Arjamannia inexpectans

No picture of Arjamannia inexpectans 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 Arjamannia inexpectans, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
ArjamanniaPBDB
Diet
detritivorePBDB, for Murchisoniina
Life habit
epifaunalPBDB, for Murchisoniina
Motility
slow-movingPBDB, for Murchisoniina
Vision
limitedPBDB, for Murchisoniina
Environment
coastal,marinePBDB, for Murchisoniina

Time the record covers

At most 11 million years on record.

Every occurrence read is dated to somewhere between 443.1 Mya and 432.9 Mya, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Ordovician — about 0 of 3 occurrencesSilurian — about 3 of 3 occurrencesSilurian443–443 Mya — about 0.0 occurrences443–442 Mya — about 0.1 occurrences442–442 Mya — about 0.1 occurrences442–442 Mya — about 0.1 occurrences442–441 Mya — about 0.1 occurrences441–441 Mya — about 0.1 occurrences441–441 Mya — about 0.1 occurrences441–440 Mya — about 0.2 occurrences440–440 Mya — about 0.3 occurrences440–439 Mya — about 0.3 occurrences439–439 Mya — about 0.3 occurrences439–439 Mya — about 0.3 occurrences439–438 Mya — about 0.2 occurrences438–438 Mya — about 0.1 occurrences438–438 Mya — about 0.1 occurrences438–437 Mya — about 0.1 occurrences437–437 Mya — about 0.1 occurrences437–437 Mya — about 0.1 occurrences437–436 Mya — about 0.1 occurrences436–436 Mya — about 0.1 occurrences436–435 Mya — about 0.1 occurrences435–435 Mya — about 0.1 occurrences435–435 Mya — about 0.1 occurrences435–434 Mya — about 0.1 occurrences434–434 Mya — about 0.1 occurrences434–434 Mya — about 0.1 occurrences434–433 Mya — about 0.1 occurrences433–433 Mya — about 0.0 occurrences443.6 Mya432.4 Mya

3 occurrences of Arjamannia inexpectans on record, most of them in the Silurian. 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

Pentamerus Sandstone — 52.02°N, 4.85°WPentamerus Sandstone — 52.64°N, 2.92°WBrassfield — 39.34°N, 84.12°W

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The named rock units Arjamannia inexpectans has been recovered from, largest first. Drawn where the rock is now, not where it formed.

Arjamannia inexpectans and its relatives

Silurian

Where Arjamannia inexpectans and its relatives were recorded in the Silurian.

Found in the same rock

13 taxa

The Paleobiology Database records 3 sites for Arjamannia inexpectans, 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

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 Arjamannia inexpectans 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 Arjamannia inexpectans, or no answer at all. This entry cannot say which.

No 3D scan of Arjamannia inexpectans 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 itArjamannia through timeFormations of the SilurianThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Hall and Whitfield 1875)