CARBONIFEROUS PLANTS PERU n 



alization that the plant bearing Carboniferous in South 

 America is Lower and the invertebrate bearing Carboniferous 

 is Upper in age. 4 He states with his usual assurance that the 

 Paracas forms represent 



Archaeocalamites radiatus 

 Lepidodendron cf. Veltheimi 

 Lepidodendron cf. Volkmanni 

 Sphenopteris affinis = S. furcata 

 Rhodea filifera 

 Rhabdocarpus 



None of these forms are represented in the large collec- 

 tions which I made at Paracas, nor did I see any of them in 

 the Fuchs collection. 



Finally in 1917 in Lisson's admirable compilation of Peru- 

 vian fossils 5 the two species Lepidodendron rimosum and 

 Lepidodendron obovatum are listed, the determinations being 

 by the late Professor Zeiller, and the age is given as West- 

 phalian. Both of these species are represented in my collec- 

 tions. 



DESCRIPTION OF THE SECTION 



The question of the age of the Paracas deposits and their 

 relation to the widespread Carboniferous limestones of the 

 Andes is one of great importance. It was apparently some 

 conversation with Senor Bravo, the Director of the Cuerpo 

 de Ingenieros de Minas regarding the Paracas continental 

 Carboniferous that was the basis for the beautiful diagrams 

 of the relations of land and sea during Carboniferous time 

 published by Bowman, 6 which he unfortunately located at 

 Pacasmayo which is 805 km. north of Paracas in a region of 

 crystalline rocks. 



4 Geol. Rundschau, Bd. I, p. 50, 1910. 



5 Lisson, C. I., Edad de los Fosiles Peruanos y Distribucion de sus 

 Depositos en Toda la Republica, pp. 20-21, Lima, 1917. 

 * Bowman, I., The Andes of South America, p. 19. 



