162 MK. L. KICHAKDSOX OX THE [vol. lxxiv,. 



The Top Limestones are worked in a quarry by the side of the 

 Foss Way (22) between Dinnington and Lopen. 



Lopen. — At Lopen there is a small outlier of Inferior Oolite 

 and Fuller's Earth, but I could not find any sections. Moore's 

 species, '■Rhynclioiiella? lopensis," 1 came 'from a bed of blue Oolitic 

 Marl, occurring in the neighbourhood of Lopen. near Ilminster.' 1 



Furzy Knaps, Seavington St. Mary. — This section — which 

 must not be confused with that at Furzey Knaps, near Yeovil, 2 — is 

 in the bank by the roadside at (23). 



23. Section at Furzy Knaps. 



Thickness in feet inches* 



? Aalensis 1. Sandstone, hard, yellowish-grey; ? Gottes- 



woldia sp., Thracia sp., Rhynchonella cyno- 



cephala auctt. : seen 2 



2. Yellowish sandy marl : 2 to 4 inches 3 



Aalensis 3. Sandstones, two irregular beds, with an inter- 

 veiling deposit of marl ; Thracia sp., Pleuro- 

 m ya sp., Serpula tricarinata auctt 10 



4. Greyish-brown impure sandstone crowded 

 with ammonites — ? Canavarina venustula 

 S. Buckman, cf. Gotteswoldia crinita S. Buck- 

 man (one of the Aalensis Group), Walleri- 

 csras delicatum S. Buckman, Megateuthis 

 voltzi (Phillips), Pleurotornaria sp., Pholado- 



mya cf. acuta Agassiz, etc 4 



5. Greyish-brown and yellowish-brown- streaked 

 indurated, somewhat clayey, sand with sand- 

 burrs ; Cottesivoldia subcandida S. Buckman, 

 ?G. crinita S. Buckman, Pleydellia leura S. 

 Buckman, Pleuromya sp., Rhynchonella cyno- 

 cephala auctt., ? 'Terebratulina deslongchampsi 

 Davidson, Zeilleria aff. ichaddonensis S. Buck- 

 man, etc. : seen 5 



The specimen of ? Terebratulina deslongcliampsi Davidson was 

 collected by Mr. Charles Upton, and this appears to be the first 

 satisfactory record of its occurrence in this country." 



1 ' Rhynchonella ? lopensis ' was first described as ' Rhynchonella ? triangu- 

 laris Moore' by Davidson in 1854 ('British Fossil Brachiopoda ' Monogr. 

 Palaeont. Soc. vol. i, pt. iii — Appendix, p. 30) ; but, as the specific name was 

 occupied, Moore changed it to ' lopensis ' in 1855 (Proc. Somerset Arch. & Nat. 

 Hist. Soc. vol. v, 1855, p. 114 & pi. i, figs. 9-10). As ' Rhynchonella ? lopensis 

 Moore,' Davidson deals with and figures the species in his Monograph hi 1878 

 (' British Fossil Brachiopoda ' Monogr. Palaeont. Soc. vol. iv, pt. ii, no. 2, 

 p. 217 & pi. xvii, figs. 8-9). Mr. Buckman informs me (in litt.) that he has 

 found ' the same and allied species of this very peculiar and distinctive 

 Rhynchonellid in the Marl Bed (Garantiana Beds) of Bradford Abbas: this 

 proves the date of some Lopen deposit.' I have not met with any deposit in 

 the Inferior Oolite of this neighbourhood answering to Moore's description, 

 and it is well to bear in mind that Moore regarded the Yeovil Sands as 

 belonging to the Inferior Oolite Series (Proc. Somerset Arch. & Nat. Hist. 

 Soc. vol. xiii, 1867, pp. 141-43). They contain beds of ' blue marl ' in 

 places near their top. 



2 ' Ammonites of the Inferior Oolite Series ' Monogr. Palieont. Soc. Suppl. 

 pt. xiii (1905) pp. clxxii & clxxiv. 



•* The specimens on which Davidson founded the species came from France 

 (Ann. & Mag. Nat. Hist. ser. 2, vol. r, 1850, p. 450 & pi. xv, figs. 6-6 a). 

 Charles Moore recorded the species from the Middle Lias of Whatley, near 



