
960 The American Naturalist. [November, 
-mian strata of India, and in part of Russia: Terebratula hima- 
layensts, Retzia grandicosta, and Spirifer musateheylensis. Nine 
species at least belong only to the Permian period, and seven of 
them have been found in the Salt range of India, three in Armenia, 
and one in Russia. © 
So we have in Timor no species which could be considered as 
of exclusively Carboniferous age (except perhaps Amplexus coral- 
_loides), but nine species of exclusively Permian age ; and therefore 
we cannot doubt that the fossiliferous Paleozoic strata of Timor 
belong really to the Permain period. i‘ 
` In favor of this opinion may also be mentioned the presence of 
Ammonites, which are not yet known as having existed in the 
Carboniferous period. The Ammonites megaphyllus, which was 
described by Beyrich, and placed, together with the Triassic 
Ammonites farbas, ina particular group, has since played a remark- 
able part in the story of systematic arrangement. 
First it was raised by Mojsisovics to the rank of a head of the — 
genus Megaphyllites,in 1878. But after a few years the head got 
disgusted with his family, and fell in love with a young American 
lady, called by Hyatt Propanoceras (1886), in whose bonds he 
remained but a very short time, for he had become a very 
fickle fellow, and was running after some other Russian and 
Italian ladies, as Waagenia, Waagenina, and Stacheoceras. But 
these seem to have been only transitory passions, and, becoming 
older and calmer, he found at last the harbor of the genus Arcestes, 
where I hope he will pass his days peacefully, together with his 
new compatriot, the Arcestes tridens. 
Now we have to consider another very interesting fact : that 
none of the exclusively Permian species of Timor occur in Aus- 
tralia or America. This seems to prove that Timor was a part 
of that Permian sea that covered the northern part of East 
India, Armenia, and Russia, and which was limited at the south, 
and perhaps at the east too, by that old Australian-Indian and 
African continent on which, in the same time, the wonderful Glos- 
sopteriy flora was growing. 
) also no near relations exist with the middle and northern 
a - : ieee of oe The Rampa flor. and marine fauna of the 

