Aplysiida
The order Aplysiida, commonly known as sea hares, are medium-sized to very large opisthobranch gastropod molluscs with a soft internal shell made of protein. These are marine gastropod molluscs in the superfamilies Aplysioidea and Akeroidea.
Cunha CM, Rosenberg G (2019) Type specimens of Aplysiida (Gastropoda, Heterobranchia) in the Academy of Natural Scien… · 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
- EuopisthobranchiaPBDB
- Life habit
- epifaunalPBDB, for Gastropoda
- Motility
- actively mobilePBDB, for Gastropoda
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 399 million years on record.
The record covers at least 419.62 Mya to 20.45 Mya. No occurrence read is dated outside 422.7 Mya to 15.98 Mya.
5 occurrences of Aplysiida on record, most of them in the Miocene. The Paleobiology Database records this as a living group, and the chart stops with its fossils rather than at the present. 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 occurrencesThese 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
- Chipola Formation · Alum Bluff Group4
- Ledbury Formation1
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The named rock units Aplysiida has been recovered from, largest first. Drawn where the rock is now, not where it formed.
Aplysiida and its relatives
MioceneWhere Aplysiida and its relatives were recorded in the Miocene.
Found in the same rock
316 taxa- Acteocina4 sites
- Acteon korphys4 sites
- Anadara4 sites
- Antalis4 sites
- Calliostoma grammaticum4 sites
- Carditamera4 sites
- Chione chipolana4 sites
- Chlorostoma (Omphalius)4 sites
- Clavatula4 sites
- Conus sulculus4 sites
- Corbula (Caryocorbula)4 sites
- Cubitostrea rugifera4 sites
- Cythara (Mangelia)4 sites
- Divaricella (Divaricella) chipolana4 sites
- Dolabella4 sites
- Drillia4 sites
- Ervilia chipolana4 sites
- Gouldia4 sites
- Here glenni4 sites
- Lindapecten chipolanus4 sites
- Marginella (Cypraeolina)4 sites
- Marginella (Gibberula) chondra4 sites
- Marginella (Serrata) coloba4 sites
- Nassarius (Uzita)4 sites
The Paleobiology Database records 5 sites for Aplysiida, 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
2 references- The Molluscan Fauna of the Alum Bluff Group of Florida4
- Habitat of Llandoverian-Lochkovian eurypterids1
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. 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 Aplysiida
- Source
- Wikipedia/Commons
- Credit
- Cunha CM, Rosenberg G (2019) Type specimens of Aplysiida (Gastropoda, Heterobranchia) in the Academy of Natural Scien…
- Licence
- CC BY 4.0
- Commercial use
- the licence allows it
No 3D scan of Aplysiida 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, “Aplysiida”
- 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 itEuopisthobranchia through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Pelseneer 1906)