Cyclus
Ghedoghedo · CC BY-SA 3.0 · 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
- CyclidaePBDB
- Life habit
- epifaunalPBDB, for Cyclidae
- Motility
- actively mobilePBDB, for Cyclidae
- Vision
- limitedPBDB, for Cyclidae
Time the record covers
At least 88 million years on record.
The record covers at least 330.3 Mya to 241.464 Mya. No occurrence read is dated outside 358.86 Mya to 239.48 Mya.
8 occurrences of Cyclus on record, most of them in the Carboniferous. 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
8 occurrences- Carboniferous75%
- Permian13%
- Middle Triassic13%
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
- Pottawatomie Formation · Kansas City Group3
- Pennine Lower Coal Measures Formation1
- Rottweil Formation1
- Carbondale Formation · Francis Creek Shale Group1
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The named rock units Cyclus 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.
Cyclus and its relatives
CarboniferousWhere Cyclus and its relatives were recorded in the Carboniferous.
Found in the same rock
163 taxa- ? Platysoma sp.1 site
- Acanthopecten carboniferous1 site
- Acanthopecten josephinae1 site
- Allorisma costatum1 site
- Allorisma granosum1 site
- Allorisma subcuneatam1 site
- Ameura missouriensis1 site
- Anglopterum magnificum1 site
- Annuliconcha interlineata1 site
- Anthracomartus1 site
- Apionicon apioides1 site
- Archaeocidaris ? triserrata1 site
- Avicula sulcata1 site
- Aviculopecten mccoyi1 site
- Aviculopecten occidentalis1 site
- Axophyllum rude1 site
- Bandringa rayi1 site
- Baylea salomonensis1 site
- Beecheria bovidens1 site
- Belinurus trilobitoides1 site
- Bitaunioceras zonatum1 site
- Calamites1 site
- Camptophyllia eltringhami1 site
- Carabicyclus1 site
The Paleobiology Database records 6 sites for Cyclus, 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
6 references- Some new American species of Cyclus from the Coal Measures3
- Revision of Cyclida (Pancrustacea, Multicrustacea), with five new genera1
- Soft-bodied fossils from the roof shales of the Wigan Four Foot coal seem, Westhoughton, Lancashire, UK1
- Mazon Creek Cycloidea1
- I Crostacei dei Calcari con Fusulina della Valle del Fiume Sosio nella Provincia di Palermo in Sicilia1
- Halicyne und Litogaster, zwei Crustaceengenera aus dem Muschelkalke Würtemberg's1
Each of the 8 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 content3
Picture of Cyclus
- Source
- Wikidata/Commons
- Credit
- Ghedoghedo
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
Laser scan
- Source
- MorphoSource
- Licence
- In Copyright
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Cyclus americanus · TMNH:00800
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 itCyclidae through timeFormations of the CarboniferousThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. de Koninck 1841