138 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I44 



ting ; phyllodes single pored with few pores, arranged in arc distinct 

 from peristome ; buccal pores near peristome. 



Comparison with other genera. — Faujasia differs from all other 

 cassiduloids in having its genital pores in the interambulacra. It is 

 most similar to Eiirypetalmn, having similar short, broad, closed 

 petals, a pointed posterior margin, inframarginal periproct, and 

 pointed bourrelets. 



Remarks. — As pointed out by Cooke (1953, p. 13), the type species 

 should have been Faujasia faujasii by virtual tautonomy. However, 

 since F. apicalis was designated the type species before any author 

 called attention to the tautonomy, it must remain the type species. 



The generic concept of Faujasia is herein restricted. In the type 

 species, the apical system and the phyllodes are so distinct from those 

 in all the other species that have been referred to Faujasia, except 

 Faujasia eccentripora Lees (1928, p. 661), that it should not be 

 considered congeneric with them. These other species are referred 

 herein to a new genus Eurypetalum. In F. apicalis the apical system 

 is most unusual in that the genital pores are widely separated from 

 the apical system, occurring deep in the interambulacra, between the 

 petals, with small interambulacral plates occurring between the pores 

 and the apical system. In the other species formerly referred to 

 Faujasia the apical system is normal, with the genital pores in the 

 genital plates. Furthermore, in F. apicalis the apical system is prob- 

 ably monobasal, whereas it is definitely tctrabasal in the other species. 

 The phyllodes in F. apicalis have very few pores, and they are 

 arranged in an arc, whereas in the other species formerly referred 

 to Faujasia there are many more pores, and they are arranged in 

 two series in each half-ambulacrum. 



Evidently, the apical system in F. eccentripora is very similar to 

 that in F. apicalis. The pores are widely separated from the rest of 

 the apical system, although Lees says that they are in the genital 

 plates. Evidently, he just presumed that the genital plates extended 

 out between the petals and included the genital pores, for he states 

 in his description that he was unable to see any plate sutures. Un- 

 fortunately, he does not figure the phyllodes, and without this infor- 

 mation his species can be referred only tentatively to Faujasia. 



Range and distribution. — Upper Cretaceous (Maestrichtian) of 

 western Europe and probably Arabia, 



