Limopsidae
| Limopsidae | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Limopsidae | ||||||||||||
| Dall , 1895 |
The Limopsidae are a family of mussels from the order of the Arcida . The representatives of the family live mainly in deeper and cooler water. The oldest finds come from the Lower Cretaceous .
features
The housings with the same flaps are medium to large in size. They are round, egg-shaped or approximately triangular and usually strongly narrowed at the sides. The housings are almost on the same side until they are clearly extended towards the rear (oblique, egg-shaped shapes). The vertebrae are comparatively small and not very prominent. They are rolled up perpendicular to the longitudinal axis of the housing or towards the front.
The externally located ligament lies in front of and behind the vertebrae; often there is also a resilifer located centrally deep under the vertebrae . The lock plate is usually relatively wide and strong. The upper edge of the lock plate is often straight, the lower edge more or less arched, or the lock plate is arched as a whole. The taxodontic lock has two, mostly non-mirror-image series of comparatively large and few teeth, which are often separated from each other by the resilifer or a tooth-free area. There are two sphincters; however, the anterior sphincter is significantly smaller and greatly reduced. The surface line is not indented.
The shell is aragonitic with an outer layer consisting of cross lamellas and an inner layer consisting of complex cross lamellas. The ornamentation consists of radial, reticulated or concentric elements. The periostracum is thick, silky-shiny or pulled out into hair or bristles.
Geographical distribution and habitat
The family is spread around the world. They live in warmer and shallow waters as well as in deeper and cooler water.
They are attached with byssus or lying freely on the sediment without byssus. A few forms also live buried shallowly in the sediment.
Taxonomy
The taxon was founded in 1895 by William Healey Dall . It is widely recognized today.
- Limopsidae Dall, 1895
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Aspalima Iredale, 1929
- Aspalima cristata (Jeffreys, 1876)
- Cosmetopsis Rovereto, 1898 †
- Empleconia Dall, 1908
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Limopsis Sassi, 1827
- Limopsis aurita (Brocchi, 1814)
- Limopsis tenella Jeffreys, 1876
- Nipponolimopsis Habe, 1951
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Oblimopa Iredale, 1939
- Oblimopa multistriata (Forsskål in Niebuhr, 1775)
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Paracratis M. Huber, 2010
- Paracratis minuta (Philippi, 1836)
- Pectunculina d'Orbigny, 1844
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Aspalima Iredale, 1929
literature
- Michael Amler, Rudolf Fischer & Nicole Rogalla: Mussels . Haeckel-Bücherei, Volume 5. Enke Verlag, Stuttgart 2000 ISBN 3-13-118391-8 (p. 78, Superfamily Limopsacea).
- Eugene V. Coan, Paul Valentich-Scott: Bivalve Seashells of Tropical West America marine Bivalve mollusks from Baja california to Northern Perú. Part 1. Santa Barbara Museum of Natural History, Santa Barbara 2012 ISBN 978-0-936494-43-2 (pp. 207–11)
- Rudolf Kilias: Lexicon marine mussels and snails. 2nd edition, 340 pages, Verlag Eugen Ulmer, Stuttgart 1997 ISBN 3-8001-7332-8 (p. 171)
- Norman D. Newell: Limopsidae Dall, 1895. In: Raymond C. Moore (Ed.): Treatise on invertebrate paleontology Pt. N: Mollusca 6. Bivalvia (1 of 3). N264-N267, Boulder, Colorado, Geological Society of America & University of Kansas Press 1969.
- Fritz Nordsieck : The European sea shells (Bivalvia). From the Arctic Ocean to Cape Verde, the Mediterranean Sea and the Black Sea. 256 p., Gustav Fischer Verlag, Stuttgart 1969 (p. 27)
- Guido Poppe. Yoshihiro Goto: European Seashells Volume 2 (Scaphopoda, Bivalvia, Cephalopoda) . 221 pp., Verlag Christa Hemmen, Wiesbaden 1993 (2000 unc. Reprint), ISBN 3925919104 (p. 136)
Individual evidence
- ^ Rowan J. Whittle, Katrin Linse, Huw James Griffiths: The fossil record of Limopsis (Bivalvia: Limopsidae) in Antarctica and the southern high latitudes. Palaeontology, 54 (4): 935–952, 2011 PDF (ResearchGate)
- ↑ P. Graham Oliver: The functional morphology and evolution of Recent Limopsidae (Bivalvia, Arcoidea) . Malacologia, 21 (1-2): 61-93, 1981 online at www.archive.org
- ^ William Healey Dall: Contributions to the Tertiary Fauna of Florida, with especial reference to the Miocene silex-beds of Tampa and the Pliocene beds of the Caloosahatchie River. Part 3. A new classification of the Pelecypoda. Transactions of the Wagner Free Institute of Philadelphia, 3 (3): 483-570, Philadelphia 1895 Online at www.biodiversitylibrary.org (p. 517)
- ↑ MolluscaBase: Teredinidae Rafinesque, 1815