﻿Vol. 66.~\ JURASSIC STRATA OF SOUTH DORSET. 63 



Thickness in feet inches. 



(3) ' The Red Beds or the Building- 

 Stoue.' (Q.uarrymen's terms.) 



■sauzei, (a) Dark brown, fairly ironsbot, sandy, 



Witchellia. easily worked stone about 6 



In the upper lew inches alticarinate 

 Soniiinia of the& mesacanthus type, 

 and large Emileia, cf. polyschides, 

 Waagen. About 2 feet down, 

 Sounini(S of the S.-zurcheri type, 

 Soniiinia buckmani, Haug, Pceci- 

 lomorphus macer, numerous 

 Witchcllia, Stepheoceras, Otoites 

 cf. contracta (Sow.). 

 (b) Brown ironstone with coarse 



grains, more irony than bed above. 4 



Sonninia Bluish-brown, coarsely ironsbot 



or discitce (?) oolite; more coarsely grained than 



bed above. Stepheoceras or Emileia. 3 



(4) ' The Wild Bed/ 



bradfordensis... (a) Ironsbot sandy stone, with Am- 

 monites of the Ludwigia-gradata 

 type, often in a perished condition, 

 found in irregular hollows of 

 (b). Cosmogyria subtabidata, Apc- 

 dogyria plaJuchora, A. subcornuta} 



murchisonce ... (b) Light yellow, finely ironsbot stone, 

 sometimes bluish yellow. Zeilleria 

 anglica (Oppel) at base. Wel- 

 schia obt us i for mis, Crickia refiua, 

 Hyattia pustulifera, H. icilsoni, 

 Apedogyria patellar ice, Strophogyria 

 cosmia, Kiliania armipotens, K. 

 laciniosa, Pseudographoceras litera- 

 tum (see Monograph) 1 



Ancolioceras ... (c) Light yellow, softer and less iron- 

 shot than above. Large Lytoce- 

 ratid, cf. Pqchylytoccras aalenia- 

 num about 2 



scissi (5) Grey sandy limestone. Tmetoceras 



scissum and IAocerata 3 



opaliniformis. (6 a) Brown ironshot, marly stone, with 

 Opalinoid Ammonites, cf. Cana- 

 varella 1 



(b) Sandstone with Opalinoid Ammon- 

 ites, cf. Wallceria subglabra, Rliyn- 

 chonella stephensi (cynocepliala) ... 1 8 



(<?) Sands and sandburrs. Rhyncho- 

 nella of cynocephala pattern, 

 Opalinoid Ammonites 3 8 



1 See Monograph. These Ammonites were entered as "from base of red 

 beds ' ; but it was afterwards found that this particular red bed was in hollows 

 of the Wild Bed. 



