1923 



CHROXOLOGY 



43 



Correlation 

 Rasenian 



kitchini 



kitichini 



nrcdensis 



SeQUENXE XII — PORTGOWER, SCOTLAND 



Strata and Localities Fauna 



Calcareous Sandstone in 

 " Boulder Bed " — 

 Shore J-mile S.W. of 

 Portgovver, Helmsdale 



Calcareous sandstone in 

 " Boulder Bed " — 

 Shore 710 yards S.W. 

 of Portgower 



Loose blocks of 



calcareous sandstone — 

 Shore 250 yards S.W. 

 of Portgower 



Rhvnch. siithcrlandi 



Tcrchratula joassi ; 

 Amoeb. cf. kitchini 



Amoeb. cf. kitchini; 

 Rascnia cf. uralensis 

 (large fragment) 



Correlation 

 Rasenian 



cymodoce ? 



uralensis 

 uralensis 



Sequence XIII — Helmsdale, Scotland 

 Strata and Localities 



Fauna 



Shales and thin Rasenia cf. bifiircata, 



calcareous sandstones — Ouenstedt sp. 



Shore 350-400 yds. N. 



of houses at Old Dis- 



tiller\', Helmsdale 

 Shales and " boulder 



bed "■ — Shore 300 yds 



X. of houses, etc. 

 Shales and thin 



calcareous bands — 



Xear Xavidale House, 



Helmsdale 



Rascnia cf. uralensis 

 Rasenia cf. uralensis 



Correlation 

 Physodoceratan 



pseudomutabilis 



Rasenian 



desmonotus ? 



kitchini 



stephanoides 



cricki 



circumplicatus 



Sequence XI\' — Loth, Sutherland 

 Strata and Localities 



1. Golf Links, near Loth 



Railway Station 



2. Loth River Shales — 



Chfts in X. bank of 

 Loth River, where 

 railway is bridged over 

 stream, Loth, 4^-m. 

 X.E. of Brora, Suther- 

 land. Specimens 

 mostly crushed 



3. Xodule in clay. Loth 



Point, Loth 



Fauna 



. 1 idacostephanus cf . 

 eudoxus 



Rasenia striolaris 



Amoeboceras cf. kitchini 



Rase n ia stepha no ides 



A moeboceras cricki/ovale 



Rasenia cf. circumpli- 

 catus, Quenstedt sp. 



