at Caldon Low, Staffs. 61 



in Davidson's monograph., 1 and in the various papers on the sequence 

 of the Carboniferous Limestone in the British Isles, has enabled us 

 to identify most of the forms. The full list of species, with 

 references, is as follows : — 



Bkachiopoda. 

 Orbiculoidea sp. 



Dielasma hastatum (Sow.). Large form. 

 Seminula ambigua (Sow.) ? Dav., pi. xv, fig. 16. 

 Athyris cf. expansa (Phil.). Cf. Dav., pi. xvii, figs. 3, 3a. 

 Martinia cf. glabra (Mart.). Dav., pi. xiii, fig. 8. 

 M. ovalis (Phil.). Dav., pi. ix, fig. 21. 

 Spirifer bisulcatus (Sow.). Dav., pi. vi, figs. 6-9. 

 S. semicircularis (Phil.). Dav., pi. vi, figs. 1-5. 

 S. aff. grandicostatus, M'Coy. Dav., pi. viii, fig. 8. 

 " Bhynchonella ' ' cf. carringtoniana, Dav. Dav., pi. xxiii, figs. 22-26; 



pi. liii, figs. 1, 2. 

 Orthotetes cf. crenistria (Phil.). 



Rhipidomella michelini (L'Eveille). Dav., pi. xxx, fig. 7. 

 Schizophoria resupinata (Mart.). Large forms. 

 Productus corrugato-hemisphericus. Including forms like P. cora, D'Orb., 



Dav., mut. Di of Vaughan, in Q.J.G.S., 1905, pi. xxv, figs. 4a, b. 

 P. cf. giganteus, Dav. (non Mart.). Dav., pi. xl, fig. 3. 

 P. longispinus, Sow. 

 P. concinnus, Sow. Cf. mut. D 2 of Sibly, Q.J.G.S., 1906, pi. xxxiii, 



figs. 3a, b. 

 P. martini, Sow. Dav., pi. xliii, figs. 7, 7a. 

 P. cf. pyxidiformis, De Kon. Dav., pi. xlii, fig. 4. 



P. cf. fimbriatus, Sow. Narrow convex forms like Dav., pi. xxxiii, fig. 14c. 

 P. fimbriato-pustulosus. 



P.punctatus (Mart.). Dav., pi. xliv, fig. 14. 

 P. cf. aculeatus (Mart.). Dav., pi. xxxiii, fig. 19. 

 P. cf. margaritaceus (Phil.). Strongly convex forms near Dav., pi. xliv, 



figs. 5, 5a. 



Other Groups. 

 Phillipsia sp. Pygidium. 

 Leiopteria sp. 

 Belleroplion sp. 



Phanerotinus cf. nudus (Sow.). 

 Fish-tooth. Cf . Psephodus magnus. 



' Near the top of the section a small, much-w r eathered, coral of 

 Zaphrentoid type was noticed, but it was impossible to extract it' 

 without considerable damage. 



The general faunal assemblage would seem to suggest that the 

 forms represented belong to some of the higher beds of the 

 •Carboniferous Limestone sequence. As in the case of the pebbles 

 these may all be derived. Comparing the above list with the faunal 

 lists given by Dr. T. F. Sibly for the Carboniferous Limestone of 

 the Midland ai-ea, 2 it will be seen that a number of species are 

 identical, more especially perhaps with those listed for the subzone 

 of Lomdalia floriformis = D2. 



Highhy fossiliferous white limestones without a trace of any 

 pebbles or extraneous material occur in the churchyai'd at the 



1 Brit. Foss. Brachiopoda, Part V : The Carboniferous Brachiopoda. Pal. 

 Soc, Lond., 1858-63. 



2 Q.J.G.S., vol. Ixiv, pp. 42 et seq., 1908. 



