Tonna
Tonna is a genus of large sea snails, marine gastropod molluscs in the family Tonnidae, the tun or cask shells.

H. Zell (new composition: Alchemist-hp ) · 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
- TonnidaePBDB
- Diet
- carnivorePBDB, for Tonnidae
- Life habit
- epifaunalPBDB, for Tonnidae
- Motility
- actively mobilePBDB, for Tonnidae
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 48 million years on record.
The record covers at least 48.07 Mya to 11.7 ka. No occurrence read is dated outside 59.24 Mya to 0 Mya.
103 occurrences of Tonna on record, most of them in the Pliocene. 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
103 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
36 formations
- Talar Formation8
- Mare Formation · Cabo Blanco Group5
- Ormara & Jiwani Formation5
- Chatti Mudstone Formation3
- Gurabo Formation3
- Toshima Sand Formation · Toyohashi Group3
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The named rock units Tonna has been recovered from, largest first. Drawn where the rock is now, not where it formed. 12 further formations hold fewer occurrences each and are not listed. 36 occurrences have no formation on record, which is common for older literature.
Tonna and its relatives
PlioceneWhere Tonna and its relatives were recorded in the Pliocene.
Found in the same rock
1,549 taxa- Anadara13 sites
- Chlamys13 sites
- Solen11 sites
- Turritella11 sites
- Cardium10 sites
- Natica10 sites
- Anomia9 sites
- Modiolus9 sites
- Pecten9 sites
- Amusium8 sites
- Conus8 sites
- Ostrea8 sites
- Solecurtus8 sites
- Cerithium7 sites
- Nassarius7 sites
- Nucula7 sites
- Tritia7 sites
- Anomia ephippium6 sites
- Bolma rugosus6 sites
- Clementia (Clementia) papyracea6 sites
- Dosinia6 sites
- Glycymeris (Glycymeris)6 sites
- Laevicardium6 sites
- Narona6 sites
The Paleobiology Database records 41 sites for Tonna, 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
42 references- Neogene and Quaternary Mollusca from the Makran Coast, Pakistan16
- Neogene Tonnoidean Gastropods of Tropical and South America; contributions to the Dominican Republic and Panama Paleontology Projects and Uplift of the Central American Isthmus10
- Tertiary and Quaternary Gastropoda of Okinawa: A comparison of the late Miocene, Pliocene, and Pleistocene Gastropoda of Okinawa with related faunas of East Asia together with a resume of the geological setting of the fossiliferous deposits10
- Die Tertiärschichten auf Java. Nach den Entdecjungen von Fr. Junghuhn6
- Unpublished notes on Caribbean collection of Jack and Winifred Gibson-Smith, Naturhistorisches Museum Basel4
- The Early Pliocene Gastropoda (Mollusca) of Estepona, Southern Spain. Part 5: Tonnoidea, Ficoidea4
- Biozonation of the Neogene invertebrate megafauna of the Hellenic area4
- Summary of the geology and paleontology of the Atsumi Peninsula, Aichi Prefecture, Japan3
- Late Cenozoic gastropods from northern Venezuela3
- An Early Pleistocene molluscan assemblage from Fiji: gastropod faunal composition, paleoecology and biogeography2
- Preliminary notes on fossil records of East Malaysia and Brunei2
- Cenozoic fossil mollusks from Western Pacific Islands; Gastropods (Eratoidae through Harpidae)2
Each of the 103 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. 30 further references are 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 content2
Picture of Tonna
- Source
- Wikipedia/Commons
- Credit
- H. Zell (new composition: Alchemist-hp )
- Licence
- CC BY-SA 3.0
- Commercial use
- the licence allows it
3D model
- Source
- Sketchfab
- Credit
- darwinmuseum.ru
- Licence
- CC0 Public Domain
- Commercial use
- the licence allows it
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 itTonnidae through timeFormations of the PlioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Brünnich 1772