Psigraptus arcticus
No picture of Psigraptus arcticus 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 Psigraptus arcticus, or no answer at all. This entry cannot say which.
On record
Recorded, not inferred- Sits inside
- PsigraptusPBDB
- 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 2.2 million years on record.
The record covers at least 477.1 Mya to 474.9 Mya. No occurrence read is dated outside 486.4 Mya to 473.1 Mya.
2 occurrences of Psigraptus arcticus 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
- Lower Road River Formation · Road River Group1
- Mt. Field Siltstone Formation1
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The named rock units Psigraptus arcticus has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Psigraptus arcticus and its relatives
OrdovicianWhere Psigraptus arcticus and its relatives were recorded in the Ordovician.
Found in the same rock
6 taxa- Apheoorthis humboldtensis1 site
- Dikelokephalina1 site
- Hillyardina tasmaniensis1 site
- Psigraptus lenzi1 site
- Tasmanaspis lewisi1 site
- Victorispina1 site
The Paleobiology Database records 2 sites for Psigraptus arcticus, and this reads all of them. The number is how many of those sites it was catalogued from too.
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- Taxonomic and biostratigraphical significance of the Tremadoc graptolite fauna from northern Yukon Territory, Canada1
- Early Ordovician orthide brachiopods from southern Tasmania1
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. Each entry links to doi.org. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content0
No picture of Psigraptus arcticus 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 Psigraptus arcticus, or no answer at all. This entry cannot say which.
No 3D scan of Psigraptus arcticus 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 itPsigraptus through timeFormations of the OrdovicianThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Jackson 1967