2003/05/01 by Ellen E. Strong, M. G. Harasewych, Gerhard Haszprunar · 3 citations
Earth and Planetary Sciences · Engineering · Environmental Science · #Aquatic Invertebrate Ecology and Behavior #Marine Biology and Ecology Research #Marine Biology and Environmental Chemistry
paper · pdf · doi:10.1111/j.1744-7410.2003.tb00077.x
openalex publication_date 2003/05/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/22
Abstract. The superfamily Cocculinoidea is a group of marine, deep‐water, limpet‐like gastropods. Recent speculation surrounding their affinities has concentrated on their placement within the Gastropoda. However, phylogenetic relationships within the Cocculinoidea, especially the monophyly of families and genera within the group, remain poorly understood. Phylogenetic analysis of 31 morphological characters for 15 cocculinoidean taxa and 2 outgroups resulted in a single most parsimonious tree, length=70, CI=0.62, and RI=0.71. Monophyly of the Cocculinoidea, Cocculinidae, and the genera Cocculina and Coccopigya was supported; Paracocculina and Coccocrater were found to be paraphyletic. Character optimization demonstrates that many characters often cited as diagnostic of various taxa, are often homoplastic and/or synapomorphies at different hierarchical levels.