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A new genus of cassiduloid echinoid from the lower Eocene of the Pacific coast of western North America and a new report of Cassidulus ellipticus Kew, 1920, from the lower Eocene of Baja California Sur, Mexico

Published online by Cambridge University Press:  20 May 2016

Richard L. Squires  and
Robert A. Demetrion
Richard L. Squires
Affiliation:
Department of Geological Sciences, California State University, Northridge 91330
Robert A. Demetrion
Affiliation:
Holmes International Middle School, 9351 Paso Robles Avenue, Northridge 91330
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Abstract

The cassiduloid echinoid Calilampas californiensis n. gen. and sp. is described from middle lower Eocene (“Capay Stage”) shallow-marine sandstones in both the middle part of the Bateque Formation, Baja California Sur, Mexico, and the lower part of the Llajas Formation, southern California. The new genus is tentatively placed in family Pliolampadidae. The cassiduloid Cassidulus ellipticus Kew, 1920, previously known only from the “Capay Stage” in California, is also present in “Capay Stage” shallow-marine sandstones of the Bateque Formation.

Type
Research Article
Information
Journal of Paleontology , Volume 69 , Issue 3 , May 1995 , pp. 509 - 515
Copyright
Copyright © The Paleontological Society 

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References

Agassiz, L., and Desor, P. J. E. 1847. Catalogue raisonné des échinides. Annals des Sciences Naturelles, Série 3, Volumes 6–8, 167 p.Google Scholar
Almgren, A. A., Fliewicz, M. V., and Heitman, H. L. 1988. Lower Tertiary foraminiferal and calcareous nannofossil zonation of California: an overview and recommendation, p. 83–105. In Filewicz, M. V. and Squires, R. L. (eds.), Paleogene Stratigraphy, West Coast of North America. Pacific Section, Society of Economic Paleontologists and Mineralogists, Book 58, Los Angeles.Google Scholar
Anderson, F. M. 1905. A stratigraphic study in the Mount Diablo Range of California. Proceedings of the California Academy of Sciences, Series 3, 2:155–248.Google Scholar
Claus, C. 1880. Grundzüge der Zoologie, 4th ed. Volume 1. Marburg and Leipzig, 822 p.Google Scholar
Conrad, T. A. 1850. Descriptions of one new Cretaceous and seven new Eocene fossils. Journal of the Academy of Natural Sciences of Philadelphia, Series 2, 2:39–41.Google Scholar
Cooke, C. W. 1959. Cenozoic echinoids of eastern United States. U. S. Geological Survey Professional Paper 321, 106 p.CrossRefGoogle Scholar
Cushman, J. A., and McMasters, H. H. 1936. Middle Eocene foraminifera from the Llajas Formation, Ventura County, California. Journal of Paleontology, 10:497–517.Google Scholar
Fourtau, R. 1909. Note sur les échinides fossiles recueillis par M. Teilhard de Chardin dans l'Eocene des environs de Minieh. Bulletin de l'Institut de Égypt, Série 5, 1:122–155.Google Scholar
Grant, U. S. IV, and Hertlein, L. G. 1938. The west American Cenozoic Echinoidea. Publications of the University of California at Los Angeles in Mathematical and Physical Sciences, 2:1–225.Google Scholar
Kappeler, K. A., Squires, R. L., and Fritsche, A. E. 1984. Transgressive marginal-marine deposits of the Avenal Sandstone, Reef Ridge, central California, p. 9–27. In Blueford, J. R. (ed.), Kreyenhagen Formation and Related Rocks. Pacific Section, Society of Economic Paleontologists and Mineralogists, Book 37, Los Angeles.Google Scholar
Keenan, M. F. 1932. The Eocene Sierra Blanca Limestone at the type locality in Santa Barbara County, California. Transactions of the San Diego Society of Natural History, 7:53–84.Google Scholar
Kew, W. S. W. 1920. Cretaceous and Cenozoic Echinoidea of the Pacific coast of North America. University of California Publications, Bulletin of the Department of Geology, 12:23–236.Google Scholar
Kier, P. M. 1962. Revision of the cassiduloid echinoids. Smithsonian Miscellaneous Collections, 144:1–262.Google Scholar
Kier, P. M. 1966. Cassiduloids, p. U492–U523. In Moore, R. C. (ed.), Treatise on Invertebrate Paleontology, Pt. U, Volume 2, Echinodermata 3. Geological Society of America and University of Kansas Press, Lawrence.Google Scholar
Lamarck, J. B. 1801. Système des animaux san vertèbres. Paris, 432 p.Google Scholar
McLean, H., Hausback, B. P., and Knapp, J. H. 1985. Reconnaissance geologic map of part of the San Isidro quadrangle, Baja California Sur, Mexico. U. S. Geological Survey, Miscellaneous Field Studies Map MF-1799 (scale 1:125,000).Google Scholar
Mina, F. 1956. Bosquejo geológico de la part sur de la peninsula de Baja California. Twentieth International Geological Congress, Excursion A-7:1–77.Google Scholar
Mina, F. 1957. Bosquejo geológico del Territorio Sur de la Baja California. Asociacíon Mexicana de Geólogos Petroleros Boletín, 9:139–269.Google Scholar
Page, B. M., Marks, J. G., and Walker, G. W. 1951. Stratigraphy and structure of mountains northeast of Santa Barbara, California. Bulletin of the American Association of Petroleum Geologists, 35:1727–1780.Google Scholar
Sandy, M. R., Squires, R. L., and Demetrion, R. 1995. Middle Eocene terebratulid brachiopods from the Bateque Formation, Baja California Sur, Mexico. Journal of Paleontology (in press).CrossRefGoogle Scholar
Seiden, H. 1972. Geology of Las Llajas Canyon, Ventura County, California. Unpubl. , University of California at Los Angeles, 33 p.Google Scholar
Squires, R. L. 1983. Geologic map of the Simi Valley area, southern California (scale 1:24,000). 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. 1984. Megapaleontology of the Eocene Llajas Formation, Simi Valley, California. Natural History Museum of Los Angeles County, Contributions in Science, 350, 76 p.Google Scholar
Squires, R. L. 1990a. New Paleogene siliquariid and vermetid gastropods from the Pacific coast of southwestern North America. The Veliger, 33:286–292.Google Scholar
Squires, R. L. 1990b. First occurrence of the Tethyan bivalve Nayadina (Exputens) in Mexico, and a review of all species of this North American subgenus. The Veliger, 33:305–316.Google Scholar
Squires, R. L. 1990c. New Paleogene Fimbria (Mollusca: Bivalvia) from the Pacific coast of southwestern North America. Journal of Paleontology, 64:552–556.CrossRefGoogle Scholar
Squires, R. L., and Demetrion, R. 1989. An early Eocene pharetronid sponge from the Bateque Formation, Baja California Sur, Mexico. Journal of Paleontology, 63:440–442.CrossRefGoogle Scholar
Squires, R. L., and Demetrion, R. 1990a. New early Eocene marine gastropods from Baja California Sur, Mexico. Journal of Paleontology, 64:99–103.CrossRefGoogle Scholar
Squires, R. L., and Demetrion, R. 1990b. New Eocene bivalves from Baja California Sur, Mexico. Journal of Paleontology, 64:382–391.CrossRefGoogle Scholar
Squires, R. L., and Demetrion, R. 1991. Early Eocene macrofaunal comparisons between the Tepetate and Bateque Formations, Baja California Sur, Mexico. Geological Society of America, Program with Abstracts, Annual Meeting, 23:A194.Google Scholar
Squires, R. L., and Demetrion, R. 1992. Paleontology of the Eocene Bateque Formation, Baja California Sur, Mexico. Natural History Museum of Los Angeles County, Contributions in Science, 430, 55 p.Google Scholar
Squires, R. L., and Demetrion, R. 1994a. New reports of Eocene mollusks from the Bateque Formation, Baja California Sur, Mexico. The Veliger, 37(2):125–135.Google Scholar
Squires, R. L., and Demetrion, R. 1994b. A new species of the oligopygoid echinoid Haimea from the lower Eocene of Baja California Sur, Mexico. Journal of Paleontology, 68:846–851.CrossRefGoogle Scholar
Suter, S. J. 1994. Cladistic analysis of cassiduloid echinoids: trying to see the phylogeny for the trees. Biological Journal of the Linnean Society, 53:31–72.CrossRefGoogle Scholar
Vedder, J. G. 1972. Revision of stratigraphic names for some Eocene formations in Santa Barbara and Ventura Counties, California. U. S. Geological Survey, Bulletin 1354-D:1–12.Google Scholar