Isograptus

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 least 14 million years on record.

The record covers at least 473.1 Mya to 458.2 Mya. No occurrence read is dated outside 484.3 Mya to 449.5 Mya.

Ordovician — about 114 of 114 occurrencesOrdovician485–484 Mya — about 0.0 occurrences484–483 Mya — about 0.1 occurrences483–481 Mya — about 0.1 occurrences481–480 Mya — about 0.1 occurrences480–479 Mya — about 0.1 occurrences479–478 Mya — about 0.4 occurrences478–477 Mya — about 1 occurrence477–475 Mya — about 3 occurrences475–474 Mya — about 3 occurrences474–473 Mya — about 3 occurrences473–472 Mya — about 3 occurrences472–471 Mya — about 21 occurrences471–469 Mya — about 46 occurrences469–468 Mya — about 4 occurrences468–467 Mya — about 3 occurrences467–466 Mya — about 3 occurrences466–464 Mya — about 3 occurrences464–463 Mya — about 3 occurrences463–462 Mya — about 3 occurrences462–461 Mya — about 3 occurrences461–460 Mya — about 3 occurrences460–458 Mya — about 3 occurrences458–457 Mya — about 1 occurrence457–456 Mya — about 0.6 occurrences456–455 Mya — about 0.6 occurrences455–454 Mya — about 0.6 occurrences454–452 Mya — about 0.6 occurrences452–451 Mya — about 0.4 occurrences451–450 Mya — about 0.4 occurrences450–449 Mya — about 0.2 occurrences473.1 Mya458.2 Mya485 Mya448.8 Mya

114 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

114 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

32 formations

Aorangi Mine — 40.68°S, 172.68°EAorangi Mine — 40.72°S, 172.45°EAorangi Mine — 41.99°S, 172.16°EAorangi Mine — 41.67°S, 172.39°EAorangi Mine — 41.75°S, 171.65°ETuloi — 52.22°N, 87.01°ETuloi — 52.02°N, 87.12°EPhi Kappa — 43.80°N, 114.25°WPhi Kappa — 43.85°N, 114.18°WVoskresenka — 51.17°N, 82.05°EVoskresenka — 51.61°N, 82.94°EVoskresenka — 51.62°N, 82.62°EKarasa — 52.22°N, 87.01°EKarasa — 52.02°N, 87.12°ENingguo — 28.00°N, 118.00°ENingguo — 30.00°N, 120.00°ENingguo — 29.00°N, 119.00°ELower Road River — 64.95°N, 141.04°WLower Road River — 65.19°N, 141.32°WPerkins Canyon — 38.92°N, 116.87°WToyen — 60.00°N, 11.00°ERoad River — 65.02°N, 141.21°WFort Peña — 29.42°N, 98.73°WDeepkill Shale — 42.65°N, 73.76°WXiahuangkeng — 22.00°N, 112.00°EJiuxi — 29.00°N, 111.00°EHule — 29.00°N, 115.00°EGualcamayo — 30.00°S, 69.00°WXiayan — 37.00°N, 103.00°EYingou — 40.00°N, 98.00°EXiangGuLeTag — 43.00°N, 90.00°ESaergan — 40.10°N, 80.33°EZhongbao — 37.00°N, 102.00°EUpper Road River — 65.88°N, 135.58°WSunblood — 61.50°N, 125.85°WLower Road River — 65.40°N, 137.38°W

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The named rock units Isograptus has been recovered from, largest first. Drawn where the rock is now, not where it formed. 8 further formations hold fewer occurrences each and are not listed. 6 occurrences have no formation on record, which is common for older literature.

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

29 references

Each of the 114 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. 17 further references are not listed. 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 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