ETHOLOGICAL-TROPHIC GROUPS OF BIVALVE MOLLUSKS AND THEIR DISTRIBUTION IN THE PHANEROZOIC

Abstract

Based on their adaptations to substrates, degree of mobility, and feeding modes, bivalve mollusks are subdivided into 30 ethological-trophic groups. This paper presents an account of their morphological characteristics, distribution in the Phanerozoic, and taxonomic changes through time.