Fig. 8 in Functional morphology and modifications on spine growth in the productid brachiopod Heteralosia slocomi

Fig. 8. Detail of spines of productid brachiopod Heteralosia slocomi King, 1938; Moorman Ridge, White Pine County, Nevada, USA; middle Desmoinesian (Moscovian). A. UCMP 155658, external view of the posterior region of a ventral valve attached to a bryozoan colony. B. UCMP 155658, internal view of a ventral valve, with spines attached to the same bryozoan colony as in A. Arrows point to changing orientation towards the ring structures within a bryozoan colony. Scale bars 1 mm.