228 



THE PRESENT STATE OF OUR KNOWLEDGE OF 

 CARBONIFEROUS GEOLOGY. 



Dr. WHEELTON HIND, F.R.C.S., F.G.S. 



[^Cojitinued from page i/o). 



BELGIUM. 



In Belgium the Visean Limestones have long been known 

 to yield a characteristic fauna, now recognised as corresponding 

 very perfectly with that of the Upper Dihunophyllum zone. 

 In the Valley of the Meuse and Sambre, and at Clavier, these 

 beds are succeeded by a Series of black shales, cherts, and thin 

 limestones, which yield a characteristic Pendleside fauna. 

 A fine section at Bioul, North-west of Dinant, shews the junction 

 of the Dibuno phyllum zone and Pendleside Series. The passage 

 is a gradual one from a lithological standpoint, limestones 

 gradually becoming replaced by shales. 



The Pendleside fauna I obtained here in a short time is 



as follows : — 



Listracanthus beyrichi. 

 Phillipsia sp. 



Chonetes aff. Laguessiana. 

 Camarophoria papyracea. 

 Prodiictus plicatus Sarres. 

 Spirifer bisidcata. 

 Athyris platiosulcata. 

 Orbiculoidea nitida. 

 Lingida mytiloides. 



Some few years ago I was invited by Mr. Dupont. then in 



char e of th i Musee de I'histoire Naturelle at Brussels, to examine 



and report on fossils collected by officers of the Service du carte 



from Clavier. Among others, the following typical species 



occurred : — 



Posidonomya membranacea. 

 Posidoniella laevis. 

 Pseiidamusuni fibrillosttm. 

 Glyphioceras (too crushed to 



determine). 

 Orthoceras stviolatum. 



,, scalar e. 

 Ostracoda in abundance. 



Posidoniella laevis. 

 Pseudamusa fibrillosum. 

 Posidonomya membranacea. 

 Chcenocardiola footii. 

 Prolecanites compressus. 



Glyphioceras bilingue 

 ,, spirale. 



Glyphioceras diadema. 

 Stroboceras sulcatum. 

 Phillipsii cf. polleni. 



nd from shales at Vise, I determined : — 



Posidonomya becheri. I Pterinopecten papyraceiis. 



Posidoniella laevis. \ 



As kng ago as 1881, D;. Purvcs in his paper ' Sur la deline- 



a ur la Constilulion de I'etage honillier superieur de la 



B Igique,* : hew d Ihat the Caibcnife ous Limestone of 



* Bull de I'acad. Royale de Belgique, 3rd Series, Fart II., No. 12. 



Naturalist, 



