72 



THE LIAS AMMONITES. 



No. 



LiTHOLOGV. 



Thick- 

 ness. 



Organic Remains. 



57 



58 



59 

 60 



Blue shale 



Scattered irregular doggers and blue 



shale 



Argillaceous ironstone dogger with cone- 

 in-cone structure at top 



Blue shale, estimated at 



ft. in. 

 3 



3 



4 

 8 6 



Aegoceras armatum. 



Ariel, tardecrescens, Pecten calvus, Peclen suh- 

 Bestriatus, Cueullcea Milnsteri. 



Aeg. armatum, Ar. Macdonnelli = Nodotianus, 

 Belemnites elegans, Pentacrinus, L. acuticosta. 





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 



Eough shaly clay 



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 breviformis, 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, 



Gryphaa obliquata, Cardinia attenuata, Rhyn. 



rimosa, Montlivaltia mucronata. 



Pecten calvus, Terebrat. punctata, var. Bad- 

 stoekiensis, David. 



Band of nodules, argillo-calcareous ... 

 Shale 



Band of fossiliferous nodules , 



Shale 



Band of fossiliferous nodules 



Belemnite shale 



Kough, 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." Reprinted from the ' Proceedings of the Warwickshire 

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



