Cyclospira bisulcata

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
- CyclospiraPBDB
- Diet
- suspension feederPBDB, for Atrypida
- Life habit
- epifaunalPBDB, for Atrypida
- Motility
- stationaryPBDB, for Atrypida
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At most 7.7 million years on record.
Every occurrence read is dated to somewhere between 457.3 Mya and 449.6 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
11 occurrences of Cyclospira bisulcata 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
11 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
5 formations
- Dunleith Formation · Galena Group5
- Wise Lake Formation · Galena Group2
- Lindsay Formation · Simcoe Group2
- Prosser Limestone Formation1
- Galets Formation1
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The named rock units Cyclospira bisulcata has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Cyclospira bisulcata and its relatives
OrdovicianWhere Cyclospira bisulcata and its relatives were recorded in the Ordovician.
Found in the same rock
124 taxa- Glyptorthis bellarugosa10 sites
- Isotelus gigas10 sites
- Rafinesquina deltoidea10 sites
- Ceraurus pleurexanthemus9 sites
- Hesperorthis tricenaria9 sites
- Parastrophina9 sites
- Paucicrura rogata9 sites
- Sowerbyella minnesotensis9 sites
- Anazyga recurvirostra8 sites
- Dinorthis meedsi8 sites
- Erratencrinurus vigilans8 sites
- Hiscobeccus capax8 sites
- Pseudolingula iowensis8 sites
- Strophomena trilobata8 sites
- Zygospira uphami8 sites
- Illaenus7 sites
- Orbiculoidea7 sites
- Lingulasma6 sites
- Palaeoglossa6 sites
- Bumastus orbicaudatus4 sites
- Flexicalymene (Flexicalymene) senaria4 sites
- Rhynchotrema3 sites
- Strophomena billingsi3 sites
- Thaleops laurentiana3 sites
The Paleobiology Database records 11 sites for Cyclospira bisulcata, 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- Biostratigraphy of the Middle and Late Ordovician cephalopods of the Upper Mississippi Valley area6
- Brachiopods and trilobites of the Sardeson Beds in the Twin Cities2
- Palaeozoic geology of the Lake Simcoe Area, Ontario2
- Stratigraphy of the Ordovician of the Lac Saint-Jean and Chicoutimi outliers, Quebec1
Each of the 11 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 Cyclospira bisulcata
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Cyclospira bisulcata 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 itCyclospira through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Emmons 1842)