Mitridae
Mitridae, known as mitres or mitre shells, are a taxonomic family of sea snails, widely distributed marine gastropod molluscs in the clade Mitroidea.

Uncredited · Copyrighted free use · 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- Also called
- mitre shellPBDB
- Sits inside
- MitroideaPBDB
- Diet
- carnivorePBDB
- Life habit
- epifaunalPBDB
- Motility
- actively mobilePBDB
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 100 million years on record.
The record covers at least 100.5 Mya to 11.7 ka. No occurrence read is dated outside 106.3 Mya to 0 Mya.
917 occurrences of Mitridae 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
917 occurrences- Early Cretaceousunder 1%
- Late Cretaceous2%
- Paleocene3%
- Eocene22%
- Oligocene5%
- Miocene36%
- Pliocene13%
- Pleistocene19%
- Holoceneunder 1%
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
221 formations
- Termofourà Formation39
- Cook Mountain Formation · Claiborne Group35
- Gurabo Formation26
- Gatun Formation24
- Red Bluff Formation · Vicksburg Group16
- Lisbon Formation · Claiborne Group14
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The named rock units Mitridae has been recovered from, largest first. Drawn where the rock is now, not where it formed. 197 further formations hold fewer occurrences each and are not listed. 203 occurrences have no formation on record, which is common for older literature.
Mitridae and its relatives
MioceneWhere Mitridae and its relatives were recorded in the Miocene.
Found in the same rock
4,030 taxa- Turritella38 sites
- Mitra27 sites
- Limopsis23 sites
- Fusimitra22 sites
- Ostrea20 sites
- Cadulus19 sites
- Cerithiopsis19 sites
- Ficus19 sites
- Pitar19 sites
- Chlamys18 sites
- Conus18 sites
- Glycymeris18 sites
- Naticidae18 sites
- Acteon17 sites
- Chama17 sites
- Corbula17 sites
- Dentalium17 sites
- Sassia17 sites
- Scapharca (Scapharca) diluvii17 sites
- Hipponix16 sites
- Turricula16 sites
- Aequipecten15 sites
- Cerithiella14 sites
- Euspira14 sites
The Paleobiology Database records 405 sites for Mitridae, and this reads 240 of them. Of that, one read hit the database's own return limit, so every count below is a floor rather than a total. 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
246 references- Resilience of marine invertebrate communities during the early Cenozoic hyperthermals53
- Lower to Middle Miocene Mollusc assemblages from the Torino Hills (NW Italy): Synthesis of new data and chronostratigraphical arrangement45
- Catalogue of the Paleocene and Eocene mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Pteropoda, Scaphopoda and Cephalopoda42
- Skwarko, 199439
- Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions35
- Unpublished notes on Caribbean collection of the Naturhistorisches Museum Basel25
- Cenozoic fossil mollusks from Western Pacific Islands; Gastropods (Eratoidae through Harpidae)19
- A paleobiotic survey of Caribbean faunas from the Neogene of the Isthmus of Panama18
- Geology and paleontology of canal zone and adjoing parts of Panama: Description of Tertiary mollusks (gastropods: Columbellidae to Volutidae).17
- The Molluscan Fauna of the Alum Bluff Group of Florida15
- Fossil mollusks of Oahu, Hawaii Islands14
- 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 deposits14
Each of the 917 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. 234 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 content1
Picture of Mitridae
- Source
- Wikipedia/Commons
- Credit
- nobody named on the record
- Licence
- Copyrighted free use
- Commercial use
- cannot be read from the licence given — check the record
No 3D scan of Mitridae was found in MorphoSource and Sketchfab.
Smithsonian Open Access was 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, “Mitridae”
- 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 itMitroidea through timeFormations of the MioceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Swainson 1831