CORRELATION OF MARINE TRIASSIC SEDIMENTS. 
Series| Stage Substage Zone Fossil Mediterranean Region Oriental Region Arctic- Pacific Region American Region 
Rhaetic 22 Avicula contorta KKoessen Beds a, 
; 5 =a o 
5 Sorcatis 21 Strenites argonaute a Balia- a 5 Pea : 3 
evatic : sa = ; : 
<q S 20| Pinacoceras metternicht | & 3 “S) Maden whol Flalorella beds of the Monotis beds SO.8 seudomonotis beds ? a 
iS "te ; Taras Boe Asia Minor Pawanthe of Rotti 32S of Peru ao 
= is) Alaunic 19 | Cyrtopleurites bicrenatus cB SOW! S Og 2 ; 0 ¢ 
a 7, meee 265 ; eu SZ Swearinger slates, | Ya 
ac) Dakiotc 18 Cladiscites ruber Bat te Noric lime- Ri Galitocian Au 
17 Sagenttes giebelt A stone & ~ |) Hosselkus limest’ne | 5 © 
L ‘Tuvalic 16 Tropites subbullatus Sandling beds ae Karnic lime- Se ae ictus) (tien eallatiasctad ( nO 
: 5 : 8 a q 2 Se 
A 5 Julic 1s| Zvachyceras aonotdes Rainmoede stone peeee S x aé a= Trachyceras faunas ! ie E 
3 s Cordevolic | 14 Trachyceras aon St. Cassian beds ott Pe reotpee © \Halobia beds } =0 
ie 3 Longobardic | 13 | Protrachyceras archelaus Wengen beds J Piteshalee 
a Ke ieesntts 12 Dinarites avisianus Menronollatie beds Nipon beds of Japan of Shatin Slay Peak 
me 11| Protrachyceras curtoniw Buchenstein beds County, | beds of 
. . S Beds of Russ-| | Californi J) Nevad 
: 2 ; ‘ Ptychites rugifer beds of |) 8 « | Beds of Russ alitornia evada 
4 7 , calk : N a ets 
© Bosnic 10 Ceratites trinodosus Upper Muschelkalk the Himalayas : a f kij and 
Ea 82 | op Olenek 
iS a 9 q 
4 < : : : 4, | Szberites prahlada beds of Ss 
S Balatonic 9 Ceratites binodosus Lower Muschelkalk the Himalayas | - 8 
= So || 8 
ao ws a ie aes $4] 2 
Som F ; pper Cerazzte limestone S81n 
PO 8 Stephanites superbus of the Salt Range & = | 
o SJ 
S) Flemingites flemingianus\3% & , VBS © 2 oS Ely J) | Meehoceras 
2 d = wi = oN eS | Roogaow [es 3 w | beds of ? | Santa Ana 
Ae 6 Flemingites radiatus aees r= Se eV 6-834 3! -Olenek beds of Siberia ear t f 
3 5 : : os Ses a Ne OSS SS ® oe J Idaho imestone 0 
= 5 Ceratites normalis N& (Se) eS 2 ae SAS 18) ofa} J California 
oO Oe oe 
S ; : Old ; : 
a 4| Proptychites trilobatus es g 2 | Ceratite marls of the Salt | 
§ a2) ; : Don si R 
m : : : ay ae ; q oo ange ds of U d 
| : 3 |Proptychites lawrencianus Q is! (oy Beds of Ussuri an pes ieee 
a S Gandaric ; i. eaten rae — Russkij Ceratite limestone of Inyo 
5 2 Gyrontites frequens 5 0 8.8 | Lower Ceratze limestone County, California 
<q yronues J7e7 mala ls oi dhe Sait Rese || 
fs en 1S Ot beds of tl 
Gangetic I Otoceras woodwardi ane N DEES WOES Ol Ne 
Himalayas 
