The Paleontology of the Zorritos Formation of the North Peruvian Oil Fields
The Paleontology of the Zorritos Formation of the North Peruvian Oil Fields
Edmund M Edmund Maute Spieker
The book The Paleontology of the Zorritos Formation of the North Peruvian Oil Fields was written by author Edmund M Edmund Maute Spieker Here you can read free online of The Paleontology of the Zorritos Formation of the North Peruvian Oil Fields book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Paleontology of the Zorritos Formation of the North Peruvian Oil Fields a good or bad book?
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Quebrada north of Boca Pan. Superfamily VENERACEA Family VENERIDAE Subfamily DOSINIINAE Genus DOSINIA Scopoli Section DOSINIDIA Dall Dosinia (Dosinidia) grandis Nelson PLATE VIII Fig. 4. Dosinia grandis Nelson, Trans. Conn. Acad. , vol. 2, p. 201, 1870. "Shell large, solid, subequilateral ; length and breadth nearly equal, broadest just above middle line. Beaks ele- ** Quart. Jour. Geol. Soc. Lond. , vol. 22, p. 582, pi. 26, fig. 4, 1866. 154 Jour. Ac. Nat. Sci. Phila. , 2nd. Ser. , vol. 15, p.... 54, pi. 9, figs. 5, 6, 1912. LW Abh. Geol. Spez. Preuss. Bd. 10, Hft. 5, p. 1154, p. 77, fi g s - 9, 10, ii, 1893. PALEONTOLOGY ZORRITOS FORMATION 139 vated, nearly central, curved inward and forward. Lunule heart-shaped, very deeply impressed, two-thirds as wide as long, marked by striations which become finer as they pass into it. Anterior end short. Anterior and posterior ends nearly equally rounded. Ligament large ; scar long, striated longitudinally. Surface covered by a thick epidermis, and marked by broad, flat concentric ribs, which become larger and smoother over the middle of the shell, but not wholly obsolete.
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