Ctena orbiculata
Ctena orbiculata, commonly known as the dwarf tiger lucine, is a species of bivalve mollusc in the family Lucinidae. It can be found along the Atlantic coast of North America, ranging from North Carolina to the West Indies.

Montagu, 1808 · CC0 · 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
- CtenaPBDB
- Diet
- chemosymbioticPBDB, for Ctena
- Life habit
- infaunalPBDB, for Ctena
- Motility
- facultatively mobilePBDB, for Ctena
- Vision
- blindPBDB, for Bivalvia
Time the record covers
At least 5.3 million years on record.
The record covers at least 5.333 Mya to 11.7 ka. No occurrence read is dated outside 11.63 Mya to 0 Mya.
22 occurrences of Ctena orbiculata 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
22 occurrences- Miocene5%
- Pliocene9%
- Pleistocene82%
- Holocene5%
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
11 formations
- Belmont Formation3
- Ironshore Formation3
- Devonshire Formation2
- Spencer's Point Formation2
- Caloosahatchee Formation2
- Falmouth Formation · Coastal Group2
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The named rock units Ctena orbiculata 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.
Ctena orbiculata and its relatives
PleistoceneWhere Ctena orbiculata and its relatives were recorded in the Pleistocene.
Found in the same rock
628 taxa- Lindapecten muscosus4 sites
- Phacoides4 sites
- Abra aequalis3 sites
- Americardia media3 sites
- Anadara (Rasia) lienosa3 sites
- Angulus versicolor3 sites
- Anomalocardia3 sites
- Arcopsis adamsi3 sites
- Brachidontes exustus3 sites
- Caryocorbula caribaea3 sites
- Chione cancellata3 sites
- Diodora3 sites
- Diodora cayenensis3 sites
- Lamarcka imbricata3 sites
- Mulinia3 sites
- Niso3 sites
- Nuculana acuta3 sites
- Papyridea semisulcata3 sites
- Plicatula gibbosa3 sites
- Semele purpurascens3 sites
- Solecurtus3 sites
- Tegula3 sites
- Trachycardium (Dallocardia) muricatum3 sites
- Acar domingensis2 sites
The Paleobiology Database records 5 sites for Ctena orbiculata, 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
11 references- The marine Pleistocene mollusks of Bermuda7
- Distribution of Bivalves and Gastropod in the Pleistocene Ironshore Formation, Grand Cayman, British West Indies3
- Unpublished notes on Caribbean collection of Jack and Winifred Gibson-Smith, Naturhistorisches Museum Basel2
- The benthic mollusk faunas of two contrasting reef paleosubenvironments: Falmouth Formation (late Pleistocene, last interglacial), Jamaica2
- Pliocene Mollusca of Southern Florida2
- Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions1
- Aguilera, 20041
- Mollusca of the "Glades" unit in southern Florida: Part I Introduction and observations1
- Cenozoic Mollusks from the drillholes Cassino and Palmares do Sul of the Coastal Plain of Rio Grande do Sul1
- A geological reconnaissance of the Dominican Republic1
- Two collections of Pleistocene fossils from the Isthmus of Panama1
Each of the 22 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 content2
Picture of Ctena orbiculata
- Source
- Wikipedia/Commons
- Credit
- Montagu, 1808
- Licence
- CC0
- 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
- Ctena orbiculata · USNM:IZ:USNM 272727
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
- 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 itCtena through timeFormations of the PleistoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. (Montagu 1808)