95 
Note on Fossil Cokals from Langley Park I^oke, PEiiTir. 
T.^NOTE ON EOSSIL CORALS FROM LANGLEY 
PARK BORE, PERTH. 
By John W. Wells, 
Ohio State University, Cohnnbiis, U.S.A. 
Communicated by Dorothy Carroll. 
Read : 12th November, 1940 ; Published : 15tli May, 1942. 
INTRODUCTORY NOTE. 
Through the kindness of Dr. Dorothy Carroll of the Department of ecol- 
ogy, University of Western Australia, I have been enabled to examine the 
specimens of shiny hexacoi-als obtained from the Langley Park Jlore at Pertli. 
All the spociinons came from a depth bet\A'(H'n 42S and 440 feet and otauirred 
in a “soft sandstone or unconsolidated grey sand, *nediuin grained, with a 
little clay.” Two species are repi't'sented in the colUnJ/ion, one belonging to 
Tremafotrochns latvroplmus Dtmnant, tlie oth^r jirobably a now species of 
oculinid but not specifically named at this time. Tlio fact that the first 
specaes jiroviously has been found in Balcombian sti-ata at Nhelforfl, Muddy 
Creek (lower), “ Fishing Point,” and “ Lower Moorabool,” and in Janjukian 
strata at Spring Creek, (-ape Otway, and Lake AloxHTidrina (Janjukian ?), 
Victoria (Dennant ami Kitson,* p. 135), miglit b(s taken to indicate BaJeomb- 
ian or Janjukian ago for some of the beds in the Langley Park Boro, but tlie 
known long range of some of the corals of the Australian Tertiary deposits 
(a few species even ranging from Balcombian to Recent) makes any such 
assumption based U 2 )on the corals unwarranted at this time. Very careful 
studios of the Australian Tertiary coral species and their stj-atigraphic dis- 
tribution are d(!sidorata, practically nothing having been done since Dennant’s 
work at the turn of the last century. 
DESCRIPTIONS. 
Family CARYOPHYLLIIDAE. 
Subfamily TURBINOLIINAE. 
Gcnvis TREMATOTROCHUS Tonison Woods 1S77. 
Trematotrochus latcroplemw Doanant 1899. Tm/iH, Proc. Hoi/. Hoc. .Sonllt Aaslrtdia. xxiii 
282, pi. 9, figs 2u, b. 
The single, slightly worn spet-imon idtaitified with this species agrees 
closely with Donnant’s excellent description of tlie types, excejit for its size, 
which is smaller. Typical specimens, accoi-ding to Dennant, measure 5 mm. 
ill height, and 2x3 mm. across the (?ompi*ossetl calico. JIks present specimen, 
probably immature, is 2*5 mm. in height, tlie calico I x 2 mm. In all other 
respects there are no differences. 13ie septal aiTangeuKHit of the specimen 
is peculiar to this and ouo other species of the genus, that is, there art) thro(! 
complete cycles of septa (24) with the fourth cycle dev’^eloped only in those 
systems on either side of the ends of the longer axis of the ealiee, giving a 
total of 32 septa. 
* J. Dennant and A. E. Kitson, Catalogue of tlie Described Species of Fossils (except Bryozoa 
and Forarainifera) in the Cainozoic Fauna, of Victoria, Soiitli Australia, and Tasmania. 
Hec. Geol. Survey Victoria, Vol. 1, IT. 2, p. 89, 1902-6. 
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