Tellinoidea
| Tellinoidea | ||||||||||||
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Tellina albicans |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Tellinoidea | ||||||||||||
| de Blainville , 1814 |
The Tellinoidea are a very species-rich superfamily of marine mussels from the order of the Cardiida . The superfamily Tellinoidea occurs for the first time in the Upper Triassic .
features
The housings with the same flaps are small to medium-sized. They are predominantly rounded-triangular in outline, more or less clearly transversely ovoid or transversely elliptical, and approximately transversely rectangular shapes also occur. The housings are often approximately equilateral or also strongly unequal. the vertebrae can be in front of or behind the midline. The vertebrae are comparatively small, flat and not very protruding. They are only slightly curled forwards, in some groups they are also curled backwards. The lock consists of two main teeth in each valve and some lateral teeth, which can also be reduced or missing. The ligament lies externally on nymphs behind the vertebrae. In some groups there is also an inner, triangular resilium. The surface line is always indented to a greater or lesser extent. The two sphincters are usually about the same size, but often have a very different outline. The siphons are separate. In addition, cross-shaped siphon retractor muscles are present.
The aragonitic shell is usually thin and rather brittle. It consists of an outer layer with prismatic microstructures, a middle layer consisting of crossed lamellas and an inner layer of complex crossed lamellas or a homogeneous layer. The surface is smooth or often only provided with weak growth strips parallel to the edge, which are rarely reinforced like ribs. In contrast, there are often radial color patterns. The periostracum is often just a thin, organic coating that is easily peeled off or eroded.
Geographical distribution, habitat and way of life
The superfamily is common worldwide. However, the focus of diversity is in the warmer seas.
Most of the Tellinoidea species are active, digging suspension filter feeders in soft soils, or they pipette off the sediment surface with the help of the inflow siphon. Most species live in shallow marine areas.
Taxonomy
The taxon was founded in 1814 by Henri Marie Ducrotay de Blainville as tellinacées . The taxon was also ascribed to de Blainville after the Latinization, so that de Blainville is considered the author of the taxon even according to today's nomenclature rules. The name is now available as a superfamily name, surname and subfamily name and as a tribe name. The MolluscaBase accepts the taxon as valid.
- Tellinoidea Blainville, 1814
- Luggage clams (Donacidae Fleming, 1828)
- Icanotiidae Casey, 1961 †
- Sand mussels (Psammobiidae Fleming, 1828)
- Quenstedtiidae Cox, 1929 †
- Pepper shells (Semelidae Stoliczka, 1870 (1825))
- Solecurtidae d'Orbigny, 1846
- Sowerbyidae Cox, 1929 †
- Tancrediidae Meek, 1864 †
- Tell clams (Tellinidae Blainville, 1814)
- Unicardiopsidae Chavan, 1969 †
literature
- Michael Amler, Rudolf Fischer & Nicole Rogalla: Mussels . 214 pp., Haeckel-Bücherei, Volume 5. Enke Verlag, Stuttgart 2000 ISBN 3-13-118391-8 (pp. 107, 109)
Individual evidence
- ^ Henri Marie Ducrotay de Blainville; Mémoire sur la classification méthodique des animaux mollusques, et établissement d # une nouvelle considération pour y parvenir. Bulletin des Sciences par la Société Philomatique de Paris, 1: 175-180, Paris 1814 Online at www.biodiversitylibrary.org (p. 179)
- ↑ MolluscaBase: Tellinoidea