156 CALIFORNIA ACADEMY OF SCIENCES [Pboc. 4th See. 



aria L., My a crassa Gren., My a truncata L., Pec ten fucanus 

 Dall, Saxicava ungana Gren., Buccinum sp., Chrysodomus cf., 

 liratus Martyn, Tritonofusus sp. 



This fauna is decidedly northern, very like that of the 

 Alaskan Gulf and Puget Sound region. It seems to the writer 

 more likely to be the boreal equivalent of the Puget Sound 

 Empire fauna. There are too many Recent species in it for 

 it to be equivalent to either the Astoria (Oligocene), or the 

 Clallam (lower Miocene) of Oregon and Washington. 



Empire. On the shores of Oregon and Washington, from 

 Cape Blanco (lat. 42° 50' N.) to the Olympic Peninsula, (lat. 

 48° N.), occurs the Empire formation. It was described by 

 W. H. Dall ^^, as upper Miocene, his fossils having been col- 

 lected at Coos Bay, Oregon, by B. H. Camman, from the entire 

 section exposed there. This fauna has since been collected 

 and described by R, Arnold and H. Hannibal ^* at Coos Bay, 

 and numerous other localities up to the Olympic Peninsula. 

 Collections by B. H. Camman and H. Hannibal have yielded : 

 Area trilineata Con., Cardium coosense Dall, Cardium meek- 

 anum Gabb, Chione securis Shum., Glycimeris grezunngki Dall, 

 Macoma astori Dall, Macoma calcarea Gmel., Marcia oregon- 

 ensis Con., Mulinia densata Con., My a truncata L., Mytilus 

 ifiiddendorffi Gren., Nucula conradi Meek, Panomya ampla 

 Dall, Paphia staleyi Gabb, Pecten coosensis Dall, Phacoides 

 acutilineatiis Con., Schizothoerus pajaroanus Con., Spisula 

 albaria Con., Tellina aragonia Dall, Argobuccinum cammani 

 Dall, Argobuccinum coosense Dall, Bathytoma gabbiana Dall, 

 Boreotrophon stuarti Smith, Bullia bogachieli Rgn., Calyptrcea 

 hairdi Dall, Cancellaria oregonensis Dall, Chrysodomus bairdi 

 Dall, Chrysodomus imperialis Dall, Crepidula princeps Con., 

 Cymatium, pacificum Dall, Fusus coosensis Dall, Miopleionia 

 oregonensis Dall, Natica clausa B. & S., Phalium cequisulcatum 

 Dall, Phalium turricula Dall, Polinices galianoi Dall, Turris 

 coli Dall, Turris perversa Gabb, Discinisca oregonensis Dall, 

 Dendraster gabbi Remond. Dall also lists Eudolium oregon- 

 ense Dall, but it seems more likely that this, possibly along with 

 Phalium cequisulcatum, and P. turricula came out of the older 

 Astoria or Clallam beds, since the fossils were collected on 



"U. S. Geol. Survey, Prof. Papers No. 59, (1909). 



** The marine Tertiary stratigraphy of the north Pacific Coast of America. Free. 

 Amer. Phil. See. vol. 52, No. 212, (1913). pp. 559-60S. 



