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Neogene Paleontology In The Northern Dominincan Republic 25 The Superfamily Cypraeoidea Families Cypraeidae Ovulidae Triviidae And Eratoidae Mollusca Gastropoda
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Book Synopsis Neogene Paleontology in the Northern Dominincan Republic. 25. the Superfamily Cypraeoidea (Families Cypraeidae, Ovulidae, Triviidae, and Eratoidae) (Mollusca: Gastropoda) by : Lindsey Groves
Download or read book Neogene Paleontology in the Northern Dominincan Republic. 25. the Superfamily Cypraeoidea (Families Cypraeidae, Ovulidae, Triviidae, and Eratoidae) (Mollusca: Gastropoda) written by Lindsey Groves and published by . This book was released on 2021-08-31 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neogene Paleontology of the Northern Dominican Republic by : Thomas R. Waller
Download or read book Neogene Paleontology of the Northern Dominican Republic written by Thomas R. Waller and published by . This book was released on 2011 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on approximately 25,000 specimens from the Miocene and Pliocene of the Cibao Valley, northern Dominican Republic, the bivalve family Propeamussiidae is represented by two genera and four species, including two new species, Cyclopecten acuminatus and C. zalaya; the family Pectinidae is represented by three subfamilies, six tribes, 18 genera, and 35 species. New taxa in the Pectinidae include six new genera ( Interchlamys , Chagrepecten , Gurabopecten , Paraleptopecten , Zamorapecten , and Antillipecten ), 15 new species ( Caribachlamys guayubinensis , C. jungi , Mimachlamys blowi , M. vokesorum , Palliolum ? cibaoense , Argopecten parathetidis , Chagrepecten paracactaceus , Gurabopecten uniplicatus , Lindapecten baitoaensis , L. paramuscosus , Euvola gurabensis , Zamorapecten maoensis , Antillipecten janicoensis , A. microlineatus , and A. quemadosensis) , one species in open nomenclature ( Paraleptopecten sp. a ), and one new subspecies ( Argopecten eccentricus lacabrensis ). In addition, a new name, Euvola jamaicensis , replaces the name E. barretti (Woodring, 1925). Lectotypes are designated for Cyclopecten guppyi (Dall, 1898) and Cryptopecten phrygium (Dall, 1886). Four of the genera (20%) and all but four of the species (90%) in the two families are extinct. Among the Pectinidae, 60% of the species but only 5% of the genera are endemic to the northern Dominican Republic. The high species endemism is possibly an artifact due to the absence in many other regions of precisely correlative strata as well as to differences in facies and sampling methods. Assemblages of the two families change composition going upward in stratigraphic sections measured along each major river, reflecting increasing depth of deposition, changing bottom conditions, and association with coral reefs or marine grasses and algae. Evolutionary changes within particular lineages help to resolve several previous biostratigraphic uncertainties and controversies, including the age of limestones on the Río Yaque del Norte and in the Guayubín area. Detailed study of these changes has also shed new light on the causes of dramatic faunal differences between stratigraphic sections on the Río Gurabo and Río Mao, separated by only 10 km.
Book Synopsis Bulletins of American Paleontology by : Peter Jung
Download or read book Bulletins of American Paleontology written by Peter Jung and published by . This book was released on 1990-06-01 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neogene Paleontology in the Northern Dominican Republic 18 by : Columbia University
Download or read book Neogene Paleontology in the Northern Dominican Republic 18 written by Columbia University and published by Wentworth Press. This book was released on 2019-03-11 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Book Synopsis Bulletins of American Paleontology by : Harold E. Vokes
Download or read book Bulletins of American Paleontology written by Harold E. Vokes and published by . This book was released on 1989-12-01 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bulletins of American Paleontology Vol. 90 by : Peter Jung
Download or read book Bulletins of American Paleontology Vol. 90 written by Peter Jung and published by . This book was released on 1986-05 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neogene Paleontology of the Northern Dominican Republic by : James Robert Freiheit
Download or read book Neogene Paleontology of the Northern Dominican Republic written by James Robert Freiheit and published by . This book was released on 2009 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gastropods of the family Strombidae are well-known and important constituents of modern tropical marine communities. The biology of several modern species has been throughly investigated due to their economic value as a human food resource. Unlike many gastropods, strombids undergo pseudo-determinate growth; they therefore present intriguing possibilities for investigation of size-related patterns of change. Unfortunately, they also display a wide degree of intraspecific morphologic variation, making reliable determination of species identity difficult. In this paper, we examine members of this family from the late Miocene and early Pliocene deposits of the Cibao Valley, located in the northwestern portion of the Dominican Republic on the Caribbean island of Hispaniola. After brief descriptions of the general geologic setting of the Cibao Valley and the biology of modern strombids, we delineate the observed geographic and stratigraphic ranges for species of Strombus and Lobatus in the Cibao Valley. At least 11 species of strombids have been reported from the Dominican Republic. Based on the high degree of intraspecific morphologic variation common in these genera and upon examination of individual specimens, we synonomize several older names and recognize only five species in two genera from the Cibao sequence: S. bifrons, S. proximus, L. haitensis, L. galliformis, and L. dominator. We describe some aspects of strombid paleoecology and summarize spatiotemporal patterns of distribution. Differences exist between modern strombid populations and our collections of Miocene Dominican ones; strombids of the Cibao Valley are in general smaller and appear to have occupied somewhat different habitats than those of their modern relatives.
Book Synopsis Neogene Paleontology in the Northern Dominican Republic by : A. W. Janssen
Download or read book Neogene Paleontology in the Northern Dominican Republic written by A. W. Janssen and published by . This book was released on 1999 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Holoplankton gastropod faunas from the northern Dominican Republic Neogene, contained in the collections of the Natural History Museum at Basel (Switzerland) comprise two species of Heteropoda: Atlanta cordiformis (Gabb, 1873 and Protatlanta rotundata (Gabb, 1873), and 17 euthecosomatous pteropods: Limacina (Striolimacina) imitans (Gabb, 1873), L. (Striolimacina) inflata (d'Orbigny, 1836), Limacina sp. indet., Creseis acicula (Rang, 1828), Hyalocylis striata (Rang, 1828), Styliola subula (Quoy and gaimard, 1827), Cuvierrina astesana (Rang, 1829)?. Cuvierina sp., Clio cuspidata (Bosc, 1802)?, C. pyramidata Linné. 1767 forma lanceolata (Lesuer, 1813). Clio sp., Cavolinia gypsorum (Bellardi, 1873), C. aff gypsorum, C. mexicana (Collins, 1934), C. cf. tridentata (Niebuhr, 1775), Diacria trispinosa (de Blainville, 1821) and Edithinella sp. Edithinella undulata (Gabb, 1873), recorded in the literature from the same area but not represented in the present collection, is included on the basis of the type material. The number of holoplanktonic gastropod species from the Dominican Republic is thus 20. The name Striolimacina is introduced to replace Planorbella Gabb, 1873a non Haldemann, 1843 (Mollusca). From the Baitoa Formation (Río Yaque del Norte section), of assumed late Early Miocene age, a single pteropod (Edithinella sp.) was recorded. The Late Miocene Cercado Formation (Río Gurabo: Globorotalia humerosa Zone. Río Cana: no biozone indicated) and some samples lacking lithostratigraphical data, of ? Late Miocene age (Río Mao) yeilded nine species, among which only Cavolinia gypsorum is indicative of a Late Miocene (Tortonian-Messinian) age. Other species are known only locally or have longer ranges. Specimens from the late Early Pliocene Gurabo Formation (Globorotalia margaritae Zone: Río Gurabo) and the Mao Adentro Limestone (G. maragaritae Zone: Río Cana), the Early to middle Pliocene Mao Formation (G. mararitae/miocenica Zone: Río Gurabo section), and a sample lacking lithostratigraphical data, of ?late Early Pliocene age (Río Yaque del Norte section) yielded 10 holoplanktonic mollusk species. So far as they could be identified to species these invariably belong to taxa ranging at least through the entire Pliocene, and still occur today.
Book Synopsis Neogene Tonnoidean Gastropods of Tropical and South America by : A. G. Beu
Download or read book Neogene Tonnoidean Gastropods of Tropical and South America written by A. G. Beu and published by . This book was released on 2010 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neogene Paleontology in the Northern Dominican Republic by :
Download or read book Neogene Paleontology in the Northern Dominican Republic written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neogene Paleontology in the Northern Dominican Republic by : Willem Aaldert Van den Bold
Download or read book Neogene Paleontology in the Northern Dominican Republic written by Willem Aaldert Van den Bold and published by . This book was released on 1988 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: One hundred and forty-five species are reported from the Cercado, Gurabo and Mao formations of the Río Cana sections on the south flank of the Cibao Valley, northern Dominican Republic. Twenty-one species are new: Argilloecia wespa, Bythoceratina monocereos, Caribella geisteri, Cytheropteron (Aversovalva) bijuduvali, Vytheropteron (Cytheropteron) dominicanum, Cytheropteron (Cytheropteron) guraboense, Echinocythereis madremaestrae, Eucytherura fithianae, Munseyella jungi, Munseyella saundersi, Paracytheridea calcitrapa, Parakrithe alta, Pedicythere variabilis, Phlyctocythere vurva, Phylctocythere recta, Phyltocythere stricta, Proteoconcha? evai, Pterygocythereis Illinasi, Radimella ovata, Xestoleberis antillea and Xestoleberis duo. The uppermost Cercado Formation and the Gurabo and Mao formations belong to the Radimella confragosa Zone (upper Miocene-Pliocene). Below the Cercado Formation the lower part of this zone coincides with the upper part of the brackish-water Cyprideis pascagoulansis Zone (middle to upper Miocene). The two sections show increasing depth of deposition with decreasing age, the Río Cana sections farther west. Underlying beds in the Río Yaque del Norte sections near Santiago were deposited at greater depth than those of the Río Mao, Río Gurabo, and Río Cana sections farther west. Underlying beds in the Río Yaque sections (Arroyo López) carry a fauna that is similar to that of the amber sites on the south flank of the Cordillera Central and to that of the Anguilla Formation of the Lesser Antilles, which are believed to be of similar age (close to early-middle Miocene boundary).
Book Synopsis Neogene Paleontology in the Northern Dominican Republic by : Ann Budd Foster
Download or read book Neogene Paleontology in the Northern Dominican Republic written by Ann Budd Foster and published by . This book was released on 1986 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genera Montastraea and Solenastrea by : Ann F. Budd
Download or read book Genera Montastraea and Solenastrea written by Ann F. Budd and published by . This book was released on 1991 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multivariate statistical analyses are used to distinguish species in the genera Montastraea and Solenastrea through a continuous Neogene sequence (five Ma time interval) in the Cibao Valley of the northern Dominican Republic. Some older (by approximately 10 Ma) material from the same region also is included in the analyses. The material consists of approximately 280 colonies of Montrastraea (74 of which are measured) from a total of 59 localities, and 66 colonies of Solenastrea (15 of which are measured) from a total of 37 localities. Twelve additional colonies of Montastraea from the Vokes' collections of the same localities are also measured, and added to the data set. The material is first sorted into two genera on the basis of qualitative examination of septal structure, the structure of the columella and associated paliform lobes, and the texture of the coenosteum. Sixteen characters consisting of linear distances and counts are measured in transverse thin-sections of ten corallites per colony in Montastraea; ten similar characters are measured on the upper surface of ten calices per colony in Solenastrea. The data are analyzed using cluster and canonical discriminant analysis to group the colonies into clusters representing species. Seven species are so defined in Montastraea and two in Solenastrea. These groupings are then used statistically to reclassify type specimens for 12 of the 17 defined species of Montastraea and four of the seven described species of Solenastrea.
Book Synopsis Neogene Paleontology in the Northern Dominican Republic by : Ann Budd Foster
Download or read book Neogene Paleontology in the Northern Dominican Republic written by Ann Budd Foster and published by . This book was released on 1987-06-01 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four species of articulate brachiopods: Tichosina? lecta (Guppy, 1866); Terebratulina cailletri Crosse, 1865; Argyrotheca johnsoni Cooper, 1934; and Lacazella caribbeanensis Cooper, 1977 have been described and illustrated from the Río Gurabo, Río Cana and Arroyo Zalaya sections of the Neogene of the Dominican Republic. T.? lecta and L. caribbeanensis have previously been recorded from the Tertiary of the Caribbean area; A. johnsoni, T. cailleti and L. caribbeanensis from the Recent of the same region. Brachiopod occurrences in the Dominican Republic Neogene generally support the paleoecological reconstruction of Saunders, Jung, and Biju-Duval (1986) of increasingly deeper-water conditions proceeding upsection and downstream in both the Río Gurabo and Río Cana valleys.
Book Synopsis Bulletins of American Paleontology by :
Download or read book Bulletins of American Paleontology written by and published by . This book was released on 1986 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Encyclopedia of Texas Seashells: Identification, Ecology, Distribution, and History by : John Wesley Tunnell
Download or read book Encyclopedia of Texas Seashells: Identification, Ecology, Distribution, and History written by John Wesley Tunnell and published by Texas A&M University Press. This book was released on 2010 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to seashells found in Texas that discusses the historical uses of mollusks and seashells, the history of conchology and malacology in the state, habitats, and other related topics, and provides information for identifying nine hundred species.
Download or read book The Mollusks written by Charles F. Sturm and published by Universal-Publishers. This book was released on 2006 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mollusks have been important to humans since our earliest days. Initially, when humans were primarily interested in what they could eat or use, mollusks were important as food, ornaments, and materials for tools. Over the centuries, as human knowledge branched out and individuals started to study the world around them, mollusks were important subjects for learning how things worked. In this volume, the editors and contributors have brought together a broad range of topics within the field of malacology. It is our expectation that these topics will be of interest and use to amateur and professional malacologists.
