Cheirurus niagarensis
via iDigBio · CC0 · via iDigBio. 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
- CheirurusPBDB
- Diet
- carnivorePBDB, for Cheiruridae
- Life habit
- low-level epifaunalPBDB, for Trilobita
- Motility
- fast-movingPBDB, for Trilobita
- Vision
- well-developedPBDB, for Cheirurus
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 21 million years on record.
Every occurrence read is dated to somewhere between 443.1 Mya and 422.7 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
12 occurrences of Cheirurus niagarensis 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
12 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
6 formations
- Racine Formation4
- Racine Dolomite Formation4
- Sugar Run Dolomite Formation1
- Wayne Formation1
- Rochester Formation · Clinton Group1
- Herkimer Formation · Clinton Group1
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The named rock units Cheirurus niagarensis has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Cheirurus niagarensis and its relatives
SilurianWhere Cheirurus niagarensis and its relatives were recorded in the Silurian.
Found in the same rock
253 taxa- Dalmanites9 sites
- Bumastus8 sites
- Sphaerexochus romingeri7 sites
- Arctinurus6 sites
- Eospirifer radiatus6 sites
- Eucalyptocrinites6 sites
- Lecanocrinus6 sites
- Anastrophia5 sites
- Brachyprion (Protomegastrophia) profunda5 sites
- Bryozoa5 sites
- Caryocrinites5 sites
- Ceratocephala goniata5 sites
- Dalejina5 sites
- Dawsonoceras5 sites
- Dicranopeltis5 sites
- Encrinurus5 sites
- Eophacops5 sites
- Illaenoides5 sites
- Lyriocrinus5 sites
- Meristina5 sites
- Rugosa5 sites
- Stegerhynchus5 sites
- <Calymenid>4 sites
- <Favositid>4 sites
The Paleobiology Database records 12 sites for Cheirurus niagarensis, 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
4 references- Silurian trilobite associations in North America5
- The Silurian (Wenlockian) reef fauna of Southeastern Wisconsin4
- The Clinton of Western and Central New York2
- Caradocian-Gedinnian echinoderm associations of Central and Eastern North America1
Each of the 12 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 Cheirurus niagarensis
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Cheirurus niagarensis 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itCheirurus through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Hall 1868)