Hostname: page-component-8448b6f56d-wq2xx Total loading time: 0 Render date: 2024-04-25T04:51:46.870Z Has data issue: false hasContentIssue false

New Paleogene Fimbria (Mollusca: Bivalvia) from the Pacific Coast of southwestern North America

Published online by Cambridge University Press:  14 July 2015

Richard L. Squires*
Affiliation:
Department of Geological Sciences, California State University, Northridge 91330

Abstract

The marine bivalve Fimbria susanensis n. sp. is reported from the uppermost Paleocene part of the “Meganos Stage” in the upper Santa Susana Formaton, Simi Hills, southern California.

Fimbria pacifica n. sp. is reported from the middle lower Eocene “Capay Stage” strata of the Pacific coast of southwestern North America. The new species is present in the lower Bateque Formation, Baja California Sur, Mexico, and in the lower Juncal Formation, Whitaker Peak area and Santa Ynez Mountains, southern California.

Fimbria susanensis n. sp. and F. pacifica n. sp. are the only fimbriids known from the Pacific coast of North America. Previously reported Pacific coast species, which gave a range of Late Cretaceous to late Eocene for this genus in this particular area, do not belong to Fimbria.

Type
Research Article
Copyright
Copyright © The Paleontological Society 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Anderson, F. M., and Hanna, G. D. 1935. Cretaceous geology of lower California. Proceedings of the California Academy of Sciences, 4th series, 23:134.Google Scholar
Armentrout, J. M., Beaulieu, D. A., and Rau, W. W. 1983. Correlation of Cenozoic stratigraphic units of western Oregon and Washington. Oregon Department of Geology and Mineral Industries, Oil and Gas Investigation, 7:190.Google Scholar
Bottjer, D. J., and Jablonski, D. 1988. Paleoenvironmental patterns in the evolution of post-Paleozoic benthic marine invertebrates. Palaios, 3:540560.CrossRefGoogle Scholar
Clark, B. L. 1918. Meganos Group, a newly recognized division in the Eocene of California. Geological Society of America Bulletin, 29:281296.CrossRefGoogle Scholar
Clark, B. L. 1921. The stratigraphic and faunal relationships of the Meganos Group, middle Eocene of California. Journal of Geology, 29:125165.CrossRefGoogle Scholar
Clark, B. L. 1925. Pelecypoda from the marine Oligocene of western North America. University of California Publications, Bulletin of the Department of Geological Sciences, 15:69136Google Scholar
Cossmann, A. E. M., and Pissaro, G. 1904–1906. Iconographie completé des coquilles fossiles de l'Éocène des environs de Paris. Vol. 1. H. Bouillant, Paris, 45 pls.Google Scholar
Dailey, D. H., and Popenoe, W. P. 1966. Mollusca from the Upper Cretaceous Jalama Formation, Santa Barbara County, California. University of California Publications in Geological Sciences, 65:127.Google Scholar
Dawson, M. K. 1978. The paleontology of the Cabrillo Formation. Unpubl. , , 87 p.Google Scholar
Deshayes, M. G. P. 1824–1837. Description des coquilles fossiles des environs de Paris. Vol. 1 (Conchifères):1392 (1824–1832). Atlas (Pt. 1):pls. 1–65 (1837). Chez l'auteur and others, Paris.Google Scholar
Deshayes, M. G. P. 1856–1866. Description des animaux sans vertèbres découverts dans le bassin de Paris. 3 vols. J.-B. Bailliere et fils, Paris, 2536 p. Atlas (2 vols.), 107 pls.Google Scholar
Dibblee, T. W. Jr. 1966. Geology of the central Santa Ynez Mountains, Santa Barbara County, California. California Division of Mines and Geology, Bulletin 186, 99 p.Google Scholar
Dibblee, T. W. Jr.. 1986. Geologic map of the Hildreth Peak quadrangle, Santa Barbara County, California. Dibblee Foundation Map, No. DF-03.Google Scholar
Dockery, D. T. III. 1982. Lower Oligocene Bivalvia of the Vicksburg Group in Mississippi. Mississippi Department of Natural Resources Bureau of Geology, Bulletin 123, 261 p.Google Scholar
Durham, J. W. 1944. Megafaunal zones of the Oligocene of northwestern Washington. University of California Publications, Department of Geological Sciences Bulletin, 27:101212.Google Scholar
Frakes, L. A. 1979. Climate Throughout Geologic Time. Elsevier, Amsterdam, 310 p.Google Scholar
Hallam, A. 1977. Jurassic bivalve biogeography. Paleobiology, 3:5873.CrossRefGoogle Scholar
Hanna, M. A. 1927. An Eocene invertebrate fauna from the La Jolla guadrangle, California. University of California Publications, Department of Geological Sciences Bulletin, 16:247398.Google Scholar
Haq, B. U. 1981. Paleogene paleooceanography: early Cenozoic oceans revisited. Oceanologia Acta. Proceedings, 26th International Geological Congress, Geology of Oceans Symposium, Paris, p. 7182.Google Scholar
Linné, C. 1758. Systema naturae per regna tria naturae. Editio decima, reformata, Regnum animale, Vol. 1. Holmiae, 1327 p.Google Scholar
Megerle von Mühlfeld, J. K. 1811. Entwurf eines neuen System's der Schalthiergehause. Magazin Gesellschaft Naturforschung Freunde Berlin, 5:3872.Google Scholar
Merriam, C. W. 1941. Fossil turritellas from the Pacific coast region of North America. University of California, Publications in Geological Sciences, 26:1214.Google Scholar
Nelson, R. N. 1925. A contribution to the paleontology of the Martinez Eocene of California. University of California Publications, Bulletin of the Department of Geological Sciences, 15:397466.Google Scholar
Nicol, D. 1950. Recent species of the lucinoid pelecypod Fimbria. Journal of the Washington Academy of Sciences, 40:8287.Google Scholar
Okada, H., and Bukry, D. 1980. Supplementary modification and introduction of code numbers to the low-latitude coccolith biostratigraphic zonation. Marine Micropaleontology, 5:321325.CrossRefGoogle Scholar
Orbigny, A. D. d'. 1850. Prodrome de paléontologie stratigraphique universelle des animauz mollusques et rayonnés. Vol. 2. Paris, 427 p.Google Scholar
Page, B. M., Marks, J. G., and Walker, G. W. 1951. Stratigraphy and structure of the mountains northeast of Santa Barbara, California. American Association of Petroleum Geologists Bulletin, 35:17171780.Google Scholar
Palmer, K. V. W., and Brann, D. C. 1965. Catalogue of the Paleocene and Eocene Mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Pteropoda, Scaphopoda, and Cephalopoda. Bulletins of American Paleontology, 48:1466.Google Scholar
Parker, J. D. 1983. Lower Paleocene to lower Eocene, nonmarine to deep-marine strata of the Simi Hills, Ventura County, California, p. 322. In Squires, R. L. and Filewicz, M. V. (eds.), Cenozoic Geology of the Simi Valley Area, Southern California. Pacific Section, Society of Economic Paleontologists and Mineralogists, Volume and Guidebook.Google Scholar
Pomerol, C., and Feugueur, L. 1974. Bassin de Paris. 2nd ed.Guides Géologiques Régionaux. Masson et Cie, Paris, 216 p.Google Scholar
Saul, L. R. 1983. Notes on Paleogene turritellas, venericardias, molluscan stages of the Simi Valley area, California, p. 7180. In Squires, R. L. and Filewicz, M. V. (eds.), Cenozoic Geology of the Simi Valley Area, Southern California. Pacific Section, Society of Economic Paleontologists and Mineralogists, Volume and Guidebook.Google Scholar
Squires, R. L. 1983. Geologic map of the Simi Valley area, southern California, insert. In Squires, R. L. and Filewicz, M. V. (eds.), Cenozoic Geology of the Simi Valley Area, Southern California. Pacific Section, Society of Economic Paleontologists and Mineralogists, Volume and Guidebook.Google Scholar
Squires, R. L. 1987. Eocene molluscan paleontology of the Whitaker Peak area, Los Angeles and Ventura Counties, California. Los Angeles County Natural History Museum Contributions in Science, 388, 93 p.Google Scholar
Squires, R. L., and Demetrion, R. 1989. An early Eocene pharetronid sponge from the Bateque Formation, Baja California Sur, Mexico. Journal of Paleontology, 63:440442.CrossRefGoogle Scholar
Squires, R. L., and Demetrion, R. 1990. New early Eocene marine gastropods from Baja California Sur, Mexico. Journal of Paleontology, 64:99103.CrossRefGoogle Scholar
Vokes, H. E. 1935. The genus Velates in the Eocene of California. University of California Publications, Department of Geological Sciences Bulletin, 23:381390.Google Scholar
Weaver, C. E. 1943. Paleontology of the marine Tertiary formations of Oregon and Washington. University of Washington, Publications in Geology, 5(1–3), 789 p.Google Scholar
Woods, A. J. C., and Saul, L. R. 1986. New Neritidae from southwestern North America. Journal of Paleontology, 60:636655.CrossRefGoogle Scholar
Zinsmeister, W. J. 1974. Paleocene biostratigraphy of the Simi Hills, Ventura County, California. Unpubl. Ph.D. dissertation, University of California, Riverside, 236 p.Google Scholar