Cyrtia exporrectus

via GBIF · CC BY-NC 4.0 · via GBIF. 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
- CyrtiaPBDB
- Diet
- suspension feederPBDB, for Spiriferida
- Life habit
- epifaunalPBDB, for Spiriferida
- Motility
- stationaryPBDB, for Spiriferida
- Vision
- blindPBDB, for Rhynchonellata
- Environment
- marinePBDB, for Lophophorata
Time the record covers
At least 6.8 million years on record.
The record covers at least 433.5 Mya to 426.7 Mya. No occurrence read is dated outside 443.1 Mya to 422.7 Mya.
65 occurrences of Cyrtia exporrectus 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
65 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
37 formations
- Paprieniai Formation8
- Riga Formation7
- Scotch Grove Formation7
- Slite Beds Formation3
- Geluva Formation3
- Much Wenlock Formation2
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The named rock units Cyrtia exporrectus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 13 further formations hold fewer occurrences each and are not listed. 4 occurrences have no formation on record, which is common for older literature.
Cyrtia exporrectus and its relatives
SilurianWhere Cyrtia exporrectus and its relatives were recorded in the Silurian.
Found in the same rock
593 taxa- Atrypa reticularis46 sites
- Eospirifer radiatus32 sites
- Isorthis27 sites
- Dicoelosia biloba25 sites
- Lissatrypa obovata25 sites
- Skenidioides lewisii25 sites
- Dalejina hybrida24 sites
- Howellella elegans24 sites
- Leangella (Leangella) segmentum23 sites
- Clorinda21 sites
- Nucleospira pisum20 sites
- Resserella canalis20 sites
- Eoplectodonta duvalii19 sites
- Jonesea grayi19 sites
- Leptaena rhomboidalis16 sites
- Protochonetes minimus16 sites
- Gypidula galeata15 sites
- Lingulidae15 sites
- Bryozoa14 sites
- Craniops14 sites
- Leptaena holcrofti14 sites
- Dolerorthis13 sites
- Isorthis (Tyersella) amplificata13 sites
- Microsphaeridiorhynchus nucula13 sites
The Paleobiology Database records 63 sites for Cyrtia exporrectus, 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
28 references- A review of Silurian brachiopods from Gotland9
- Brachiopod communities of the Lithuanian Silurian6
- Silurian Brachiopod communities in the section of the Pilviškiai - 141 borehole5
- Brachiopod and Conodont Distribution at the Wenlock - Ludlow boundary of Lithuania5
- Caradocian-Gedinnian echinoderm associations of Central and Eastern North America4
- Silurian and Early Devonian benthic communities of the Ural-Tien Shan region3
- Silurian brachiopod and related benthic communities from carbonate platform and mound environments of Iowa and surrounding areas3
- Experience of Brachiopod community separation from the Silurian of Lithuania3
- The Silurian rocks of the Tortworth Inlier, Gloucestershire3
- Silurian Reefs of Gotland3
- Silurian communities of the Oslo Region, Norway2
- Silurian Brachiopod communities in the section of the Vilkaviskis-129 boring2
Each of the 65 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. 16 further references are not listed. 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 Cyrtia exporrectus
- Source
- GBIF
- Credit
- via GBIF
- Licence
- CC BY-NC 4.0
- Commercial use
- the licence does not allow it
No 3D scan was found. Smithsonian Open Access, MorphoSource and Sketchfab were all searched.
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itCyrtia through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Wahlenberg 1818)