ZONE OP ARIETITES BUCKLANDI. 



39 



■ 



-8 



a 

 .2 



ft; 



No. 



Pathology. 



Thick- 

 ness. 



Organic Remains. 



5 

 6 



7 



8 

 9 



10 

 11 



12 

 13 



14 



15 

 16 



17 



18 



19 

 20 



21 



22 

 23 

 24 



25 

 26 



27 



28 



29 

 30 

 31 



32 



Dark-grey limestone 



Black shales, with partings of gypsum 



Dark-greyish limestone 



Dark shale 



ft. 

 1 



2 







2 

 1 



2 

 



3 

 1 



1 





 1 







1 





 





 



1 

 1 



1 





 





 

 

 







in. 

 



6 



10 





 3 







6 



6 

 



6 



10 

 3 



6 

 6 



8 

 10 



8 

 4 

 

 4 



6 

 6 



8 



4 

 8 

 6 

 9 



7 



Lima gigantea, Sow., L. antiquata, Sow., 

 and Rhynchonella variabilis, Schloth. 



Ichthyosaurus communis, Conyb. (in the 

 " fire-stone beds " west of the Cobb). 



Lima gigantea, Sow., L. antiquata, Sow., 

 and Rhynchonella variabilis, Schloth. 



Gryphcea arcuata, Lamk. 



Fin-spines of Hybodus, Rhynchonella varia- 

 bilis, Schloth, and Pentacrinus tubercu- 

 latus, Mill. 



Icthyosaurus platyodon, Conyb. 



Spines of Pseudo-diadema, and other JEchi- 

 nidce. 



Ichthyosaurus platyodon, Conyb. 



Gryphcea arcuata, Lam., Rhynchonella vari- 

 abilis, Schloth, and Lima antiquata, Sow. 



Ichthyosaurus communis, Conyb., /. platy- 

 odon, Conyb., Pentacrinus tuber culatus, 

 Mill., and Lima gigantea, Sow. 



Gryphcea arcuata, Lam., and fragments of 

 Pentacrinus tuberculatus, Mill. 



Otopteris obtusa, L. & H., and Araucarites 

 peregrinus, Sternb., in the plant-bed. 



Arietites Conybeari, Sow., and Rhyncho- 

 nella variabilis, Schloth. 



Gryphcea arcuata, Lam. 



Arietites Buchlandi, Sow., and Ar. roti- 

 formis, Sow. 



Ichthyosaurus tenuirostris, Conyb. 

 Ichthyosaurus communis, Conyb., skulls and 



bones of other species, with Rhynchonella 



variabilis, Schloth. 

 Ichthyosaurus communis, Conyb., and 7. in- 



termedius, Conyb. 

 Arietites Buchlandi, Sow., and Lima 



gigantea, Sow. 

 Gryphcea arcuata, Lam., and Rhynchonella 



variabilis, Schloth. 



Aegoceras angxdatum, Schloth. 

 Lima gigantea, Sow., and L. antiquata, Sow. 

 Aegoceras angxdatum, Schloth. (large speci- 

 mens with small Gryphsea adherent). 

 Gryphcea arcuata, Lam., small and dwarfed. 

 Lima gigantea, Sow., and L. antiquata, Sow. 



Hard grey limestone. " Grey Ledge" 



Dark shaly marls 



Grey limestone 



Dark indurated shale 



Bluish limestone 



Dark shales, containing indurated im- 

 perfect limestone 



Bluish limestone 



Dark indurated clay 



Grey limestone, with the plant-bed at 



the top 



Dark-bluish limestone 



Dark shale 



Dark-greyish limestone 



Dark shale 



Grey limestone 



Dark shale 



Dark greyish limestone 



Hard shale, forming "Quick Ledge" 



Blue limestone 



Dark shale 



Concretionary limestone (surface mam- 



millated) 



Dark-grey shale 



Greyish limestone 



Dark indurated shale 



Hard grey limestone 



The shingle of the shore covers the lower beds of the Angulatum series. 



Coast of Glamorganshire. — In Glamorganshire there is an extensive exposure of the 

 J3ucklandi-heds for the distance of sixteen miles along the coast, from Penarth Head, 



