lxxx 



INFERIOR OOLITE AMMONITES. 



Fig. 39.— Radial 

 line of Brasilia 

 iradfordensis. 



XXX. Genus — Brasilia, S. Buckman. 



(Type, Brasilia bradfordensis, S. Buckman.) 



1887. Lioceras, pars, This Monogr., p. 21. 

 1899. Brasilia, 'Jvirass. Time;' Quart. Journ. Geol. Soc. 

 vol. liv, p. 458. 



Description. — Platysubleptogyral, subangustumbilicate ; [sub- 

 densiseptate, brevilatilobate ?] ; laterally subanguliradiate ; peri- 

 pherally acutanguliradiate, subparvi-nonsepti-carinate . 



Distinction. — From Welschia, more flexed radial line, orna- 

 ment of smaller character, relatively narrower whorls. 



a. Convexifastigate. 

 1. Brasilia bradfordensis (S. Buckman). Plate IV, figs. 5, 6; Suppl., 



Plate XVII, fig. 28; Fig. 39 in 

 text. 



1887. Lioceras bradfordense, This Monogr., PI. iv, figs. 5, G. 



Description. — Platysubleptogyral, gradumbilicate, parvicostate. 

 Locality and Stratum. — Dorset : Bradford Almas, in the marl overlying the 

 Paving Bed. 



Date of Existence. — Bradfordensis hemera. 



2. Brasilia sublineata, 8. Buchnan. Plate VIII, figs. 5, 6 ; Suppl., Fig. 40 in text. 



1888. Lioceras concavdm, This Monogr., PL viii, figs. 5, 6. 

 1902. Brasilia sublineata, Emend. Amm. Nom., p. 3. 



FlG. 10.— Suture-line and radial lines of Brasilia sublineata. The radial lines are from different parts 

 of the same specimen, and show progressive decline of rostration. 



