PALEOZOIC TIME CARBONIC. 



685 



of them known to occur in the Coal-measures, with other species of the 

 related genera Cymoglossa, Goniopteris, CalUpteridium, CalKpteris, and also 

 of Neuropteris, Sphenopteris, AlethojJteris, Odontopteris ; many species of the 

 Equisetum tribe, of the genera Splienopliyllmn, Annularia and Equisetites, 

 and the continuation of the Calamites, C. Suckovi; also, the occurrence of 

 Cycads of the Permian genus Baiera, and of the remarkable Conifer of the 

 Yew family, of the new genus Saportma, whose leaves were nearly four inches 



1117. 



1117-1121. 



niR. 



1117 a. 



MOLLUSKS. — Fig. 1117, 1117 a, Pseudomonotis Hawni; lllS, Myalina perattenuata ; 1119, Bakewellia parva; 

 1120, Pleurophorus subcuneatus ; 1121, au undetermined Gastropod. Meek. 



1122. 



wide. Only 20 per cent of the species have been found in the Coal-measures, 

 and over 25 per cent occur in the Permian of Europe, and the genus Cymo- 

 glossa is confined abroad to the Permian. 



AxiMALS. — 1. Brachiopods, 

 Mollusks. — Many of the com- 

 mon Coal-measure species con- 

 tinue on into the Permian. 

 Some of these are : Productus 

 semireticulatus, P. Mogersi, 

 Chonetes Flemingi, Spirifer 

 cameratiis, Seminula (Athyris) 

 subtilita; and with these are 

 others confined to the Permian, 

 as Meekella (Orthisina) Shu- 

 mardana, Productus Norwoodi, 

 Monotis Halli, M. speluncaria, 

 M. variabilis, Pseadomonotis 

 Haivni var. ovata (Fig. HIT), 

 Myalina perattenuata (Fig. 

 1118), M. Permiana, M. Halli, 

 M. recta, BakeivelUa parva 

 (Fig. 1119), Pleurophorus sub- 

 cuneatus (Fig. 1120), Schizodus Rossicus, Nautilus eccentricus, N. Permianus, 

 Cyrtoceras dorsatum; and Texas has afforded C. A. White five species of 



Medlicottla Copei. C. A. White. 



