No.413.] REVIEWS OF RECENT LITERATURE. 421 
of the Middle Jura, but the occurrence of Lias in the same region 
shows that Neumayr's hypothesis of a great transgression of the sea 
in Middle Jurassic time in the arctic region will not hold good. 
Marine deposits existed there even before Jurassic time, as shown 
by the occurrence of Upper Triassic deposits in Alaska. 
Ej DG 
The Permian of Armenia.'— The strata of Djulfa in Armenia 
are classic in geological literature, having long ago been assigned to 
the Subcarboniferous on account of the supposed occurrence of 
Goniatites striatus. But a revision of the fauna, based on a new col- 
lection made by Prof. F. Frech, shows that these beds belong to the 
Permian, for there is a mixture of Paleozoic and Mezozoic types. 
Their Paleozoic age is shown by the occurrence of typical Permian 
brachiopods, such as are known in Russia and India, and of the 
goniatite genus Gastrioceras, which has never been found above the 
Permian. On the other hand, the genera Hungarites and Otoceras 
are known there, which elsewhere are not found below the Trias. 
The evolution of Hungarites from the simple forms of Armenia into 
the complex development as known in the Trias of Siberia and India 
is worked out by Dr. von Arthaber in a most convincing manner, 
and is a good argument against useless multiplication of generic 
names in a phylogenic series. TT 
Notes. — Dr. Diener (Beitr. Palacontol. Oesterreich- Ungarns, Bd. 
XIII, 1900) has continued his detailed studies of the Triassic 
faunas in this contribution, treating of the Muschelkalk zone of Cera- 
lites trinodosus. He describes a new genus, Arthaberites, of the 
family Pinacoceratide, resembling Pseudosagoceras Diener of the 
Lower Trias of Siberia, and possibly descended from it. The fauna 
described shows a strong resemblance to that of the Bosnian Mus- 
chelkalk long since made known by the works of F. von Haner. It 
consists of numerous species of Ceratites, Anolcites, Celtites, Proar- 
cestes, Joannites, Procladiscites, Megaphyllites, Sageceras, Arthaber- 
ites, Pinacoceras, Norites, Monophyllites, Sturia, Gymnites, Ptychites, 
Nautilus, Orthoceras, Atractites. Many of these species had not before 
been found in the Alps, and their discovery is of material aid in cor- 
relating the Alpine strata with those of the other Triassic provinces. 
! Arthaber, G. von. Das jüngere Palaeozoicum aus der Araxes-Enge bei 
Djulfa, Beitráge zur Palaeontologie Oesterreich-Ungarns und des Orients, Bd. xii 
(1900), Nr. 4- 
