Skip to main content Accessibility help
×
Home

A new pseudolivine gastropod genus from the lower Tertiary of North America

  • Richard L. Squires (a1)

Abstract

A new genus, Calorebama, is proposed for a clade of pseudolivine gastropods (family Buccinidae) that has its earliest species in the lower Paleocene (Danian) of Alabama, its next earliest species in the upper Paleocene (Thanetian) of Alabama, and its subsequent species in the Eocene of California, Oregon, and Washington. Calorebama is characterized by an inflated biconical shape, a biangulate body whorl usually with strong nodes on the shoulder, and fine to medium spiral ribbing that is coarser anterior to the medial pseudolivine groove.

Previously, these pseudolivines now being placed in Calorebama were assigned to the genus Pseudoliva. Study of the literature and every available museum specimen showed Calorebama to have five species and two subspecies, all of which have biostratigraphic integrity.

Calorebama unicarinata (Aldrich) is the earliest species, and it, along with C. tuberculifera (Conrad), are the only known Gulf Coast species. Calorebama dilleri dilleri (Dickerson) is the earliest representative of the genus on the West Coast of North America, and it arrived during the early Eocene (Ypresian). Probable geographic isolation of C. dilleri dilleri in central and southern California resulted in lineage splitting and the appearance of C. dilleri lineata (Gabb), which phyletically evolved into C. inornata (Dickerson). Calorebama dilleri dilleri persisted in northern California and phyletically evolved into C. dilleri kirbyi (Clark), which similarly evolved into C. volutaeformis (Gabb).

Calorebama inornata and C. volutaeformis, the youngest species of the genus, became widely distributed along the West Coast of North America before becoming extinct by the end of the earliest late Eocene.

Copyright

References

Hide All
Adegoke, O. S. 1977. Stratigraphy and paleontology of the Ewekoro Formation (Paleocene) of southwestern Nigeria. Bulletins of American Paleontology, 71(295), 379 p.
Aldrich, T. H. 1886. Preliminary report on the Tertiary fossils of Alabama and Mississippi. Alabama Geological Survey, Bulletin 1, 85 p.
Almgren, A. A., Filewicz, M. V., and Heitman, H. L. 1988. Lower Tertiary foraminiferal and calcareous nannofossil zonations of California: an overview and recommendation, p. 83105. In Filewicz, M. V. and Squires, R. L. (eds.), Paleogene Stratigraphy, West Coast of North America. Pacific Section, Society of Economic Paleontologists and Mineralogists, 58.
Anderson, F. M., and Hanna, G. D. 1925. Fauna and stratigraphic relations of the Tejon Eocene at the type locality in Kern County, California. California Academy of Sciences Occasional Papers, 11, 249 p.
Armentrout, J. M. 1975. Molluscan biostratigraphy of the Lincoln Creek Formation, southwest Washington, p. 1428. In Weaver, D. E., Hornaday, G. R., and Tipton, Ann (eds.), Future Energy Horizons of the Pacific Coast; Paleogene Symposium and Selected Technical Papers. Pacific Section, Society of Economic Paleontologists and Mineralogists.
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.
Clark, B. L. 1929. Stratigraphy and faunal horizons of the Coast Range of California. Privately published, 132 p.
Clark, B. L. 1938. Fauna from the Markley Formation (upper Eocene) on Pleasant Creek, California. Geological Society of America Bulletin, 49:683730.
Clark, B. L., and Woodford, A. O. 1927. The geology and paleontology of the type section of the Meganos Formation (lower middle Eocene) of California. University of California Publications in Geological Sciences, 17:63142.
Conrad, T. A. 1833. Fossil shells of the Tertiary formations of North America, illustrated by figures drawn on stone by T. A. Conrad. Philadelphia, Vol. 1, no. 4, p. 3946. (Harris reprint, 1963, Paleontological Research Institution Reprint, p. 63–74.)
Conrad, T. A. 1860. Descriptions of new species of Cretaceous and Eocene fossils of Mississippi and Alabama. Academy of Natural Sciences of Philadelphia Journal, 2nd ser., 4:275298.
Conrad, T. A. 1865. Catalogue of the Eocene and Oligocene Testacea of the United States. American Journal of Conchology, 1(1):135.
Conrad, T. A. 1866. Check list of invertebrate fossils of North America. Eocene and Oligocene. Smithsonian Miscellaneous Collections, 7(200):141.
Cossmann, A. E. M. 1893. Notes complémentaires sur la faune, Eocènique de l'Alabama. Annales de Géologie et de Paléontologie, 12:151.
Cossmann, A. E. M. 1901. Essais de paléoconchologie comparée. Vol. 4. Privately published, Paris, 294 p.
Davies, A. M. 1935. Tertiary Faunas—A Text-book for Oilfield Palaeontologists and Students of Geology. Vol. 1. The Composition of Teritary Faunas. Thomas Murby and Co., London, 406 p.
Davies, A. M. 1975. Teritary Faunas—A Text-book for Oilfield Palaeontologists and Students of Geology. Vol. 1. The Composition of Tertiary Faunas. Revised and updated by F. E. Eames. George Allen and Unwin, London, 571 p.
Dickerson, R. E. 1914. The fauna of the Siphonalia sutterensis zone in the Roseburg quadrangle, Oregon. California Academy of Sciences Proceedings, 4th ser., 4:113128.
Dickerson, R. E. 1915. Fauna of the type Tejon: its relations to the Cowlitz phase of the Tejon Group of Washington. California Academy of Sciences Proceedings, 4th ser., 5(3):3398.
Dickerson, R. E. 1916. Stratigraphy and fauna of the Tejon Eocene of California. University of California Publications, Department of Geological Sciences Bulletin, 9(17):363524.
Dillwyn, L. W. 1817. A Descriptive Catalogue of Recent Shells Arranged According to the Linnaean Method; with Particular Attention to the Synonymy. Vol. 2. John and Arthur Arch, London, p. 5811092.
d'Orbigny, A. 1850. Prodrome de paléontologie stratigraphie universelle des animaux mollusques et rayonnés, Vol. 1. Paris, 394 p.
Gabb, W. M. 1864. Description of the Cretaceous fossils, p. 55243. In Meek, F. B. and Gabb, W. M., Palaeontology of California. Geological Survey of California, Vol. 1, Palaeontology. Caxton Press, Philadelphia.
Gabb, W. M. 1864. 1869. Cretaceous and Tertiary fossils. Geological Survey of California, Vol. 2, Palaeontology. Caxton Press, Philadelphia, 299 p.
Givens, C. R. 1974. Eocene molluscan biostratigraphy of the Pine Mountain area, Ventura County, California. University of California Publications in Geological Sciences, 109, 107 p.
Givens, C. R., and Kennedy, M. P. 1979. Eocene molluscan stages and their correlation, San Diego area, California, p. 8195. In Abbott, P. L. (ed.), Eocene Depositional Systems, San Diego, California. Pacific Section, Society of Economic Paleontologists and Mineralogists, Field Trip Guide, Geological Society of America Annual Meeting.
Gregorio, M. A. de. 1890. Monographic de la faune Eocènique de l'Alabama et surtout de celle de Claiborne de l'étage Parisien. Annales de Géologie et de Paléontologie, vols. 7, 8, 316 p.
Hanna, M. A. 1927. An Eocene invertebrate fauna from the La Jolla quadrangle, California. University of California Publications, Department of Geological Sciences Bulletin, 16(8):247398.
Harris, G. D. 1896. The Midway Stage. Bulletins of American Paleontology, 1(4), 156 p.
Harris, G. D. 1899. The Lignitic Stage. Pt. 1. Scaphopoda, Gastropoda, Pteropoda, and Cephalopoda. Bulletins of American Paleontology, 3(11), 128 p.
Heller, P. L., and Dickinson, W. R. 1985. Submarine ramp facies model for delta-fed, sand-rich turbidite systems. American Association of Petroleum Geologists Bulletin, 69:960976.
Keen, A. M., and Bentson, H. 1944. Check list of California Tertiary marine Mollusca. Geological Society of America Special Papers, 56, 280 p.
Melvill, J. C. 1903. The genera Pseudoliva and Macron. Journal of Conchology, 10(10):320; 10(11):321–330.
Merriam, C. W. 1941. Fossil Turritellas from the Pacific Coast region of North America. University of California Publications, Department of Geological Sciences Bulletin, 26(1):1214.
Merriam, C. W., and Turner, F. E. 1937. The Capay middle Eocene of northern California. University of California Publications, Department of Geological Sciences Bulletin, 24(6):91114.
Miles, G. A. 1981. Planktonic foraminifers of the lower Tertiary Roseburg, Lookingglass, and Flournoy Formations (Umpqua Group), southwest Oregon, p. 85103. In Armentrout, J. M. (ed.), Pacific Northwest Cenozoic Biostratigraphy. Geological Society of America, Special Paper 184.
Moore, E. J. 1962. Conrad's Cenozoic fossil marine mollusk type specimens at the Academy of Natural Sciences of Philadelphia. Academy of Natural Sciences of Philadelphia Proceedings, 114(2):23120.
Nilsen, T. H. 1987. Stratigraphy and sedimentology of the Eocene Tejon Formation, western Tehachapi and San Emigdio Mountains, California. U.S. Geological Survey Professional Paper 1268, 110 p.
Palmer, K. V. W. 1927. The Veneridae of eastern America, Cenozoic and Recent. Palaeontographica Americana, 1(5):209522.
Ponder, W. F., and Darragh, T. A. 1975. The genus Zemira H. and A. Adams (Mollusca: Neogastropoda). Journal of the Malacological Society of Australia, 3(2):89109.
Rafinesque, C. S. 1815. Analyse de la nature; ou, tableau de l'universe et des corps organisés. Palermo, 224 p.
Reeve, L. A. 1846. Conchologia Iconica, 3, Monoceros. London. 4 pls. (with pl. explan.).
Saul, L. R. 1983. Notes on Paleogene turritellas, venericardias, and 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.
Schenck, H. G., and Keen, A. M. 1940. California fossils for the field geologist. Stanford University, 86 p.
Siesser, W. G., Fitzgerald, W. G., and Kronman, D. J. 1985. Correlation of Gulf Coast provincial Paleogene stages with European standard stages. Geological Society of America, Bulletin, 96:827831.
Smith, J. T. 1975. Age, correlation, and possible Tethyan affinities of mollusks from the Lodo Formation of Fresno County, California, p. 464483. In Weaver, D. W., Hornaday, G. R., and Tipton, Ann (eds.), Future Energy Horizons of the Pacific Coast. Paleogene Symposium and Selected Technical Papers. Pacific Section, Society of Economic Paleontologists and Mineralogists, Annual Meeting.
Sowerby, G. B. II. 1859. Monograph of the genus Pseudoliva, Swains. Thesaurus Conchyliorum, 3(19):7376.
Squires, R. L. 1984. Megapaleontology of the Eocene Llajas Formation, Simi Valley, California. Los Angeles County Natural History Museum Contributions in Science, 350, 76 p.
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.
Stewart, R. B. 1927. Gabb's California fossil type gastropods. Academy of Natural Sciences of Philadelphia Proceedings, 78:287447.
Swainson, W. 1840. A Treatise on Malacology; or the Natural Classification of Shells and Shell-fish. Longman and others, London, 419 p.
Thiele, J. 1931. Handbuch der systematischen Weichtierkunde. Vol. 1. Asher and Company, Amsterdam, 778 p.
Toulmin, L. D. 1977. Stratigraphic distribution of Paleocene and Eocene fossils in the eastern Gulf Coast region. Geological Survey of Alabama, Monograph 13, Vol. 1, 602 p.
Turner, F. E. 1938. Stratigraphy and Mollusca of the Eocene of western Oregon. Geological Survey of America Special Paper 10, 130 p.
Van Winkle, K. E. 1918. Paleontology of the Oligocene of the Chehalis Valley, Washington. University of Washington Publications in Geology, 1(2):6997.
Vokes, H. E. 1939. Molluscan faunas of the Domengine and Arroyo Hondo Formations of the California Eocene. Annals of the New York Academy of Sciences, 38, 246 p.
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.
Wenz, W. 1938–1944. Gastropoda. Vol. 6, 7 parts, p. 11639. In Schindewolf, O. H. (ed.), Handbuch der Paläozoologie. Gebrüder Borntraeger, Berlin.
Zinsmeister, W. J. 1983. New late Paleocene molluscs from the Simi Hills, Ventura County, California. Journal of Paleontology, 57:12821303.

Related content

Powered by UNSILO

A new pseudolivine gastropod genus from the lower Tertiary of North America

  • Richard L. Squires (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.