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Thursday, August 6, 2020 | History

2 edition of New species of Mollusca from the Eocene deposits of southwestern Texas found in the catalog.

New species of Mollusca from the Eocene deposits of southwestern Texas

Julia Anna Gardner

New species of Mollusca from the Eocene deposits of southwestern Texas

by Julia Anna Gardner

  • 346 Want to read
  • 17 Currently reading

Published by U.S. Govt. Print. Off. in [Washington .
Written in English

    Subjects:
  • Mollusks, Fossil -- Texas -- Lower Rio Grande Valley.,
  • Paleontology -- Texas -- Lower Rio Grande Valley -- Eocene.,
  • Paleontology -- Eocene.

  • Edition Notes

    Includes bibliographical references and index.

    Statementby Julia Gardner.
    SeriesGeological Survey professional paper -- 131-D, Shorter contributions to general geology
    The Physical Object
    Pagination109-117 p., [5] p. of plates :
    Number of Pages117
    ID Numbers
    Open LibraryOL22943409M

    There is probably no species among all the known fossil rnollusca concerning the geological age of which paleontologists are more in ac­ cord than Carditaplanicosta Lamarck. It is a well-known form in the European Eocene, and it is quite as characteristic of the Eocene of our Atlantic and Gulf borders as of the Eocene of by: 2. The most complete compendium of Miocene species created since , this long-awaited resource lists nearly species. It contains illustrations of species, including more than 60 not found in any previous book and 26 newly discovered. It describes Chesapeake molluscan faunas in terms of local geology, paleoceanography, and marine Reviews: 1.

      I cannot identify the species without seeing the aperatures. For me, I have to see the aperature to see the dentation that differentiates the species between B. sagum and B. texanum. The photo in the center and the one on the right appear to have the same specimen in them, just different views which is good. Elimia tenera, formerly known as Goniobasis tenera, is an extinct species of freshwater snail with an operculum, in the aquatic gastropod mollusk family Pleuroceridae. This species flourished during the Eocene and is now known only from the fossil record.. The genus name Elimia was restored to this species in ; formerly it was placed in GoniobasisFamily: Pleuroceridae.

    Gabb, W. M. Descriptions of new species of American Tertiary and Cretaceous Fossils. Journal of the Academy of Natural Sciences, Philadelphia, vol. 4: , 3 pl. Gabb, W. M. Description of new species of Cretaceous fossils from New Jersey, Alabama and Mississippi. Proceedings of the Academy of Natural Sciences of Philadelphia. Lasting nearly 22 million years, the Eocene is the longest epoch of the Cenozoic. During this time, the first ancestors and close relatives of modern mammal species appeared. Many of these modern mammal groups appear at the beginning of the Eocene, a period of dramatic global warming called the Paleocene-Eocene thermal maximum.


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New species of Mollusca from the Eocene deposits of southwestern Texas by Julia Anna Gardner Download PDF EPUB FB2

Get this from a library. A geologic reconnaissance in the Gulf coastal plain of Texas near the Rio Grande: [new species of mollusca from the Eocene deposits of southwestern Texas]. [Arthur C Trowbridge; Julia Anna Gardner; Geological Survey (U.S.),].

|a A geologic reconnaissance in the Gulf coastal plain of Texas near the Rio Grande: |b [new species of mollusca from the Eocene deposits of southwestern Texas] / |c by A.C. Trowbridge [and Julia Gardner]. 3 |a New species of mollusca from the eocene deposits of southwestern Texas 1.

New species of mollusca from the Eocene deposits of southwestern Texas / Julia Gardner --E. Preliminary report on fossil vertebrates of the San Pedro Valley, Ariz., with descriptions of new species of Rodentia and Lagormorpha / J.W.

Gidley --F. Revision of the flora of the Green River formation, with descriptions of new species / F.H. Knowlton. THE EOCENE MOLLUSCA OF THE STATE OF TEXAS. BY PROFESSOR ANGELO HEIJ,PRIN. The followincr list embraces, so far as I know, all the Eocene Mol- lusca that have thus far been noted to occur in the Gulf deposits of the State of Texas.

For my data I have used the type series of Gabb and Conrad, the major portion of which is in the possession of theCited by: 1. Fourteen species of echinoids ranging in age from early to late Eocene, including four new species, are described from Texas. New taxa include. Mollusca Invertebrate Paleontology.

Options: Hide icon key. Show only PDF references. Show reference number. Hide marginal icons. Fetch as Endnote XML. Sort By: References (click for information) PDFs (click to retrieve PDF) Bibliographic information checked Bibliographic information not checked.

Fossils of a single pteropod species were found in an isolated carbonate deposit within middle Eocene deep-water strata of the Humptulips Formation in western Washington State, U.S.A. The carbonate formed at a cold seep where fluids containing high concentrations of hydrocarbons, principally methane, emanated from the seafloor.

Anaerobic oxidation of the methane by Cited by: 4. The fauna of gastropods and bivalves from the amber-bearing lithostratigraphic units of the Simojovel area, Chiapas is reported, including the description of two new species and one subspecies: Turbinella maya new species, Melongena corona tzeltal new subspecies and Agladrillia (Eumetadrillia) vermeiji new species.

Stratigraphic affinities of the previously Cited by: Eocene deposits of central Uzbekistan yielded 14 species of holoplanktonic molluscs (1 Pterotracheoidea, 9 Limacinoidea, 3 Cavolinioidea and 1. The geologic record of the shallow-marine gastropod genus Pseudoperissolax Clark, is documented in detail for the first time in a region of the northeast Pacific extending from southwestern Washington to northern Baja California, Mexico.

This genus, which has been erroneously equated with the nomen dubium Perrisolax Gabb,comprises a very small Cited by: 1. deposits of that age. For the first time, we describe a PETM assemblage of pteropods (planktic mollusks), consisting of six species representing three genera (Altaspiratella, Heliconoides and Limacina).

Four species could be identified to species level, and one of these, Limacina novacaesarea sp. nov., is described as new. Only one species in the Miyara fauna is identified with a species of restricted occurrence in the Eocene deposits of Kyushu; Melanatria kahoensis (Nagao) is known from the Takeya Formation of supposed middle Eocene age.

Another species is identified tentatively as OrtJiaulax japonicus Nagao, a species found in theCited by: 7. Pyramidelloides dolini n. sp., older strongly sculptured eulimid, is described from the Middle Eocene of southwestern Alabama (Gosport Sand). This new species probably had a planktotrophic larval stage similar to the recent Indo-West-Pacific species.

Relationship with the species of the genus Palisadia is discussed. Geographic distributions of both the fossil and the Cited by: 1. Researchers have found fossils of Eocene horse species in Colorado.

Deeper deposits contain smaller species, and more recent deposits contain larger species. How does this observation support the theory of evolution. It suggests that species are unchanging and of recent origin. It proves that environments have changed over time.

The rodents from three localities in the Pruett Formation of the Buck Hill Volcanic Group from the Big Bend region of Texas are described. Included are the paramyids Thishemys plicatus, Microparamys minutus, Lophiparamys sp. indet., and at least one indeterminate paramyid; new species, M. boskeyi, of the cylindro- dont genus Mysops and hystricognathous rodent of.

Middle Eocene of Houston Co., Texas. GCSNew zone in Cook Mountain Formation, the Crassatella texalta Harris Turritella cortezi Bowles zone: Stenzel, H.B. American Association of Petroleum Geologists Bulletin, vol. 24, pp.Pelecypoda from the Type Locality of the Stone City Beds (Middle Eocene) of Texas.

On Marine Eocene, fresh-water Miocene, and other fossil Mollusca of western North America: USGS Bulletin 18 [Charles A. White] on *FREE* shipping on qualifying offers. The United States Geological Survey (USGS) is a scientific organization created inand is part of the U.S.

government. Their scientists explore our environment and ecosystems. Eocene to Miocene holoplanktonic Mollusca (Gastropoda) of the Aquitaine Basin, southwest France Article (PDF Available) in Scripta Geologica () July with Reads. ─── New species of New Zealand Mollusca from the South Island, Stewart Island and Chatham Islands.

Records of the Auckland Institute and Museum 3: ─── Phylogeny of the molluscan genus Verconella, with descriptions of.

New morphologic and geographic data on the neritid gastropod Nerita (Theliostyla) triangulata Gabb,from the Eocene of the Pacific coast of North America. The Veliger, – Thiele, J.

Cited by: 4. Eocene age sediments along the northern Gulf of Mexico, especially in Mississippi and Texas, contain some very well preserved specimens of sepioid cephalopods (relatives of cuttlefish).

These are often considered to be an oddity, because they produced a skeleton with a tooth-like projection at the end that has a minor resemblance to the jaw.The deposits have stratigraphic ages of Late Eocene (~ - Ma). The bentonites in these deposits have varying colors, purities and brightness affording them diverse industrial uses.

The distribution and geologic character of the high purity white and blue bentonite suggests that the deposit represents an accumulation of volcanic ash in a Cited by: 1.Start studying Chapter 13 Biology.

Learn vocabulary, terms, and more with flashcards, games, and other study tools. Researchers have found fossils of Eocene horse species in Colorado. Deeper deposits contain smaller species, and more recent deposits contain larger species.