Isograptus
Searched as Isograptus victoriae divergens. The Paleobiology Database treats Isograptus as the accepted name.
Isograptus is an extinct genus of graptolites from the Ordovician.
No picture of Isograptus 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 Isograptus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- IsograptidaePBDB
- 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 900 thousand years on record.
Every occurrence read is dated to somewhere between 470.3 Mya and 469.4 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.
2 occurrences of Isograptus 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
1 formation
Loading coastlines…
The named rock units Isograptus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Isograptus and its relatives
OrdovicianWhere Isograptus and its relatives were recorded in the Ordovician.
Found in the same rock
261 taxa- Didymograptus41 sites
- Glossograptus22 sites
- Phyllograptus21 sites
- Glyptograptus17 sites
- Tetragraptus17 sites
- Cardiograptus13 sites
- Pseudoclimacograptus13 sites
- Amplexograptus12 sites
- Climacograptus11 sites
- Fucoides serra11 sites
- Pseudisograptus11 sites
- Expansograptus10 sites
- Pseudotrigonograptus10 sites
- Cryptograptus9 sites
- Loganograptus9 sites
- Baltograptus deflexus8 sites
- Graptolithina8 sites
- Pseudisograptus hastatus8 sites
- Caryocaris7 sites
- Dichograptus7 sites
- Tetragraptus quadribrachiatus7 sites
- Paraglossograptus6 sites
- Parisograptus caduceus6 sites
- Acrograptus5 sites
The Paleobiology Database records 78 sites for Isograptus, 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 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. Each entry links to the Paleobiology Database's own record for the work.
Media and terms
Media content0
No picture of Isograptus 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 Isograptus, or no answer at all. This entry cannot say which.
No 3D scan of Isograptus 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.
The description on this site
- Source
- Wikipedia, “Isograptus”
- 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 itIsograptidae through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Moberg 1892