Complex sentence: Work continues on assessing the true affinities of hederelloids, but they appear to be most closely related to phoronids and other lophophorates (Taylor and Wilson, 2008).
Split into simpler sentences: Work continues on assessing the true affinities of hederelloids. They appear to be most closely related to phoronids and other lophophorates (Taylor and Wilson, 2008).