Maryland Geological Survey 271 



Pteridolcimma kaltenbachi Debey and Ettingshausen 

 Pteridoleimtna koninckianum Debey and Ettingshausen 

 Pteridoleimma leptophyllum Debey and Ettingshausen 

 Pteridoleimma michelisi Debey and Ettingshausen 

 Pteridoleimma odontopteroides Debey and Ettingshausen 

 Pteridoleimma orthophyllum Debey and Ettingshausen 

 Pteridoleimma pecopteroides Debey and Ettingshausen 

 Pteridoleimma pseudadianthum Debey and Ettingshausen 

 Pteridoleimma ritzianum Debey and Ettingshausen 

 Pteridoleimma serresi Debey and Ettingshausen 

 Pteridoleimma waterkeyni Debey and Ettingshausen 

 Raphaelia neuropteroides Debey and Ettingshausen 

 Rhacoglossum dentatum Debey 

 Rhacoglossum heterophyllum Debey 

 Sequoia reichenbachi (Geinitz) Heer 

 Sphwrites solitarius Debey and Ettingshausen 

 Thallasocharis bosqueti Miquel 

 Thallasocharis mulleri Debey 

 Zonopteris gapperti Debey and Ettingshausen 

 Zosterites aquinervis Debey 

 Zosterites miqueli Debey 

 Zosterites vittata Debey 



Saxony 



The Hartz Eegion. — North of the Hartz the lower Saxon, or sub- 

 hercynian Cretaceous area, contains fossil plants in the vicinity of Blauk- 

 enburg, Quedlinburg, Halberstadt, etc. 1 Although known for over a 

 century the first author to figure fossil plants from the now celebrated 

 beds of Blankenburg and vicinity was Zenker," who in Ls:5:i described a 

 Salix and four species of Credneria. A rather extensive literature, prin- 

 cipally geological, has grown up around these deposits. The principal 



1 In this area Liassic plants have been described by Dunker from the Hal- 

 berstadt region, Palaeont., Bd. i, 1846-1851, pp. 39-41, 107-125, pi. vi, xiii-xvii 

 Nachtrage, pp. 176-181, 319, 320, pi. xxv, xxxvii, and Lower Cretaceous plants 

 have been described from the Quedlinburg region from the Neocomian sand- 

 stone of Helmstein bei Westerhausen and from the Aptian (Dames, 1880) of 

 Langenberge (sometimes considered of Albian age [Ewald, 1857]), noticed by 

 Schulze in 1888 (Inaugural Dissert. Halle) and thoroughly described by Rich- 

 ter in 1906 and 1909. 



2 Zenker, J. C, Beitrage zur Naturgeschichte der Urwelt, Jena, 1833. 



