brachiopod

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Related to lamp shell: Tunicates

brachiopod

or

lamp shell

any marine invertebrate animal of the phylum Brachiopoda. They were the dominant marine forms of PALAEOZOIC and MESOZOIC times and a few species survive. See BIVALVE.
References in periodicals archive ?
The lamp shells, acorn worms and peanut worms include organisms that burrow in sediments of marine and estuarine habitats worldwide.
In this study we followed Cutler (1994) and Emig (1983, 1997) morphological criteria for the identification of the peanut worms as Sipunculus nudus and Apionsoma trichocephalus, and the lamp shells as Glottidia audebarti and G.
The lamp shells, on the other hand, never recovered.