Mioplosus
Mioplosus is an extinct genus of lates perches that lived from the early to middle Eocene. Five species of the genus has been described, Mioplosus labracoides is found in the Green River Formation Lagerstätte.

Sanjay Acharya · CC BY-SA 3.0 · 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
- PercidaePBDB
- Diet
- carnivorePBDB, for Perciformes
- Life habit
- nektonicPBDB, for Perciformes
- Motility
- actively mobilePBDB, for Perciformes
- Environment
- freshwaterPBDB, for Percidae
Time the record covers
At most 4.9 million years on record.
Every occurrence read is dated to somewhere between 56 Mya and 51.1 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
3 occurrences of Mioplosus on record, most of them in the Eocene. 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- Eocene100%
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
1 formation
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The named rock units Mioplosus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Mioplosus and its relatives
EoceneWhere Mioplosus and its relatives were recorded in the Eocene.
Found in the same rock
11 taxa- Diplomystus3 sites
- Knightia3 sites
- Phareodus2 sites
- Priscachara sp.2 sites
- Aerugoamnis paulus1 site
- Amphiplaga1 site
- Dasyatis1 site
- Eohiodon1 site
- Notogoneus1 site
- Priscacara1 site
- Vadaravis brownae1 site
The Paleobiology Database records 3 sites for Mioplosus, and this reads all of them. The number is how many of those sites it was catalogued from too.
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
1 referenceEach 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 content2
Picture of Mioplosus
- Source
- Wikipedia/Commons
- Credit
- Sanjay Acharya
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Licence
- CC Attribution-NonCommercial
- Commercial use
- the licence does not allow it
Smithsonian Open Access and MorphoSource were 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, “Mioplosus”
- 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 itPercidae through timeFormations of the EoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Cope 1877