Cricetine-Like Rodents from the Sespe Eocene of California.

Paleontolog Y: C. Stock Eocene Amynodonts from Southern California by Chester Stock

Introduction.-Since the description' of a skull of Amynodontopsis bodei and of a lower jaw referred to this species from the uppermost Eocene, further dental parts have become available for study from localities in the Sespe. These furnish additional characters of value in recognizing the species represented in western Eocene deposits. Now also available is a fragment of skull with cheek-teeth ...

Hyaenodontidae of the Upper Eocene of California.

Since the announcement' of the discovery of upper Eocene mammals in the Sespe deposits north of the Simi Valley, California, excavations have been continued in these beds, particularly at Locality 150 C.I.T. Vert. Pale., by field parties of the California Institute. Recently an opportunity has been afforded the writer to compare a number of the mammalian types found here with related forms know...

GEOLOGY: C. STOCK NEW CREODONTA FROM THE SESPE UPPER EOCENE, CALIFORNIA By CHESTER STOCK

Paleontology: C. Stock Titanotheres from the Titus Canyon Formation, California

Introduction.-The Titus Canyon formation of Oligocene age, occurring in the Death Valley region of California, was described in a recent paper by Stock and Bode.' Brief mention was made at that time of the fossil mammals found in this formation. Among these, the titanotheres were the first to be discovered and moreover are known by the best preserved material. These types possess special intere...

An Eocene Primate from California.

lntroduction.-Recognition of a primate in the mammalian assemblage now being recorded from one of the faunal stages of the Sespe, north of the Simi Valley, California, comes with startling abruptness, yet is not wholly unexpected. No fewer than five fragments of jaws, probably representing as many individuals, have been found recently. The sudden appearance of this material in the collections o...