Joc'R. Rov. Soc. Western Australia. ^'0L. XII, Xo. 11. 97 
The Crinoid Marsupites, and A New Cirripede from the Upper 
Cretaceous of Western Australia, by Thomas H. Withers, F.G.S. 
(lUad by L. (Tlauert. July i;i, \9'2ix FabUshed July 20, 1926.) 
(Conmiunicated by ])ermisf?ion of tlie Trustees of the British 
Museum. ) 
The Crinoid ^Marsupites in the Upper ('RETACEors Of^ Western 
Australia. 
Up till 1921 the exaet age of the Cretaceous deposits occurring 
at Giiigiii, Western Australia, was in doubt, but the discovery in 
those beds of tlie crinoiil I’iiitacrinus, enabled me to conclude 
(Withers, 1924, Jour. Roy. Soc. W. Australia, XI. Xo. 2, p. 18) 
that they were equivalent in age to the Saiitoniaii or Middle Senonian 
of the European Cretaceous, rintacriiius has since lieen found by 
Mr. L. Glauert, F.G.S. , at One Tree Hill, and ^fole Cap Hill, at 
Giiigiu, aiifl at Round Hill, Daudariagan, some fifty miles north 
of Gingin. 
This discovery has stimulated further woi'k on these dejmsits, 
ai.d among the many interesting fossils that ^Ir. Glauert has since 
collected are a number of plates of the unstalked crinoid Marsnpitfs. 
These were found in association with plates of T'intacriiius at th* 
three above-mentioned localities and at ‘‘Compton’s Chalk,” Gingin. 
The association of these two crinoids seems to dispose of any possible 
doubt that the beds are equivalent in age to the Marsaj/ites-zonv of 
the European Cretaceous. It would seem also tliat tJjey agree in 
age with some part of the Arrialoor Group of Southern India, in 
which Marstipifcs has been found. 
first made known from llie English (dialk, Marsupitf'.s was later 
sliowii by Rowe and Sherborn (1900, ‘‘Tlie Zones (d' Hie Wliite 
Clialk of the Eiiglisli Coast,’’ Py I, Kent and Sussex. Pm-. (4eol. 
Assoc.. London, X\ 1. pt, 6. jip. 294. J47), to liave a definite and 
restricted range in the Tipper Chalk, It occurs commonly in a belt 
of chalk, bounded above by the zone of Actiiiocamax quadratus, and 
below by the L intacriHUf; band. This distribution is apparently 
common to the whole of the European Cretaceous. 
