Bulletins of American paleontology . those of Beringus arnoldi (Martin) .- The holotype is one of two imperfect specimens having that A cursory examination of museum specimens labelled Fusinus (Buccino-fusus) cooscnsis Dall, 1909 suggests gradation between some of these andBuccinum cammani (Dall) ; a phylogenetic relationship is possible but hasnot been investigated. 520 Bulletin 254 number ( 153907, Miocene, Coos Bay, Ore.) ; it is high, incomplete anteriorly and posteriorly, and worn. Thesecond specimen is almost ^ No entire specimens havebeen seen; the fragments st
Bulletins of American paleontology . those of Beringus arnoldi (Martin) .- The holotype is one of two imperfect specimens having that A cursory examination of museum specimens labelled Fusinus (Buccino-fusus) cooscnsis Dall, 1909 suggests gradation between some of these andBuccinum cammani (Dall) ; a phylogenetic relationship is possible but hasnot been investigated. 520 Bulletin 254 number ( 153907, Miocene, Coos Bay, Ore.) ; it is high, incomplete anteriorly and posteriorly, and worn. Thesecond specimen is almost ^ No entire specimens havebeen seen; the fragments studied have one to four whorls and rangein height from to cm. Distribution. — Biiccinum cammaui (Dall, 1909a) ranges from Miocene toPliocene in the following marine formations of western Oregonand Washington: Oregon, Empire at Coos Bay, (Howe, 1922; Weaver, 1943) ; CoosConglomerate (Howe, 1922). Washington, Montesano Formationat Grays Harbor Co., (Howe, 1922, Weaver, 1943); Astoria For-mation, Grays Harbor Co., (UCMP A-73).. Text-figure 13. — Convergent Pliocene fossils that have been misidentifiedas Argobuccinum. a,b, Buccinum cammani (Dall); c, Fusilriton orcgoncnsis(Redfield) ; d,e, Brringius arnoldi (Martin). Presence of varices and straightaxial ribs distinguish F. orrgoncnsis from the other forms having sinuous axialcostae and slightly appressed sutures. Shaded area of d is a concealed drawn to uniform size. Beringinus arnoldi (Martin, 1914) PI. 49, figs. 10, 13 Argobuccinum arnoldi Martin, 1914, Univ. California Dept. Geol. 8(7), p. 192, pi. 21, figs. 4a, 4b. Clark, 1929, Strat. California: pi. XLVII, fig. 2. Ogle, 1953, California Div. Mines Bull. 164, p. 45, checklist pi. (Pricnc) arnoldi (Martin) Grant and Gale, 1931, San Diego Soc. Nat. Hist. Mem. I, p. 738. The paratype, also numbered 153907 but labelled Coos Bay,Or. Pliocene, was also part of the Camman collection, and precise locality, for-mation, and age data are un
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