Ilyanassa johnsoni

No picture of Ilyanassa johnsoni 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 Ilyanassa johnsoni, or no answer at all. This entry cannot say which.

On record

Recorded, not inferred
Sits inside
IlyanassaPBDB
Diet
carnivorePBDB, for Nassariidae
Life habit
low-level epifaunalPBDB, for Nassariidae
Motility
slow-movingPBDB, for Nassariidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At most 3.6 million years on record.

Every occurrence read is dated to somewhere between 3.6 Mya and 11.7 ka, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Pliocene — about 3 of 5 occurrencesPliocenePleistocene — about 2 of 5 occurrencesPleistoceneHolocene — about 0 of 5 occurrences3.7–3.6 Mya — about 0.1 occurrences3.6–3.4 Mya — about 0.4 occurrences3.4–3.3 Mya — about 0.4 occurrences3.3–3.1 Mya — about 0.4 occurrences3.1–3.0 Mya — about 0.4 occurrences3.0–2.9 Mya — about 0.4 occurrences2.9–2.7 Mya — about 0.4 occurrences2.7–2.6 Mya — about 0.4 occurrences2.6–2.5 Mya — about 0.2 occurrences2.5–2.3 Mya — about 0.1 occurrences2.3–2.2 Mya — about 0.1 occurrences2.2–2.0 Mya — about 0.1 occurrences2.0–1.9 Mya — about 0.1 occurrences1.9–1.8 Mya — about 0.1 occurrences1.8–1.6 Mya — about 0.1 occurrences1.6–1.5 Mya — about 0.1 occurrences1.5–1.4 Mya — about 0.1 occurrences1.4–1.2 Mya — about 0.1 occurrences1.2–1.1 Mya — about 0.1 occurrences1.1–957 ka Mya — about 0.1 occurrences957 ka–820 ka Mya — about 0.1 occurrences820 ka–683 ka Mya — about 0.1 occurrences683 ka–547 ka Mya — about 0.1 occurrences547 ka–410 ka Mya — about 0.1 occurrences410 ka–273 ka Mya — about 0.1 occurrences273 ka–137 ka Mya — about 0.1 occurrences137 ka–0 Mya — about 0.0 occurrences4.1 Mya0 Mya

5 occurrences of Ilyanassa johnsoni on record, most of them in the Pliocene. 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

5 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

Duplin — 34.50°N, 79.11°WDuplin — 34.90°N, 78.05°WDuplin — 34.62°N, 79.01°WWaccamaw — 34.33°N, 78.20°WWaccamaw — 34.56°N, 78.49°W

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

Ilyanassa johnsoni and its relatives

Pliocene

Where Ilyanassa johnsoni and its relatives were recorded in the Pliocene.

Found in the same rock

200 taxa

The Paleobiology Database records 5 sites for Ilyanassa johnsoni, 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 5 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 Ilyanassa johnsoni 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 Ilyanassa johnsoni, or no answer at all. This entry cannot say which.

No 3D scan of Ilyanassa johnsoni 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 itIlyanassa through timeFormations of the PlioceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Dall 1892)