Cyclopyge
Searched as Cyclopyge marginata. The Paleobiology Database treats Cyclopyge as the accepted name.

Uncredited · via Wikidata/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
- CyclopygidaePBDB
- Diet
- microcarnivorePBDB, for Cyclopygidae
- Life habit
- nektonicPBDB, for Cyclopygidae
- Motility
- actively mobilePBDB, for Cyclopygidae
- Vision
- well-developedPBDB, for Cyclopygidae
- Environment
- marinePBDB, for Trilobita
Time the record covers
At most 7 million years on record.
Every occurrence read is dated to somewhere between 450.1 Mya and 443.1 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
10 occurrences of Cyclopyge on record, most of them in the Ordovician. 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
10 occurrences- Ordovician100%
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
4 formations
- Domusnovas Formation6
- Kraluv Dvur Formation2
- Rhiwlas Limestone Formation1
- Pyle Mountain Argillite Formation1
Loading coastlines…
The named rock units Cyclopyge has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Cyclopyge and its relatives
OrdovicianWhere Cyclopyge and its relatives were recorded in the Ordovician.
Found in the same rock
865 taxa- Dionide30 sites
- Ovalocephalus29 sites
- Nankinolithus28 sites
- Nileus28 sites
- Geragnostus26 sites
- Lonchodomas26 sites
- Illaenus24 sites
- Remopleurides20 sites
- Birmanites19 sites
- Ampyx18 sites
- Corrugatagnostus18 sites
- Paraphillipsinella18 sites
- Amphitryon16 sites
- Microparia16 sites
- Michelinoceras14 sites
- Telephina14 sites
- Trinodus14 sites
- Christiania12 sites
- Symphysurus12 sites
- Orthoceras11 sites
- Sinoceras11 sites
- Arthrorhachis tarda10 sites
- Calymenesun10 sites
- Phillipsinella10 sites
The Paleobiology Database records 116 sites for Cyclopyge, 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
5 references- Trilobites of the post-Sardic (Upper Ordovician) sequence of southern Sardinia. Part I5
- The biostratigraphy of the Ordovician of Bohemia2
- The only known cyclopygid–‘atheloptic’ trilobite fauna from North America: the upper Ordovician fauna of the Pyle Mountain Argillite and its palaeoenvironmental significance1
- Outline of the post-Sardic Ordovician sequence in south-westem Sardinia1
- The Ordovician trilobites of the Bala Area, Merioneth. Part IV1
Each of the 10 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 Cyclopyge
- Source
- Wikidata/Commons
- Credit
- nobody named on the record
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Cyclopyge 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.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itCyclopygidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Hawle and Corda 1847