Holosteus
Holosteus is a genus of prehistoric barracudina known from the Eocene of Europe. It contains a single species, H. esocinus from the Early Eocene of Italy. Indeterminate specimens are also known from the earlier Eocene-aged Fur Formation of Denmark.

Ghedoghedo · 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
- HolosteinaePBDB
- Diet
- carnivorePBDB, for Aulopiformes
- Life habit
- nektonicPBDB, for Aulopiformes
- Motility
- actively mobilePBDB, for Aulopiformes
Time the record covers
At least 14 million years on record.
The record covers at least 48.07 Mya to 33.9 Mya. No occurrence read is dated outside 56 Mya to 27.3 Mya.
2 occurrences of Holosteus on record, most of them in the Eocene. 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
2 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
1 formation
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The named rock units Holosteus 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.
Holosteus and its relatives
EoceneWhere Holosteus and its relatives were recorded in the Eocene.
Found in the same rock
279 taxa- Syngnathidae2 sites
- "Gentonia" sp.1 site
- "Maffeia" sp.1 site
- Abdobalistum thyrsus1 site
- Abromasta microdon1 site
- Acanthonemus subaureus1 site
- Acanthopygaeus agassizi1 site
- Acanthuroides massalongoi1 site
- Acropoma lepidotum1 site
- Aeoliscoides longirostris1 site
- Alopiopsis plejodon1 site
- Ammodytidae1 site
- Amphistium paradoxum1 site
- Anenchelum1 site
- Anguilloides branchiostegalis1 site
- Anotophysa1 site
- Apogonidae1 site
- Apogoniscus pauciradiatus1 site
- Archaephippus asper1 site
- Aspesiganus margaritae1 site
- Aspesiperca ruffoi1 site
- Atherina macrocephala1 site
- Aulorhamphus bolcensis1 site
- Aulorhamphus capellinii1 site
The Paleobiology Database records 2 sites for Holosteus, 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
2 references- Synopsis of fossil fish fauna from the Hermanowa locality (Rupelian; Central Paratethys; Poland): current state of knowledge1
- The systematic composition of the Eocene actinopterygian fish fauna from Monte Bolca, northern Italy, as known to date1
Each of the 2 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. 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 Holosteus
- Source
- Wikipedia/Commons
- Credit
- Ghedoghedo
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Holosteus was found in MorphoSource and Sketchfab.
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, “Holosteus”
- 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 itHolosteinae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Agassiz 1835