Cyrtograptus
Searched as Cyrtograptus cf. muchisoni bohemicus. The Paleobiology Database treats Cyrtograptus as the accepted name.
Cyrtograptus is an extinct genus of graptolites.

Bloopityboop · CC BY-SA 4.0 · via Wikipedia/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
- CyrtograptinaePBDB
- Diet
- suspension feederPBDB, for Graptoloidea
- Life habit
- planktonicPBDB, for Graptoloidea
- Motility
- passively mobilePBDB, for Graptoloidea
- Vision
- blindPBDB, for Graptolithina
Time the record covers
At most 24 million years on record.
The one occurrence read is dated to somewhere between 443.1 Mya and 419.62 Mya, which is a dating window rather than a span.
1 occurrence of Cyrtograptus 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
1 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.
Cyrtograptus and its relatives
SilurianWhere Cyrtograptus and its relatives were recorded in the Silurian.
Found in the same rock
291 taxa- Monograptus26 sites
- Monograptus priodon10 sites
- Pristiograptus dubius10 sites
- Monoclimacis7 sites
- Pristiograptus6 sites
- Cheirurus (Cheirurus) insignis5 sites
- Leonaspis5 sites
- Staurocephalus murchisoni5 sites
- Calymene4 sites
- Cyrtia4 sites
- Decoroproetus decorus4 sites
- Retiolites geinitzianus4 sites
- Stomatograptus4 sites
- Testograptus testis4 sites
- Bivalvia3 sites
- Conularia3 sites
- Crinoidea3 sites
- Dicranopeltis scabra3 sites
- Mezounia3 sites
- Niorhynx3 sites
- Planiscutellum3 sites
- Plectograptus3 sites
- Prototaxites3 sites
- Strophochonetes3 sites
The Paleobiology Database records 33 sites for Cyrtograptus, 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
1 referenceEach of the 1 occurrence 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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content1
Picture of Cyrtograptus
- Source
- Wikipedia/Commons
- Credit
- Bloopityboop
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
No 3D scan of Cyrtograptus 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.
The description on this site
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itCyrtograptinae through timeFormations of the SilurianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0.