular freshwater aquarium fish formerly known as Plecostomus plecostomus. The taxonomic structure of the Loricariidae is still being expanded by scientists. Hypostomus is a highly species-rich and widely distributed catfish genus.

Raphaël Covain, Natural History Museum of Geneva · CC BY-SA 4.0 · 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
- LoricariidaePBDB
- Diet
- carnivorePBDB, for Siluriformes
- Life habit
- nektobenthicPBDB, for Siluriformes
- Motility
- actively mobilePBDB, for Siluriformes
- Environment
- freshwaterPBDB, for Siluriformes
Time the record covers
At least 10 million years on record.
The record covers at least 11 Mya to 129 ka. No occurrence read is dated outside 13.8 Mya to 11.7 ka.
3 occurrences of Hypostomus on record, most of them in the Pleistocene. 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
3 occurrences- Miocene33%
- Pleistocene67%
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
2 formations
- Villavieja Formation · Honda Group1
- Luján Formation1
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The named rock units Hypostomus 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.
Hypostomus and its relatives
PleistoceneWhere Hypostomus and its relatives were recorded in the Pleistocene.
Found in the same rock
57 taxa- Akodon cursor1 site
- Artibeus jamaicensis1 site
- Brachyplatystoma1 site
- Caiman1 site
- Calomys callosus1 site
- Catonyx cuvieri1 site
- Ceratophrynidae1 site
- Chelidae1 site
- Chelonoidis1 site
- Colombophis portai1 site
- Corydoras1 site
- Cuniculus1 site
- Cuniculus paca1 site
- Dasypodinae1 site
- Dasypus1 site
- Didelphis albiventris1 site
- Equus caballus1 site
- Eremotherium laurillardi1 site
- Galea spixii1 site
- Glyptodon clavipes1 site
- Glyptodon euphractus1 site
- Hippidion1 site
- Holochilus brasiliensis1 site
- Huilatherium pluripicatum1 site
The Paleobiology Database records 3 sites for Hypostomus, 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
3 references- [Continental ichthyofauna and herpetofauna from the Upper Pleistocene of the locality of Salto, Buenos Aires Province, Argentine]1
- Freshwater Fishes and their paleobiotic implications1
- La Faune Pleistocene du Piaui (Nordeste du Bresil): Implications Paleoecologiques et Biochronologiques1
Each of the 3 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content3
Picture of Hypostomus
- Source
- Wikipedia/Commons
- Credit
- Raphaël Covain, Natural History Museum of Geneva
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Gymnorhamphichthys hypostomus NULL · UF:Fish:33616
Smithsonian Open Access was not reached for this taxon, so this list is what the others held rather than everything there is.
The description on this site
- Source
- Wikipedia, “Hypostomus”
- 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 itLoricariidae through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Lundberg 1997