73 



THE LIAS AMMONITES. 



No. 



LiTHOLOGY. 



Thick- 

 ness. 



Organic Remains. 



57 



58 



59 

 60 



Blue shale 



Scattered irregular doggers and blue 

 shale 



ft. in. 

 3 



3 



4 

 8 6 



Aegoceras armatum. 



Ariet. tar deer escens, Pecten calvus, Pecfen suh- 

 Bestriatus, Cucullcea Miinsteri. 



Aeg. armatum, Ar. Macdonnelli = Nodotianus, 

 Belemnites elegans, Pentacrinus, L. acuticosta. 



1 



Argillaceous ironstone dogger with cone- 

 in-cone structure at top 



Blue shale, estimated at 





Base of the Armatum zone. 





Total thickness 



225 8 



Warwickshire. — The Jamesoni and Ibex beds are developed at Eenny Compton, 

 Warwickshire, where they have been carefully studied and well described by Mr. T. 

 Beesley, F.C.S., of Banbury.^ The rocks are about 100 feet in thickness, and the 

 following section affords an idea of their petrology, thickness, and organic remains. 



No. 



Petrology. 



Thick- 

 ness. 



Organic Remains. 



1 

 2 

 3 

 4 



5 



6 



7 

 8 



9 

 10 



11 

 12 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 



Rough shaly clay 



Band of nodules, argillo-calcareous ... 



Shale 



Band of fossiliferous nodules 



Shale 



Band of fossiliferous nodules 



Beleninite shale 



ft. in. 



20 



2 



10 



3 



8 



2 



2 



1 



4 6 



1 8 

 3 



3 

 3 



14 

 2 



5 

 2 

 3 6 

 2 



22 



Aeg. striatum, Amal. Ibex, Aeg. Maugenesti, Aeg. 

 Valdani. 



Aeg. Maugenesti, Fucoids. 



Belemnites bren/ormis, and several others. 



Aeg. Jamesoni, Aeg. Valdani, Belemnites clavatus, 



Lima Hettangiensis, Spiriferina verrucosa, 



Waldheimia numismalis, Rhynchonella rimosa. 

 Belemnites clavatus, B. apicicurvatus. 

 Aeg. armatum, Pecten priscus, Limea acuticostata, 



Gryphcea obliquata, Cardinia attenuata, Rhyn. 



rimosa, Montlivaltia mucronata. 



Pecten calvus, Terebrat. punctata, var. Rad- 

 stockiensis, David. 



Rough, shelly, argillaceous limestone, 

 with numerous fossils 



Belemnite shale 



Rough, shelly, argillaceous limestone, 

 with many fossils 



Shale 



Nodular band 



Shale 



Band of fossiliferous nodules 



Shale 



Band of nodules 



Shale 



Band of nodules 



Shale 



Band of nodules 



Shale 



96 3 



1 " Lias of Fenny Compton, Warwickshire." 

 Nat. and Archseol. Field-Club,' p. 14, 1877. 



Reprinted from the ' Proceedings of the Warwickshire 



