150 Geological Society. 



preceded the refinement of the features and the somatic characters 

 in general. 



There are no grounds whatever for supposing that this simian 

 jaw and human brain-cast did not belong to one and the samo 

 individual, who was probably a right-handed female. 



January 22nd, 1913.— Dr. Aubrey Strahan, F.R.S., President, 

 in the Chair. 



The following communications were read: — 



1 . ' The Fossil Flora of the Cleveland District of Yorkshire : 

 I — The Flora of the Marske Quarry.' By H. Hamshaw Thomas, 

 M.A., F.G.S. With Notes on the Stratigraphy, by the Rev. 

 George John Lane, F.G.S. 



In this paper the Author describes several plants collected by 

 the Rev. G. J. Lane and Mr. T. W. Saunders in the Cleveland 

 district of Yorkshire, which were sent to Cambridge for examina- 

 tion. Other specimens described were obtained by the Author from 

 the Marske Quarry and by the late Mr. Hawell, whose collection is 

 now in the Dorman Memorial Museum, Middlesbrough. 



The following species are dealt with: — Equisetites columnaxis 

 Brongn., Sagenoptteris pliiUipsi (Brongu.) var. major Sew., Laccopteris 

 polypodioides Brongn., Dictyophyttum rugosum L. & H., Stachypteris 

 halleri, a new type recently described by the Author, Coniopteris 

 Tiymenophyttoides Brongn., and C. quinquelobq (Phill.), Todites 

 williamsoni (Brongn.), Cladophlebis denticulata Brongn.. a new 

 species of Marattlopeis (a genus not hitherto recorded from York- 

 shire), Williamsonia spectabilis Nath. (microsporophylls of which 

 were found by the Author, throwing additional light on this type 

 of flower), W. whitbiensis Nath., and a female strobilus identified as 

 IP", sp., Zamites ( Williamsonia) gigas L. & PL, Psilophyllum ( W.) 

 pecten (Phill.), Tamiopteris vittata Brongn., T. major L. & H., 

 T. sp., Wielandiella nilssoni (Phill.) formerly known as Anomozamites 

 nilssoni, Otozamites feistmanteli Zigno, 0. graphieus (Leek, ex Bean 

 MS.), Dictyozamites hawelli Sew., a Cycadean stem classified 

 as Wielandiella sp., Ndssonia mediana (Leek, ex Bean MS.), 

 N. orientalis Heer, a new species of Pseudoctenis (a genus recently 

 founded on specimens of Cycadean fronds from the Upper Jurassic of 

 Sutherland), Ginkgo digitata (Brongn.), Baieria longifolia (Pomel), 

 Czehanowshia murrayana (L. & H.), Ehttides setosa (Phill.), and 

 Taxitts zamioides (Leek, ex Bean MS.). 



The Marske flora, which includes several types not hitherto 

 recorded from the Jurassic plant-beds of Yorkshire, is believed to 

 be of Middle Jurassic age : specimens previously identified as 

 Zamites bvekianus (Ett.) and Nilssonia sehaumbergensis (Dunk.), 

 AVealden species, are described respectively as a new species of 

 Pseudoctenis and A'ilssonia orientalis Heer. 



A note is appended by the Rev. G. J. Lane on the stratigraphy 

 of the Marske Quarry, situated on the northern face of the 

 Upleatham outlier, about a mile distant from Marske-by-the-Sea. 

 The Marske beds are assigned to the Lower Estuarine Series. 



