238 



ME. T. ROBERTS ON THE UPPER JURASSIC ROCKS 



ft. n. 



8. Brecciated limestones 4 0 



7. Thick limestones, slightly oolitic 14 0 



6. Reddish, oolitic limestones 12 0 



5. Compact, oolitic limestone 19 0 



4. Well-bedded, reddish limestone, very compact... 15 0 



3. Grey limestones 22 0 



2. Thin-bedded limestones, marly at base and 



crowded with fossils , 30 0 



1. Oolitic limestones 28 0 



(Below this the section was not well exposed.) 



At Angolat, about three quarters of a mile west of Soyhiere, there 

 is a good section in the marls and also in the beds immediately over- 

 lying and underlying them. They are also exposed at Montchai- 

 beut, Thiergarten, and Bassecourt ; and Astartian limestones are also 

 seen above the Corallian at St. Ursanne. 



The Astartian is largely quarried at Laufon, where the lime- 

 stones are for the most part oolitic; fossils are not abundant in 

 these beds. 



The fossils in the accompanying list were principally obtained 

 from the marls. 



Astartian Fossils. 



Belemnites astartinus, Et 



Natica turbiniformis, Rom 



hemisphasrica, Rom 



Phasianella striata, Sow 



N erineea GrosaB, Rom 



Pholadomya complanata, Rom. 

 paucicosta, Ag. 



Cyprina tenuirostris, Et 



Cardium fontanum, Et 



Trigonia supraj urensis, Ag. . . 



Mytilus longssvus, Et 



Lima astartina, Th 



Pecten lens. Sow 



Ostrea sequana, Th 



Exogyra nana, Sow 



Terebratula humeralis, Rom. 



Bauhini, Et 



supraj urensis, Thitrm... 



moravica, GlocTc 



Rhynchonella inconstans, Sow 



— — helvetica, d' Orb 



Oidaris non'gemma, Phil 



Hemidiadema stramonium, Ag. (Cour- 

 rendlin.) 



Pseudodiadema neglectum, Tharm. . . . 

 Pedina subkevis, Ag. (Rebeuvelier. ) 

 Apiocrinus Meriani, Des 



o 



"QD 



a 

 | 



o3 



3 



CD 

 -D 



*c3 



o 

 O 



6D 

 Ph 

 13 

 O 



f-i 



o 



Eh 



O 

 ■—< 



o 



3 



o 

 d 



a 



. i— t 

 -a 



c 

 w 



