A. E. Trueif)ian — lice Lias of South Lincolnshire. 71 



these clays to be about 700 feet, but yielded insufficient fossil 

 evidence to determine the thickness of the zones. ^ 



Bottesford. — Brickyard 400 yards north-east of the church. 



Although tlie brickearth used here is of alluvial origin, Professor 

 Swinnerton in 1915 found in a small exposure at the eastern end of 

 the yard a limestone with Corotticeras BucJdandi, which had not 

 previously been found in this area, although it had been recorded in 

 North Lincolnshire.- In 1916 the section was as follows: — 



ft. in. 

 Grey earthy limestone, yellow outside, with C. Bucldandi 

 Blue clay .... 

 Yellow-grey earthy limestone 



Blue clay 



Blue earthy limestone 



Fossils. 



Fish teeth. 



Coroniceras Bucklandi, Sow. 



Gryphea (?) arcuata, Lam. 



Hippopodium ponderosiim, Sow. 



Lima gigantea, Sow. 



Modiola sp. 



Ostrea liassica, Str. 



Pecten sp. 



Pleuromya sp. 



Echinoid spines. 



Pentacrimis cf. scalaris, Goldf. 



Cytheridea spp. 



Glandulina paucicosta, Boem. 



Marginulina picta, Terq. 



An interesting feature of the fauna is the presence of numerous 

 ostreaform Lamellibranchs, varying in development from the pro- 

 dissoconch to adult stages. 



Sedgehrook. — Brickyard 400 yards north of Sedgebrook Station. 



The exposure shows the following : — 



Feet. 

 Soil; etc 2 



Blue clay, weathering yellow, with impersistent ferruginous 



limestones and shell beds ....... 6 



Fossils. 



Arnioceras cf. semicostatum, Y. &B 



A. cf. ceras, Agass. 

 Beleinnites acutus, Mill. 



B. cf. breviformis, Voltz. 

 Amberleya elegans, Miinst. 

 Trochus JRedcarensis , Tate. 

 T. sp. 



Turbo sp. 



Area sp. 



Arcomya hispida, T. & B. 



Astarte aff. striato-sulcata, Eoem. 



Gryphea obliqua, Sow. 



G. arcuata. Lam. 



G. arcuata (a wide variety). 



G. cf. cymbium, Lam. 



Kippopodiuyn ferri, Cross-Ether. 



Lima (Plagiostoma) gigantea, Sow. 



L. (P.) punctata. Sow. 



L. (P.) aff. succincta, Sch. 



Limea acuticosta, Miinst. 



Macromya sp. 



Modiola bifasciata, Tate. 



Nucula aff. palmcB, Sow. 



Ostrea goldf ussi, Bronn. 



0. sp. 



Pecten cf . mqualis, Qu. 



P. calvus, Goldf. 



P. lunularis, Eoem. 



P. cf. priscus, Sch. 



P. textorius, Sch. 



Pholadomya aff. glabra, Agass. 



Pinna Hartmanni, Ziet. 



Serpula sp. 



Rhynchonella calcicosta, Qu. 



Echinoid spines. 



Cytheridea ellipsoidea, Jones. 



C. Moorei, Jones. 



C. aff. elongata, Blake. 

 Dentalina cf. funiculosa, Terq. 



D. {?) pauper ata, d'Orb. 

 Frondicularia. Terquemi, d'Orb. 

 Lingulina tenera, Borne. 

 Marginulina picta, Terq. 



Vaginulina anomala, Blake. 

 Water-supply of Lincolnshire (Mem. Geol. Surv.), 1904, pp. 63, 101. 

 By F. M. Burton ; see Geology of Lincoln (Mem. Geol. Surv.), 1888, p. 19. 



