Lucina (bivalve)

Lucina is a genus of saltwater clams, marine bivalve molluscs.[1]

Lucina
Temporal range: Devonian – Present
Fossil of Lucina species from Miocene of Italy
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Subclass: Heterodonta
Order: Lucinida
Family: Lucinidae
Genus: Lucina
Bruguière, 1797
Species

See text

These bivalves are remarkable for their endosymbiosis with sulphide-oxidizing bacteria.[2]

Fossil record

Fossils of Lucina are found in marine strata from the Devonian until the Quaternary (age range: from 388.1 to 0.012 million years ago).[3]

Selected species

Characteristics

The members of the genus Lucina, as other members of the family Lucinidae, are found in muddy sand or gravel at or below low tide mark. They have characteristically rounded shells with forward-facing projections. The valves are flattened and etched with concentric rings. Each valve bears two cardinal and two plate-like lateral teeth. These molluscs do not have siphons but the extremely long foot makes a channel which is then lined with slime and serves for the intake and expulsion of water.[5]

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References
  1. Biolib
  2. Taylor, J. D.; Glover, E. A. (2006-11-24). "Lucinidae (Bivalvia) - the most diverse group of chemosymbiotic molluscs". Zoological Journal of the Linnean Society. 148 (3): 421–438. doi:10.1111/j.1096-3642.2006.00261.x. ISSN 0024-4082.
  3. Paleobiology Database
  4. Olsson, Axel; Harbison, Anne (1953). Pliocene Mollusca of Southern Florida with special reference to those from North Saint Petersburg. Philadelphia: Academy of Natural Sciences.
  5. Barrett, J. H. and C. M. Yonge, 1958. Collins Pocket Guide to the Sea Shore. P. 161. Collins, London
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