Fig. 2: Internal anatomy of Youti yuanshi.
YKLP 12387. a,b, Virtual dissections of dorsolateral trunk, looking posteriad, showing internal structure of tenth (a) and eighth (b) digestive glands, oblique membrane within peripheral cavity and ligaments associated with gut. c, Virtual dissection through 14th digestive gland, looking anteriad, showing connection of digestive glands to dorsal gut. d, Virtual dissection showing blind termination of posterior gut; dashed line marks anterior limit of gut preservation. e–g, Disposition of chambers within trunk appendages, showing extensions of perivisceral and peripheral cavities into appendage. Virtual dissections oriented parallel (e), oblique (f) and subperpendicular (g) to appendages. A, anterior; P, posterior. Colour scheme as in Fig. 1. dgp, digestive gland process; lac, lacuna of the ventrolateral sinus. Scale bars, 100 μm.
