252 



PBOCEEDINGS OP THE GEOLOGICAL SOCIETY. 



[Feb. 



Cucullsea, new sp. ? 

 Lucina, new sp. ? 

 Modiola imbricata, Sow. 



Lonsdalei, Mor. Sf Lye. 



subreniformis, Mor. fy Lye. 



sp.? 



Opis lunulatus, Sow. sp. (a variety). 

 Unicardium, sp. ? 



Rhynchonella sub-decorata, Dav. 

 Terebratula ovoides, Sow. 



perovalis, Sow. 



— — sub-maxillata, Sow. 



Actseon Sedgvici, Phil, spi 



Alaria trifida, Phil. 

 Natica, sp. ? (small). 

 Nerinaea cingenda, Bronn. 



triplicata, Bronn. 



Trochus, sp. ? (young). 



Ammonites Murchisonae, Sow. 



■ • , var. corrugatus, Sow. 



Nautilus clausus, d'Orb. 

 Belemuites Bessinus, d' Orb. 



Serpula, sp. ? 



Cidaris Wrightii, Desor. 



Returning towards Stamford — below the freestone bed of the 

 " Lings," is a very close and brittle marly limestone, in which 

 Rhynchonella Crossii, Walker, occurs. Below this, are the series of 

 marly and crystalline beds of the Lincolnshire Limestone exposed in 

 Tinkler's and Squires's quarries, having a thickness of about 29 feet ; 

 some of them very fossiliferous, and containing zones of coral. A 

 particular bed (containing much coral, many Nerincece, and other 

 fossils), very crystalline, and taking a high polish, was formerly 

 called the " Stamford Marble," and was much used for chimney- 

 pieces. The bed is still present in the section, but its mineral con- 

 ditions are so altered as to unfit it for its former uses. In Squires's 

 quarry (which nearly adjoins Tinkler's), a soft marly bed is thickly 

 developed, and yields a very fine cream-coloured stone, easily 

 worked, and (under the name of the " Stamford Stone ") much used 

 for chimney-pieces and for the interior carved work of churches. 

 It contains many fossils, often in fine condition ; many examples 

 of a large Natica and of a very large Lima, and a beautifully pre- 

 served frond of a cycadaceous plant, have been obtained. 



Fossils from the Marly Bed of Squires's Quarry. 



Hinnites abjectus, Phil. sp. 

 Lima cardiiformis. Sow. 



Etheridgii, Wright. 



impressa, Mor. 8$ Lye. 



proboscidea, Sow. 



Pontonis, Lycett. 



Eodburgensis, Lycett, M.S. 



, large sp. (allied to L. grandis, 



Homer) ? 



, large sp. ? 



Pecten aratus, Waagen. 



arcuatus, Sow. 



clathratus, Bomer. 



Area, large sp. ? 

 Astarte elegans, Sow. 



recondita, Phil. 



Cardium Buckmani, Mor. 8c Lye. 



subtrigonum, Mor. 8f Lye. 



Ceromya Bajociana, d' Orb. 



Ceromya similis, Lycett. 

 Cuculltea elongata, Sow. 

 Cypricardia Bathonica, d' Orb. 

 Cyprina Jurensis, Gold/., sp. 



Loweana, Mor. §• Lye. 



Lucina Bellona, d' Orb. 



despecta, Phil. 



Wrigbtii, Oppel. 



Macrodon Hirsonensis, d'Orb. sp. 

 Modiola Sowerbyana, d' Orb. 

 Myacites securiformis, Phil. sp. 

 Mytilus fureatus, Goldf. 

 Pboladomya Dewalquea, Lycett. 



Heraulti, Ag. 



Pboladomya lyrata, Sow. 



ovalis, Sow. 



■ OTulum, Ag. 



,sp.? 



Tancredia asiniformis, Phil. 



