PAL/EONTOLOGY. 



Bj' RALPH TATE, Projcssor of Natural History iii tlie University 



of Adelaide. 



(With Plates 1, 2, 3.) 



Larapintine Series (Ordovician). 



1. References to Palwontological Litei-ature of tlie Larapintine Series. 



The discovery of Ordovician fossils in Centr;il Australia is solely due to Mr. 

 F. Thoi'nton, sometime resident at Tenipe Downs, who brought some of tiiem to 

 the notice first of Mr. H. Y. L. Bi-own and afterwards of Mr. C. Chewings, on the 

 occasion of tlieir visits to him in 1890. The fii-st publislied announcement of tliis 

 discovei'y \va.s, howe^'er, made hy ]\lr. Chewings (1) antedating Mi-. Brown's (2) 

 by a few months. 



I. — Tate, R., in Mr. C. Chewings' "Geological Notes on the Upper Finke 

 Basin," Trans. Roy. Soc. S. Aust., vol. xiv., p. 255, 1S91, recorded the following 

 genera and species: — Orthoceras off. iiiibricatuiu ( = Actinoceras tatei, EfJi. fils), 

 O. aff. ilhw ( = 0. ihiciforme, n. sp.), Raphisionia, sp. ( = R. lirownii, Eth. fils), 

 Ortliis flabelliDii ( = 0. leviensis, Etli. fi/s), Stropliontciia, sp. ( = Orthis diclioioiualis, 

 Tate), and Fliacops, sj). ( = Asaphus illarensis, .£///. yf/i). Tlie author was of tlie 

 opinion that the fossils indicated an Upper I'ather than a Lower (Silurian facies. 



IL — Etiieridge, R., in Mr. Brown's "Reports on Coal-bearing Area in 

 neighljourhood of Leigh's Creek," Pari. Paper, No. 158, 1891, pp. 9, 10, and 13, 14, 

 pi. i., figured and desci'ibed Rapliistoma I'row/iii, Orthis leviciisis, and Ortlioceras, 

 sp. ind., and believed them to lie of Lower Silurian age. 



III. — Etiieridge, R., in Mr. Brown's "Report on Leigh Creek and Hergott 

 Springs," Pari. Paper, No. 2.3, 1892, p. 8, pi. i., described and figured Asaphus 

 {Afegalaspis 1) thorntoni. 



IV.— HowciiiN, W., Tr.ans. Roy. Soc. S. Aust., vol. xvii., p. 35,5, 189.3, 

 recorded tlie occurrence of sponge-i-ods, to which he applied /itlcl's name of 

 Hyalostelia. 



