Eratoidea
Eratoidea is a genus of sea snails, marine gastropod mollusks in the family Marginellidae, the margin snails.

Manuel CABALLER · CC BY 4.0 · via Wikipedia/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- MarginellidaePBDB
- Diet
- carnivorePBDB, for Marginellidae
- Life habit
- epifaunalPBDB, for Marginellidae
- Motility
- actively mobilePBDB, for Marginellidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 31 million years on record.
The record covers at least 33.9 Mya to 2.58 Mya. No occurrence read is dated outside 37.71 Mya to 11.7 ka.
26 occurrences of Eratoidea on record, most of them in the Miocene. The Paleobiology Database records this as a living group. 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
26 occurrences- Eocene8%
- Oligocene10%
- Miocene44%
- Pliocene22%
- Pleistocene17%
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
10 formations
- Togopi Formation7
- Dry Creek Sands Formation6
- Bohio Formation1
- Caimito Formation1
- Culebra Formation1
- Arcadia Formation · Hawthorn Group1
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The named rock units Eratoidea has been recovered from, largest first. Drawn where the rock is now, not where it formed. 5 occurrences have no formation on record, which is common for older literature.
Eratoidea and its relatives
MioceneWhere Eratoidea and its relatives were recorded in the Miocene.
Found in the same rock
982 taxa- Mitrella5 sites
- Anadara4 sites
- Bornia4 sites
- Conus4 sites
- Thericium4 sites
- Acteon3 sites
- Amalda (Baryspira)3 sites
- Austrohinnites polyaktinos3 sites
- Calliostoma3 sites
- Cantharidus3 sites
- Cerithium3 sites
- Cylichna angustata3 sites
- Diastoma3 sites
- Glyptozaria3 sites
- Limopsis3 sites
- Macoma3 sites
- Marginella3 sites
- Marginella (Eratoidea) mollitor3 sites
- Mitra (Tiara)3 sites
- Niso3 sites
- Pellax3 sites
- Retusa3 sites
- Rissoa3 sites
- Strioterebrum3 sites
The Paleobiology Database records 12 sites for Eratoidea, 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
13 references- Preliminary notes on fossil records of East Malaysia and Brunei7
- The molluscan fauna of the Pliocene strata underlying the Adelaide Plains. Part V - Gastropoda (Eratoidae to Scaphandridae)6
- Geology and paleontology of canal zone and adjoing parts of Panama: Description of Tertiary mollusks (gastropods: Eulimidae, Marginellidae to Helminthoglyptidae).2
- On the ages of certain Upper Tertiary beds of Peninsula India and Ceylon2
- Further Mollusca from the late Eocene Pallinup Formation, Eucla Basin, Western Australia1
- Skwarko, 19941
- Preangerian (Late Miocene) Mollusca from a hill near Sekurau, northern Kutai, Kalimantan Timur (East Borneo)1
- Cenozoic fossil mollusks from Western Pacific Islands; Gastropods (Volutidae through Terebridae)1
- Cenozoic fossil mollusks from Western Pacific Islands; Gastropods (Eratoidae through Harpidae)1
- Karagyuleva, 19641
- Geology and paleontology of canal zone and adjoing parts of Panama: Description of Tertiary mollusks (gastropods: Columbellidae to Volutidae).1
- Pliocene Mollusca of Southern Florida1
Each of the 26 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. 1 further reference is 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 content1
Picture of Eratoidea
- Source
- Wikipedia/Commons
- Credit
- Manuel CABALLER
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Eratoidea 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.
The description on this site
- Source
- Wikipedia, “Eratoidea”
- 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 itMarginellidae through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Weinkauff 1879)