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NEW YORK STATE MUSEUM 



Caryocrinus ornatus Say (Fig. 46) (Hall. 1852. Pal. N. Y. 

 2:216, pi. 49 and 49A) 



Distinguishing characters. Stem of larger and smaller joints alter- 

 nating near the calyx; edges of joints thin and sharp, sometimes 

 slightly crenulated or denticulated; articulating surface radiately 

 striate halfway to the center; canal round; calyx ovoid to sub- 

 globose, the greatest diameter usually below th.e middle; summit 



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Fig. 46 Caryocrinus ornatus 



slightly convex with arms sometimes several inches long; jpper 

 margins of radial and interradial plates indented for the arm plates. 

 Mural pores represented on the exterior of the plates by single or 

 double rows of tubercles radiating from the centers of the plates to 

 their angles; between these are numerous rows of smaller tubercles 

 parallel to the sides of the plates. 



