Diodora
Diodora is a genus of small to medium-sized keyhole limpet in the family Fissurellidae.

Sharon Mooney. (The original uploader was Edwardtbabinski at English Wikipedia ..) · CC BY 2.5 · 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
- DiodoriniPBDB
- Diet
- grazer, carnivorePBDB
- Life habit
- epifaunalPBDB
- Motility
- facultatively mobilePBDB
- Vision
- limitedPBDB, for Gastropoda
Time the record covers
At least 93 million years on record.
The record covers at least 93.9 Mya to 11.7 ka. No occurrence read is dated outside 100.5 Mya to 0 Mya.
480 occurrences of Diodora 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
480 occurrences- Late Cretaceousunder 1%
- Paleocene5%
- Eocene12%
- Oligocene2%
- Miocene18%
- Pliocene20%
- Pleistocene41%
- Holocene2%
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
136 formations
- Palos Verdes Sand Formation18
- Cook Mountain Formation · Claiborne Group16
- Mare Formation · Cabo Blanco Group13
- Caloosahatchee Formation12
- Unnamed Formation11
- Yorktown Formation10
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The named rock units Diodora has been recovered from, largest first. Drawn where the rock is now, not where it formed. 112 further formations hold fewer occurrences each and are not listed. 141 occurrences have no formation on record, which is common for older literature.
Diodora and its relatives
PleistoceneWhere Diodora and its relatives were recorded in the Pleistocene.
Found in the same rock
3,908 taxa- Turritella38 sites
- Chlamys26 sites
- Ostrea24 sites
- Chama23 sites
- Marginella22 sites
- Anadara21 sites
- Cerithiopsis21 sites
- Cerithium21 sites
- Conus21 sites
- Dentalium19 sites
- Ficus18 sites
- Glycymeris17 sites
- Antisabia panamensis16 sites
- Barbatia16 sites
- Callianax biplicata16 sites
- Epilucina californica16 sites
- Californiconus californicus15 sites
- Calliostoma15 sites
- Cardita15 sites
- Littorina (Littorina) scutulata15 sites
- Lottia scabra15 sites
- Acmaea mitra14 sites
- Cumingia californica14 sites
- Epitonium14 sites
The Paleobiology Database records 285 sites for Diodora, 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
187 references- Catalogue of the Paleocene and Eocene mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Pteropoda, Scaphopoda and Cephalopoda20
- Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions13
- The Early Pliocene Gastropoda (Mollusca) of Estepona, Southern Spain. Part 1: Vetigastropoda13
- Miocene and Pliocene mollusks from Trinidad11
- Geology of San Nicolas Island, California11
- The Molluscan Fauna of the Alum Bluff Group of Florida11
- A review of the Quaternary Mollusca of the Palos Verdes Peninsula10
- Unpublished notes on Caribbean collection of Jack and Winifred Gibson-Smith, Naturhistorisches Museum Basel10
- Late Cenozoic gastropods from northern Venezuela10
- Resilience of marine invertebrate communities during the early Cenozoic hyperthermals9
- Faunal stability and environmental change in the middle Eocene Gulf Coastal Plain (PhD Thesis, Harvard University)9
- Unpublished taxonomic backbone for Eastern Pacific Invertebrate Communities of the Cenozoic (EPICC) Thematic Collections Network8
Each of the 480 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. 175 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 content3
Picture of Diodora
- Source
- Wikipedia/Commons
- Credit
- Sharon Mooney. (The original uploader was Edwardtbabinski at English Wikipedia ..)
- Licence
- CC BY 2.5
- Commercial use
- the licence allows it
CT scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Diodora aspera · SMF:360090
3D model
- Source
- Sketchfab
- Licence
- CC0 Public Domain
- Commercial use
- the licence allows it
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, “Diodora”
- 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 itDiodorini through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Gray 1821