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1886,] Geclogy and Paleontology. 885 
Lutkesaurus. Part Iv contains various notes on Sauropterygia 
and some undetermined fossils, and a description of Pekilopleuron 
schmidti, a crocodilian. he gneisses and schists of the Sinaitic 
peninsula, with similar rocks in Upper Egypt, are by Professor 
Hull referred to the Laurentian. Newer slates and schists with 
igneous rocks flank these, and are probably pre-Cambrian. The 
Cambrian, Silurian, and Devonian seems to be unrepresented in 
this region, the next rock in ascending order being the “ desert 
sandstone ” (sandstones, conglomerates and limestones) enclosing 
carboniferous fossils. Overlying these rocks, which are not ve 
extensive, is the Nubian sandstone, which cannot be distinguished 
from it by mineral characters, but which seem to be Cretaceous, 
‘though it may be Jurassic or Triassic. Above this is the Creta- 
ceous limestone, corresponding in age to the European chalk. 
This constitutes the mass of the hills in Palestine. Dr. 
Schweinfurth has recently announced, in the Bulletin of the 
tian Institute for 1885, the discovery of stems of crinoids, 
and of an Athyris allied to A. concentrica, in sandstone hitherto 
regarded as Nubian sandstone. Thus the lower part of the Nu- 
lan sandstone may prove to be Carboniferous. 
_ Carboniferous.—Professor J. R. Jones states that in the Carbon- 
iferous formation of Great Britian 170 species of Ostracoda have 
The Carboniferous limestone of Southwest Scotland, especially the 
Shales of the lower beds, is highly productive of Ostracoda. A 
forms. The middle coal-measures have five species of Carbonia, 
Beyrichia one, Philomedes one ; the lower have a Beyrichia anda 
Carbonia ; the upper B. subarcuata, while the latest Carboniferous 
ostracod is Leperditia inflata in the Spirorbis limestone. 
Jurassic —M. Stanislas Meunier finds four genera (Tigillites, 
Crossochorda, Equihenia and Eophyton) among the curious fos- 
at, analogous to the Silurian bilobites, collected from the Juras- 
sic beds of Equilien (Pas de Calais, France). 
f Tertiary —M. L. Dollo, apropos of the remains of a tortoise 
ound at Melsbrook, near Vilvorde (Belgium) some ten years 
3go, reviews and mainly adopts the classification of Professor 
Pe. He proposes the name Thecophora for shelled tortoises, 
‘nites the cryptodire family Propleuride with the Cheloniide, 
and establishes a family Eurysternide, The tortoise in ques-. 
tion was taken from the “Bruxellian” (Lower Eocene) beds, 
and is a cryptodire of the family Chelydride. M. Dollo names 
t Pseudotrionyx delheidi-~——Mr. R. L. Lydekker, after a reéxam- 
nation of the specimens from the bone-bed of the red crag in the 
