Problems Determining the Phylogenetic Position of Echiurans and Pogonophorans with Limited Data

Cladistics - Tập 14 - Trang 401-410 - 1998
Mark E Siddall1, Kirk Fitzhugh2, Kathryn A Coates3
1Laboratory of Phylohirudinology, Museum of Zoology, Ann Arbor, MI, 48109, U.S.A
2Los Angeles County Museum, 900 Exposition Blvd, Los Angeles, CA, 90007, U.S.A., and
3Bermuda Biological Station for Research, Ferry Reach, St. George's, Bermuda