Dicellograptus
Searched as Leptograptus flaccidus macer. The Paleobiology Database treats Dicellograptus as the accepted name.

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
- DicranograptidaePBDB
- 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 8.2 million years on record.
Every occurrence read is dated to somewhere between 451.3 Mya and 443.1 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Dicellograptus 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
2 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
2 formations
- Phi Kappa Formation · Valmy Group1
- Lower Hartfell Shales Formation1
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The named rock units Dicellograptus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Dicellograptus and its relatives
OrdovicianWhere Dicellograptus and its relatives were recorded in the Ordovician.
Found in the same rock
946 taxa- Climacograptus122 sites
- Orthograptus76 sites
- Glyptograptus63 sites
- Diplograptus46 sites
- Dicranograptus42 sites
- Amplexograptus35 sites
- Glossograptus31 sites
- Didymograptus27 sites
- Nemagraptus25 sites
- Pseudoclimacograptus24 sites
- Remopleurides23 sites
- Lonchodomas16 sites
- Lasiograptus15 sites
- Reteograptus14 sites
- Cryptograptus13 sites
- Hustedograptus teretiusculus11 sites
- Reteograptus geinitzianus11 sites
- Sericoidea11 sites
- Trinodus11 sites
- Yinograptus11 sites
- Ampyx10 sites
- Illaenus10 sites
- Nemagraptus gracilis10 sites
- Orbiculoidea10 sites
The Paleobiology Database records 201 sites for Dicellograptus, 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
2 references- A bibliographic index of British graptolites (Graptoloidea)1
- Ordovician (Upper Caradocian) Graptolites from Idaho and Nevada1
Each of the 2 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 Dicellograptus
- Source
- iDigBio
- Credit
- via iDigBio
- Licence
- CC0
- Commercial use
- the licence allows it
No 3D scan of Dicellograptus 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 itDicranograptidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Lapworth 1873