Marsupina nana

Marsupina nana, the dwarf frog shell, is a species of sea snail, a marine gastropod mollusc in the family Bursidae, the frog shells.

Marsupina nana

Shellnut · CC BY-SA 3.0 · 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
MarsupinaPBDB
Diet
carnivorePBDB, for Bursidae
Life habit
epifaunalPBDB, for Bursidae
Motility
actively mobilePBDB, for Bursidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At most 5.4 million years on record.

Every occurrence read is dated to somewhere between 5.333 Mya and 11.7 ka, and nothing in the dating separates them, so that window is what the record shows rather than a span.

Miocene — about 0 of 8 occurrencesPliocene — about 3 of 8 occurrencesPliocenePleistocene — about 5 of 8 occurrencesPleistoceneHolocene — about 0 of 8 occurrences5.4–5.3 Mya — about 0.1 occurrences5.3–5.1 Mya — about 0.1 occurrences5.1–4.9 Mya — about 0.1 occurrences4.9–4.7 Mya — about 0.1 occurrences4.7–4.5 Mya — about 0.1 occurrences4.5–4.3 Mya — about 0.1 occurrences4.3–4.1 Mya — about 0.1 occurrences4.1–3.9 Mya — about 0.1 occurrences3.9–3.7 Mya — about 0.1 occurrences3.7–3.5 Mya — about 0.2 occurrences3.5–3.3 Mya — about 0.3 occurrences3.3–3.1 Mya — about 0.3 occurrences3.1–2.9 Mya — about 0.3 occurrences2.9–2.7 Mya — about 0.3 occurrences2.7–2.5 Mya — about 0.4 occurrences2.5–2.3 Mya — about 0.5 occurrences2.3–2.1 Mya — about 0.5 occurrences2.1–1.9 Mya — about 0.5 occurrences1.9–1.8 Mya — about 0.5 occurrences1.8–1.6 Mya — about 0.5 occurrences1.6–1.4 Mya — about 0.5 occurrences1.4–1.2 Mya — about 0.5 occurrences1.2–972 ka Mya — about 0.5 occurrences972 ka–778 ka Mya — about 0.5 occurrences778 ka–583 ka Mya — about 0.2 occurrences583 ka–389 ka Mya — about 0.2 occurrences389 ka–194 ka Mya — about 0.2 occurrences194 ka–0 Mya — about 0.1 occurrences5.8 Mya0 Mya

8 occurrences of Marsupina nana on record, most of them in the Pleistocene. 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

8 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

5 formations

Jama — 0.20°N, 80.27°WJama — 0.18°S, 80.32°WArmuelles — 8.27°N, 82.87°WArmuelles — 8.27°N, 81.97°WMontezuma — 9.65°N, 85.07°WPenita — 8.23°N, 82.97°WCharco Azul — 8.45°N, 82.83°W

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

Marsupina nana and its relatives

Pleistocene

Where Marsupina nana and its relatives were recorded in the Pleistocene.

Found in the same rock

The Paleobiology Database records no fossil sites for Marsupina nana, so there is nothing to compare it with.

Entered from

3 references

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 content1

Picture of Marsupina nana

Credit
Shellnut
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Marsupina nana 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

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 itMarsupina through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Broderip and Sowerby 1829)