Isograptus

Searched as Isograptus caduceus australis. 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 13 million years on record.

Every occurrence read is dated to somewhere between 470.3 Mya and 458.2 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Ordovician — about 3 of 3 occurrencesOrdovician470–470 Mya — about 0.8 occurrences470–469 Mya — about 1.0 occurrences469–469 Mya — about 0.2 occurrences469–469 Mya — about 0.0 occurrences469–468 Mya — about 0.0 occurrences468–468 Mya — about 0.0 occurrences468–467 Mya — about 0.0 occurrences467–467 Mya — about 0.0 occurrences467–466 Mya — about 0.0 occurrences466–466 Mya — about 0.0 occurrences466–466 Mya — about 0.0 occurrences466–465 Mya — about 0.0 occurrences465–465 Mya — about 0.0 occurrences465–464 Mya — about 0.0 occurrences464–464 Mya — about 0.0 occurrences464–463 Mya — about 0.0 occurrences463–463 Mya — about 0.0 occurrences463–463 Mya — about 0.0 occurrences463–462 Mya — about 0.0 occurrences462–462 Mya — about 0.0 occurrences462–461 Mya — about 0.0 occurrences461–461 Mya — about 0.0 occurrences461–460 Mya — about 0.0 occurrences460–460 Mya — about 0.0 occurrences460–459 Mya — about 0.0 occurrences459–459 Mya — about 0.0 occurrences459–459 Mya — about 0.0 occurrences459–458 Mya — about 0.0 occurrences470.8 Mya457.7 Mya

3 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

3 occurrences

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

Aorangi Mine — 41.67°S, 172.39°EAorangi Mine — 40.72°S, 172.45°ESlaty Creek — 40.70°S, 172.44°E

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

Ordovician

Where Isograptus and its relatives were recorded in the Ordovician.

Found in the same rock

261 taxa

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 reference

Each of the 3 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

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