Bursa granularis

Dulcerana granularis, common name the granular frog shell, is a species of medium-sized sea snail, a marine gastropod mollusk in the family Bursidae, the frog shells.

Bursa granularis

H. Zell · 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
BursaPBDB
Diet
carnivorePBDB, for Bursidae
Life habit
epifaunalPBDB, for Bursidae
Motility
actively mobilePBDB, for Bursidae
Vision
limitedPBDB, for Gastropoda

Time the record covers

At least 15 million years on record.

The record covers at least 15.98 Mya to 129 ka. No occurrence read is dated outside 23.04 Mya to 11.7 ka.

Oligocene — about 0 of 7 occurrencesMiocene — about 1 of 7 occurrencesMiocenePliocene — about 0 of 7 occurrencesPleistocene — about 6 of 7 occurrencesPleistocene24–23 Mya — about 0.0 occurrences23–22 Mya — about 0.1 occurrences22–21 Mya — about 0.1 occurrences21–20 Mya — about 0.1 occurrences20–20 Mya — about 0.1 occurrences20–19 Mya — about 0.1 occurrences19–18 Mya — about 0.1 occurrences18–17 Mya — about 0.1 occurrences17–16 Mya — about 0.1 occurrences16–16 Mya — about 0.1 occurrences3.1–2.4 Mya — about 0.4 occurrences2.4–1.6 Mya — about 1 occurrence1.6–785 ka Mya — about 1 occurrence785 ka–0 Mya — about 3 occurrences15.98 Mya129 ka23.5 Mya0 Mya

7 occurrences of Bursa granularis 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

7 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

4 formations

Bundera Calcarenite — 21.89°S, 114.02°EQuilon Limestone — 8.87°N, 76.59°EFalmouth — 18.47°N, 77.45°WBoat Cove — 29.22°S, 177.83°W

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The named rock units Bursa granularis has been recovered from, largest first. Drawn where the rock is now, not where it formed. 3 occurrences have no formation on record, which is common for older literature.

Bursa granularis and its relatives

Pleistocene

Where Bursa granularis and its relatives were recorded in the Pleistocene.

Found in the same rock

284 taxa

The Paleobiology Database records 4 sites for Bursa granularis, 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

6 references

Each of the 7 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 Bursa granularis

Credit
H. Zell
Licence
CC BY-SA 3.0
Commercial use
the licence allows it

No 3D scan of Bursa granularis 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 itBursa through timeFormations of the PleistoceneThe world it lived on

Occurrence data from the Paleobiology Database, CC BY 4.0. (Röding 1798)