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LAMP SHELLS [1 record]

Filter results by subject field Alphabetical list of terms

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Alphabetical list of terms

Record 1 2006-08-10

English

Subject field(s)
  • Marine Biology
  • Paleontology
DEF

A group (phylum) of marine invertebrates with a two-valved shell ... very abundant in the oceans of the Paleozoic Era.

OBS

These sea creatures have two shells called valves. One valve is usually larger than the other. The top of one valve will curl over the top of the second. This gives them an "oil lamp" shape.

French

Domaine(s)
  • Biologie marine
  • Paléontologie
DEF

Classe d'Invertébrés lophophoriens exclusivement marins, caractérisés par une coquille bivalve.

OBS

La valve ventrale est percée à la partie antérieure d'un orifice qui permet à l'animal de se fixer par un ligament. Les branchies sont enroulées en spirale. Ce groupe, largement représenté aux temps géologiques, ne comprend plus actuellement que quelques formes comme les Térébratules.

Spanish

Campo(s) temático(s)
  • Biología Marina
  • Paleontología
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