220 Annals of the South African Museum. 



Some time ago, when re-examining Mr. Crick's types of Zululand 

 Cephalopoda, in connection with the description of an Albian fauna 

 from Angola,* it became clear to the writer that the collection from 

 the South Branch of the Manuan Creek included Albian Ammonites. 

 Mr. Crickf had considered that they " most probably represented a 

 somewhat higher horizon (possibly Seuouiau) than that indicated by 

 the False Bay fossils," which latter were regarded to be Cenomanian. 

 Since EtheridgeJ already had described a Douvilleiceras and a Lyelli- 

 ceras ? from the neighbouring Umsiuene Kiver, and since Mr. Crick || 

 himself recorded, from the Middle Branch of the Manuan Creek, two 

 undoubted Gault Ammonites, namely " Hysteroceras " [Brancoceras^ 

 sp. and " Schloenbachia" [Dipoloceras^\ sp., the presence of the Albian, 

 at the South Branch also, was to be expected. In fact Mr. Crick 

 identified four examples from this South Branch as ? Beudanticeras 

 beudanti, Anisoceras sp., Douvilleiceras sp., and as " Schloenbachia" 

 aff. delarnei, d'Orbiguy sp. ; the latter, a typical Dlpoloceras of the 

 cristatum- group (s.7.) was worked out of the matrix of one of the large 

 Cymatoceras (referred to on p. 244) by Mr. Crick. But probably, on 

 the one hand, Mr. Crick was doubtful about his identifications, for 

 he did not mention these four important specimens in his paper ; on 

 the other hand, he may have been reluctant to assume different 

 horizons for what appeared to be the fauna of one single formation. 

 The Albian, Cenomauiau and Senouian Ammonites may be preserved 

 in a very similar brownish, friable matrix, and since there were as 

 many Senonian as Albian forms (in addition to one Cenomanian 

 Acanthoceras) present in the fauna from the South Branch, Mr. Crick 

 described the whole as " possibly Senonian."' 



In a later paper, Mr. Crickf" stated that the occurrence (in the 

 Mauuau Creek district) of Cretaceous beds of an age younger than 

 Cenomaniau was somewhat doubtful. On the other hand, Mr. E. B. 

 Newton, in his paper on " The Cretaceous Gastropoda and Pelecypoda 

 from Zululand, 1 '** discusses the evidence in favour of a Senonian 



* Bead before the Eoyal Society of Edinburgh, December 6th, 1920. (See 

 'Nature,' vol. cvi, No. 2669, December 23, 1920, pp. 554-5.) 



I " Cretaceous Fossils of Natal," pt. iii, No. 2 .- " The Cephalopoda from the 

 Tributaries of the Manuan Creek, Zululand," ' Third Kep. Geol. Surv. Nat. and 

 Zulu!./ 1907, p. 249. 



I Ibid., pt. ii, " The Umsinene River Deposit," p. 87. 



Gen. nov. (type, A. lyelli, Desh. in Leym. ; d'Orbigny, 'Pal. Franc. Ter. 

 Cret.,' pi. Ixxiv, figs. 1 and 2) dealt with in the writer's Angola paper. 



|| Loc. cit., pp. 247-8. 



[ " Cretaceous Kocks of Natal and Zululaud," ' Geol. Mag.,' N.S., dec. v, vol. iv 

 (1907), p. 347. 



** ' Trans. Eoy. Soc. S. A.,' vol. i, pt. i (1909), pp. 94-5. 



