Extant comatulid (stalkless) crinoids consist of approximately 530 species, classified in 143 genera and 18 families (Clark, 1931, 1941, 1947, 1950; Clark and Clark, 1967; Messing and White, 2001). Recent comatulids account for almost 85% of all the extant crinoid species (comatulids plus stalked crinoids), and their taxonomy is currently being extensively revised (e.g., Hoggett and Rowe, 1986; Rowe et al., 1986; Messing and White, 2001). In stark contrast to such a high extant diversity, records of fossil comatulids are far less common. This is partly due to their low...
KIIMETRA MIOCENICA, A NEW GENUS AND SPECIES OF THE FAMILY CALOMETRIDAE (ECHINODERMATA: CRINOIDEA) FROM THE MIDDLE MIOCENE OF SOUTHWESTERN JAPAN
* Corresponding author. Present address: Misaki Marine Biological Station, University of Tokyo, 1024, Koajiro, Misaki, Miura, Kanagawa 238-0225, Japan, <firstname.lastname@example.org>
TOMOKO F. SHIBATA, TATSUO OJI; KIIMETRA MIOCENICA, A NEW GENUS AND SPECIES OF THE FAMILY CALOMETRIDAE (ECHINODERMATA: CRINOIDEA) FROM THE MIDDLE MIOCENE OF SOUTHWESTERN JAPAN. Journal of Paleontology ; 81 (2): 397–404. doi: https://doi.org/10.1666/0022-3360(2007)81[397:KMANGA]2.0.CO;2
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