Expansograptus
Searched as Expansograptus cf. nicholsoni. The Paleobiology Database treats Expansograptus as the accepted name.
No picture of Expansograptus was found. Wikipedia, Wikidata and iDigBio were searched and had none. Smithsonian Open Access did not answer, so this is what the others held rather than everything there is. GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Expansograptus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- DidymograptidaePBDB
- 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 7.7 million years on record.
The one occurrence read is dated to somewhere between 477.1 Mya and 469.4 Mya, which is a dating window rather than a span.
1 occurrence of Expansograptus 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
1 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
1 formation
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The named rock units Expansograptus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Expansograptus and its relatives
OrdovicianWhere Expansograptus and its relatives were recorded in the Ordovician.
Found in the same rock
247 taxa- Tetragraptus11 sites
- Acrograptus9 sites
- Isograptus9 sites
- Phyllograptus8 sites
- Didymograptus7 sites
- Pseudotrigonograptus7 sites
- Corymbograptus6 sites
- Eotetragraptus6 sites
- Isograptus gibberulus6 sites
- Paradelograptus5 sites
- Paratetragraptus approximatus5 sites
- Pendeograptus pendens5 sites
- Pseudophyllograptus angustifolius5 sites
- Pseudotrigonograptus ensiformis5 sites
- Undulograptus5 sites
- Didymograptus (Expansograptus) validus4 sites
- Glossograptus4 sites
- Parisograptus caduceus4 sites
- Pseudoisograptus4 sites
- Tshallograptus fruticosus4 sites
- Archaeorthis altaica3 sites
- Baltograptus deflexus3 sites
- Baltograptus geometricus3 sites
- Baltograptus vacillans3 sites
The Paleobiology Database records 36 sites for Expansograptus, 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 the Paleobiology Database's own record for the work.
Media and terms
Media content0
No picture of Expansograptus was found. Wikipedia, Wikidata and iDigBio were searched and had none.
Smithsonian Open Access did not answer, so this is what the others held rather than everything there is.
GBIF was asked, and what came back is not recorded: nothing, or a picture this site could not tie to Expansograptus, or no answer at all. This entry cannot say which.
No 3D scan of Expansograptus was found in MorphoSource and Sketchfab.
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 itDidymograptidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Bouček and Přibyl 1953)