Ilyanassa scalaspira
No picture of Ilyanassa scalaspira 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 scalaspira, 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.
8 occurrences of Ilyanassa scalaspira 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
8 occurrences- Pliocene50%
- Pleistocene50%
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
3 formations
- Waccamaw Formation4
- Duplin Formation3
- Tamiami Formation · Okeechobee Group1
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The named rock units Ilyanassa scalaspira has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Ilyanassa scalaspira and its relatives
PlioceneWhere Ilyanassa scalaspira and its relatives were recorded in the Pliocene.
Found in the same rock
278 taxa- Mercenaria campechiensis rileyi7 sites
- Urosalpinx7 sites
- Carolinapecten eboreus6 sites
- Crassinella lunulata6 sites
- Glans (Pteromeris) perplana abbreviata6 sites
- Macrocallista (Macrocallista) reposta6 sites
- Moerella dupliniana6 sites
- Abra aequalis5 sites
- Chione cribraria5 sites
- Donax5 sites
- Glans (Pleuromeris) tridentata decemcostata5 sites
- Glycymeris americana5 sites
- Ilyanassa johnsoni5 sites
- Ilyanassa sexdentata5 sites
- Nanogyra (Palaeogyra) virgula5 sites
- Nucula (Nucula) proxima5 sites
- Parvilucina multistriata5 sites
- Pitar morrhuanus5 sites
- Plicatula gibbosa5 sites
- Pteromeris perplana5 sites
- Timoclea grus5 sites
- Akleistostoma carolinensis4 sites
- Anadara (Rasia) lienosa4 sites
- Astarte (Ashtarotha) concentrica conradi4 sites
The Paleobiology Database records 7 sites for Ilyanassa scalaspira, 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
3 references- Mollusca from the Miocene and Lower Pliocene of Virginia and North Carolina: Part 2. Scaphopoda and Gastropoda6
- Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions1
- Petuch, 19881
Each of the 8 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. 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 Ilyanassa scalaspira 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 scalaspira, or no answer at all. This entry cannot say which.
No 3D scan of Ilyanassa scalaspira 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.
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. (Conrad 1868)