Kiaeropterus
Kiaeropterus is a genus of prehistoric eurypterid classified as part of the Brachyopterellidae family. Two species, both from the Silurian period, are known; K. cyclophthalmus from Scotland and K. ruedemanni from Norway.

Ichthyovenator · 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
- RhenopteridaePBDB
- Diet
- carnivorePBDB, for Eurypterida
- Life habit
- nektobenthicPBDB, for Eurypterida
- Motility
- actively mobilePBDB, for Eurypterida
- Vision
- well-developedPBDB, for Eurypterida
Time the record covers
At most 24 million years on record.
Every occurrence read is dated to somewhere between 443.1 Mya and 419.62 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
4 occurrences of Kiaeropterus on record, most of them in the Silurian. 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
4 occurrences- Silurian100%
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 Kiaeropterus 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.
Kiaeropterus and its relatives
SilurianWhere Kiaeropterus and its relatives were recorded in the Silurian.
Found in the same rock
10 taxa- Arthrophycus3 sites
- Erettopterus globiceps3 sites
- Hardieopterus3 sites
- Hughmilleria3 sites
- Parahughmilleria3 sites
- Ctenopterus2 sites
- Nanahughmilleria2 sites
- Rhinocarcinosoma2 sites
- Ruedemannipterus2 sites
- Vernonaspis2 sites
The Paleobiology Database records 3 sites for Kiaeropterus, 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 4 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 content1
Picture of Kiaeropterus
- Source
- Wikipedia/Commons
- Credit
- Ichthyovenator
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Kiaeropterus was found in Sketchfab.
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
- 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 itRhenopteridae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Waterston 1979