Erieopterus
Erieopterus is a genus of prehistoric eurypterid found in Silurian to Devonian-aged marine and freshwater strata of North America. The genus contains three species from the Silurian to the Devonian. Erieopterus is the only genus in the family Erieopteridae, part of the Dolichopteroidea superfamily.

Jessica Utrup · CC0 · 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
- ErieopteridaePBDB
- Diet
- carnivorePBDB, for Eurypterida
- Life habit
- nektobenthicPBDB, for Eurypterida
- Motility
- actively mobilePBDB, for Eurypterida
- Vision
- well-developedPBDB, for Eurypterida
Time the record covers
At least 16 million years on record.
The record covers at least 426.7 Mya to 410.62 Mya. No occurrence read is dated outside 432.9 Mya to 393.47 Mya.
17 occurrences of Erieopterus 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
17 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
11 formations
- Manlius Formation · Helderberg Group3
- Kokomo Formation2
- Bear Rock Formation2
- Put-In-Bay Formation1
- Wabash Formation1
- Syracuse Formation1
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The named rock units Erieopterus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 2 occurrences have no formation on record, which is common for older literature.
Erieopterus and its relatives
SilurianWhere Erieopterus and its relatives were recorded in the Silurian.
Found in the same rock
132 taxa- Howellella6 sites
- Leperditia6 sites
- Carcinosoma4 sites
- Cephalopoda3 sites
- Drepanopterus3 sites
- Eurypterus tetragonophthalmus3 sites
- Lingula3 sites
- Pterygotus3 sites
- Spirorbis3 sites
- Whitfieldella3 sites
- Camarotoechia2 sites
- Carcinosoma newlini2 sites
- Erettopterus2 sites
- Eurypterus remipes2 sites
- Gastropoda2 sites
- Goniophora2 sites
- Medusaegraptus2 sites
- Mixopterus2 sites
- Onychopterella kokomoensis2 sites
- Orbiculoidea2 sites
- Schuchertella2 sites
- Stromatoporoidea2 sites
- Tentaculites2 sites
- <Stromatolites>1 site
The Paleobiology Database records 16 sites for Erieopterus, 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
7 references- Habitat of Llandoverian-Lochkovian eurypterids8
- Stratigraphy of Upper Silurian Cayugan Evaporites4
- On the Emsian (Lower Devonian) arthropods of the Rhenish Slate Mountains: 5. Rare and poorly known eurypterids from Willwerath, Germany1
- An Early Devonian (Emsian) acanthodian from the Bear Rock Formation, Anderson River, Northwest Territories, Canada1
- Early Devonian eurypterids from the Northwest Territories of Arctic Canada1
- Eurypterid horizons and the stratigraphy of Upper Silurian and Lower Devonian rocks of central-eastern New York State1
- Ontogeny of the Devonian Leperditiid Ostracode Herrmannina alta1
Each of the 17 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 content2
Picture of Erieopterus
- Source
- Wikipedia/Commons
- Credit
- Jessica Utrup
- Licence
- CC0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Credit
- Tavernier Amaury
- Licence
- CC Attribution-NonCommercial-ShareAlike
- 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, “Erieopterus”
- 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 itErieopteridae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.