DOCSLIB.ORG

How to Cite Complete Issue More Information About This

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
How to Cite Complete Issue More Information About This Boletín de la Sociedad Geológica Mexicana ISSN: 1405-3322 Sociedad Geológica Mexicana, A.C. Salahi, Amir; Ghaderi, Abbas; Ashouri, Ali Reza; Cristín, Alejandro; Senemari, Saeedeh Systematic paleontology and taphonomic studies of Ypresian mollusks at the Kopet-Dagh Basin, NE Iran Boletín de la Sociedad Geológica Mexicana, vol. 71, no. 3, 2019, September-December, pp. 773-804 Sociedad Geológica Mexicana, A.C. DOI: https://doi.org/10.18268/BSGM2019v71n3a9 Available in: https://www.redalyc.org/articulo.oa?id=94366148009 How to cite Complete issue Scientific Information System Redalyc More information about this article Network of Scientific Journals from Latin America and the Caribbean, Spain and Journal's webpage in redalyc.org Portugal Project academic non-profit, developed under the open access initiative Boletín de la Sociedad Geológica Mexicana / 2019 / 773 Systematic paleontology and taphonomic studies of Ypresian mollusks at the Kopet-Dagh Basin, NE Iran Amir Salahi, Abbas Ghaderi, Ali Reza Ashouri, Alejandro Cristín, Saeedeh Senemari ABSTRACT Amir Salahi ABSTRACT RESUMEN Abbas Ghaderi [email protected] Marine invertebrate fossils have long been Los fósiles de invertebrados marinos se han considerado Ali Reza Ashouri herramientas importantes para la recolecta de datos por Department of Geology, Faculty of Scienc- considered important tools for age dating and stratigraphic interpretation of the Paleogene edades y la interpretación estratigráfica de los depósitos es, Ferdowsi University of Mashhad, Azadi de paleógenos de Asia Central, sin embargo, aún no se Square, 9177948974, Mashhad, Iran. deposits of Central Asia, however infor- mation has not yet been provided from the ha proporcionado información de la cuenca de Kopet- Dagh (NE Irán). En esta investigación, se discuten Kopet-Dagh Basin (NE Iran). In this research, Alejandro Cristín los horizontes fosilíferos de la Formación Chehelkaman fossiliferous horizons of the Chehelkaman Posgrado en Ciencias de la Tierra, Instituto en las secciones Sheikh y Ghaleh-Zou (que nunca Formation at the Sheikh and Ghaleh-Zou de Geología, Universidad Nacional Autóno- antes se habían reconocido), ambos en el área Sheikh sections (which have never been recognized ma de México, Coyoacán, 04510, CDMX, Syncline. Estos lechos sedimentarios se superponen previously), both in the Sheikh Syncline area, Mexico. a la Formación de Pesteligh siliciclástica terrestre y are discussed. These sedimentary beds overlay son la primera evidencia de inundación marina de la the terrestrial siliciclastic Pesteligh Formation Saeedeh Senemari transgresión del Paleógeno en el centro de Kopet-Dagh. Faculty of Technical & Engineering, and are the first evidence of marine flooding Los estudios paleontológicos sistemáticos de fósiles de Imam Khomeini International University, of the Paleogene transgression in the cen- moluscos en esta sucesión condujeron a la identifica- 3414896818 Qazvin, Iran. tral Kopet-Dagh. Systematic paleontological ción de: diez géneros, doce especies, dos subespecies de studies of molluscan fossils in this succession bivalvos, cinco géneros y cinco especies de gasterópodos. led to the identification of ten genera, twelve El conjunto pertenece a cuatro horizontes fosilíferos species and two subspecies of bivalves and five diferentes: (1) Conjunto Dominado por Turritellidae genera and five species of gastropods. The (TDA), (2) Pycnodonte - Turkostrea horizonte, (3) assemblage belongs to four different fossilif- Cordiopsis - Cardium horizonte, (4) Camas de concha erous horizons: (1) Turritellidae Dominated Globularia en la sección Sheikh y solo horizonte TDA Assemblage (TDA), (2) Pycnodonte – Turkostrea en la sección de Ghaleh-Zou. La edad de toda la horizon, (3) Cordiopsis - Cardium horizon and (4) sucesión es Ypresian tardío (Cuisian medio temprano). Globularia shell beds in the Sheikh section and Ésta edad está basada en Cordiopsis subathooensis - only TDA horizon in the Ghaleh-Zou section. Turritella subathooensis co-ocurrencia de la zona con The age of the whole succession, based on las zonas de nannofósiles NP12 y NP13. El TDA en Cordiopsis subathooensis – Turritella subathooensis ambas secciones confirma la abundancia de nutrientes Zone co-occurrence with nannofossil zones y su orientación bimodal demuestra los efectos de las NP12 and NP13, is Late Ypresian (early middle ondas oscilatorias en lugar de las paleocorrientes unidi- Cuisian). The TDA in both sections confirms reccionales. Las altas tasas de bioerosión, incrustación, the abundance of nutrients and their bimodal fragmentación, desarticulación y corrosión de las con- orientation demonstrates effects of oscillatory chas en Pycnodonte – Turkostrea horizonte revela altos waves rather than unidirectional paleo-cur- volúmenes de nutrientes y condiciones ricas en energía. rents. High rates of bioerosion, encrustation, Este intervalo, cubierto por la Cordiopsis - Cardium fragmentation, disarticulation and corrosion of horizonte en una disposición de pavimento, representa the shells in the Pycnodonte – Turkostrea horizon las condiciones estables después de una tormenta. Los reveals high volumes of nutrients and ener- lechos de conchas de Globularia intercalados con lechos gy-rich conditions. This interval, overlain by de marga, indican estabilidad y una tendencia cada vez the Cordiopsis – Cardium horizon in a pavement más profunda del medio ambiente terminando en lutitas arrangement, represents the stable conditions y margas más profundas de la Formación Khangiran. after a storm. The Globularia shell beds inter- BOL. SOC. GEOL. MEX. 2019 bedded with marly beds indicate stability and a Palabras clave: Tafonomía, VOL. 71 NO. 3 deepening trend of the environment, terminat- paleo-ambiente, Eoceno tem- ing to deeper marine shales and marls of the P. 773 ‒ 804 prano, cuenca de Kopet-Dagh, http://dx.doi.org/10.18268/BSGM2019v71n3a9 Khangiran Formation. Formación Chehelkaman. Keywords: Taphonomy, paleoenviron- Manuscript received: September 9, 2018. Corrected manuscript received: December 20, 2018. ment, Early Eocene, Kopet-Dagh Basin, Manuscript accepted: January 22, 2019. Chehelkaman Formation. Systematic paleontology and taphonomic studies of Ypresian mollusks at the Kopet-Dagh Basin, NE Iran 774 / Boletín de la Sociedad Geológica Mexicana / 2019 1. Introduction interpretation of the molluscan fossils of the Chehelkaman Formation in the Sheikh Syncline The Kopet-Dagh Mountains of north-eastern area (SSA), which is located at the northeast of Iran had long been recognized as a petroliferous Bojnourd City in the central Kopet-Dagh (Figure INTRODUCTION / GEOLOGICAL SETTING basin (Afshar-Harb, 1969). These Mountains 1). extend from the eastern margin of the Caspian Sea to Afghanistan, limited by the Ashgabat fault at the northern border and the Alborz Range 2. Geological setting and Central Iran from the southern part (Afshar- Harb, 1979; Buryakovsky et al., 2001). The basin During the Early Paleocene, the Laramide orogeny was formed as a result of the southeastern exten- caused the retreat of the sea, followed by continental sion of the South Caspian Basin by Neotethyan deposits of the Pesteligh Formation above the com- back-arc rifting, followed by the closure of the pletely marine Kalat Formation (Afshar-Harb, Palaeotethys in the Middle Triassic by the Early 1994; Robert et al., 2014). The red beds of the Cimmerian Orogeny (Robert et al., 2014). In the Pesteligh Formation in the type area of the east- basin, continuous sedimentation took place from ern Kopet-Dagh gradually change to alternating the Jurassic to the Neogene (Berberian and King, siliciclastic and carbonate beds of the Chehelka- 1981; Afshar-Harb, 1994; Garzanti and Gaetani, man Formation, which indicates the first phase 2002; Wilmsen et al., 2009; Robert et al., 2014). of the Paleogene sea transgression. Toward the The Paleogene rocks of this sedimentary basin upper part, gradual change in the lithology from are Early to early Middle Paleocene Pesteligh For- the limestone into silty marl and marl are charac- mation (Robert et al., 2014), the Middle Paleocene teristic for the Khangiran Formation. - Early Eocene Chehelkaman Formation (Rivandi Along the central part of the basin, particularly in et al., 2012), and the Eocene - Early Oligocene the SSA, it is difficult to follow the typical succes- Khangiran Formation (Hadavi and Senemari, sion of the Paleogene and Neogene rock units lat- 2002). These successions are overlain by unnamed erally because of its lateral facies changes than the continental Neogene red beds and Quaternary type locality area. The shallowing trend toward alluvial deposits (Saadat-Mehri et al., 2012). the central Kopet-Dagh Basin and replacement The Chehelkaman Formation is a fossil rich rock of the carbonate sequence by siliciclastic-evapo- unit with nannoplankton, foraminifers, dinofla- ritic succession is the most important feature of gellates, ostracods, fish remains and a molluscan the depositional system. These facies changes assemblage (Hadavi and Senemari, 2002; Salahi, cause some difficulties for stratigraphic interpreta- 2011; Moshirfar et al., 2013; Rivandi et al., 2013). tions; therefore the Chehelkaman Formation has The formation is useful and informative for never been depicted in the published reports of stratigraphic correlation within the basin and the area (e.g., Afshar-Harb, 1979, 1994). It was also also with the Central Asia region. Nonetheless, not mentioned in the geological maps of the area, the macrofossil content of this formation
Load more

Recommended publications
  • Genetic Relationship of Asiatic Hard Clam Populations Collected in Northern Coastal Provinces in Vietnam Based on Mtdna Sequence Analysis
    Journal of Aquaculture & Marine Biology Genetic relationship of asiatic hard clam populations collected in northern coastal provinces in Vietnam based on mtDNA sequence analysis Abstract Research Article The genetic relationship of some Asiatic hard clam (Meretrix meretrix) based on mtDNA Volume 7 Issue 1 - 2018 COI sequence analysis was investigated for populations collected in Thai Binh, Nam Dinh, Nghe An provinces in Vietnam. In addition, this research also targets at species Vu Thi Trang,1 Le Thi Quynh Chi,3 Chu Chi identification based on COI sequences. In total of 59 sequences analyzed, 19 sequences Thiet,2 Nguyen Huu Duc,3 Tran Thi Thuy Ha1 belonged to Meretrix meretrix species with Gen Bank accession number DQ399399.1. 17 1Centre of Aquaculture Biotechnology, Research Institute for sequences of M. meretrix were used for genetic relationship analysis among 3 populations. Aquaculture No.1, Vietnam In which, 6 polymorphic sites, 3 parsimony informative sites and 4 haplotypes observed 2Aquaculture Research Sub-Institute for North Central for the COI gene. Moderately genetic population diversity was observed, overall haplotype (ARSINC), Research Institute for Aquaculture No.1, Vietnam and nucleotide diversity were 0.476±0.233 and 0.00151±0.00069, respectively. Generally, 3Faculty of Biotechnology, Vietnam National University of Agriculture, Vietnam genetic differentiation (FST) (FST < 0.15) was moderate. The genetic distance was rather low, which ranged from 0.001 (Thai Binh–NgheAn, Thai Binh–Nam Dinh populations) to 0.002 (Nam Dinh – Nghe An populations). The result of haplotype network constructing Correspondence: Vu Thi Trang, Centre of Aquaculture indicated that populations shared common haplotype and there was no specific isolation Biotechnology, Research Institute for Aquaculture No.1, Vietnam, of the haplotypes of the populations.
    [Show full text]
  • Mollusca: Veneridae) in the Western Pacific Ocean1
    Genetic Relationships among Species of Meretrix (Mollusca: Veneridae) in the Western Pacific Ocean1 Ayako Yashiki Yamakawa,2,3,6 Masashi Yamaguchi,4,5 and Hideyuki Imai4 Abstract: We compared allozymes at 12 loci in 12 populations of six species of Meretrix: M. lusoria ( Japan, Korea, and Taiwan), M. petechialis (China and Ko- rea), M. ovum (Thailand and Mozambique), M. lyrata (China), M. lamarckii ( Ja- pan), and Meretrix sp. A (Okinawa, Japan). Our allozyme results were generally consistent with the major groupings currently recognized within the genus based on morphological characters. However, we found two cryptic or un- described species: Meretrix sp. A from Okinawa and M. cf. lusoria from Taiwan. The shell characters of Meretrix sp. A were similar to those of M. lamarckii, but the species was genetically distinct (Nei’s genetic distance D > 0.845) from all other species examined. The Taiwanese Meretrix population was morphologi- cally indistinguishable from Japanese M. lusoria, although the genetic distance between the Taiwanese and Japanese populations showed a high degree of ge- netic differentiation (D > 0.386). Meretrix lusoria seedlings were introduced into Taiwan from Japan in the 1920s, and Japanese M. lusoria was previously thought to be established as a cultured stock. However, our results suggest that the Taiwanese population may represent a sibling or cryptic species of M. lusoria. Asianhardclams, genus Meretrix (Vener- (Yoosukh and Matsukuma 2001). These idae), are commercially important bivalves clams inhabit the tidal flats, estuaries, and in East and Southeast Asia and East Africa sandy beaches of the Indian Ocean, including East Africa and Southeast Asia, and the west- ern Pacific along the Chinese coast, Korean 1 Financial support was provided from the 21st Peninsula, and Japanese Archipelago.
    [Show full text]
  • Meretrix Lyrata, Reared Downstream of a Developing Megacity, the Saigon-Dongnai River Estuary, Vietnam Viet Tuan, Phuoc-Dan Nguyen, Emilie Strady
    Bioaccumulation of trace elements in the hard clam, Meretrix lyrata, reared downstream of a developing megacity, the Saigon-Dongnai River Estuary, Vietnam Viet Tuan, Phuoc-Dan Nguyen, Emilie Strady To cite this version: Viet Tuan, Phuoc-Dan Nguyen, Emilie Strady. Bioaccumulation of trace elements in the hard clam, Meretrix lyrata, reared downstream of a developing megacity, the Saigon-Dongnai River Estuary, Vietnam. Environmental Monitoring and Assessment, Springer Verlag (Germany), 2020, 192 (9), pp.566. 10.1007/s10661-020-08502-z. hal-02925838 HAL Id: hal-02925838 https://hal.archives-ouvertes.fr/hal-02925838 Submitted on 1 Sep 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Bioaccumulation of trace elements in the hard clam, Meretrix lyrata, reared downstream of a developing megacity, the Saigon-Dongnai River Estuary, Vietnam Viet Tuan Tran &Phuoc-Dan Nguyen &Emilie Strady Abstract A large number of white hard clam farms are from the environment into the whole tissues of the hard in the estuary shoreline of Saigon-Dongnai Rivers, clam as well as its different organs. The samples were which flow through Ho Chi Minh City, a megacity, collected monthly in dry, transition, and wet seasons of and numerous industrial zones in the basin catchment the southern part of Vietnam from March to September area.
    [Show full text]
  • Rebuilding Biodiversity of Patagonian Marine Molluscs After the End-Cretaceous Mass Extinction
    Rebuilding Biodiversity of Patagonian Marine Molluscs after the End-Cretaceous Mass Extinction Martin Aberhan1*, Wolfgang Kiessling1,2 1 Museum fu¨r Naturkunde, Leibniz Institute for Evolution and Biodiversity Science, Berlin, Germany, 2 GeoZentrum Nordbayern, Pala¨oumwelt, Universita¨t Erlangen2 Nu¨rnberg, Erlangen, Germany Abstract We analysed field-collected quantitative data of benthic marine molluscs across the Cretaceous–Palaeogene boundary in Patagonia to identify patterns and processes of biodiversity reconstruction after the end-Cretaceous mass extinction. We contrast diversity dynamics from nearshore environments with those from offshore environments. In both settings, Early Palaeogene (Danian) assemblages are strongly dominated by surviving lineages, many of which changed their relative abundance from being rare before the extinction event to becoming the new dominant forms. Only a few of the species in the Danian assemblages were newly evolved. In offshore environments, however, two newly evolved Danian bivalve species attained ecological dominance by replacing two ecologically equivalent species that disappeared at the end of the Cretaceous. In both settings, the total number of Danian genera at a locality remained below the total number of late Cretaceous (Maastrichtian) genera at that locality. We suggest that biotic interactions, in particular incumbency effects, suppressed post-extinction diversity and prevented the compensation of diversity loss by originating and invading taxa. Contrary to the total number of genera at localities, diversity at the level of individual fossiliferous horizons before and after the boundary is indistinguishable in offshore environments. This indicates an evolutionary rapid rebound to pre-extinction values within less than ca 0.5 million years. In nearshore environments, by contrast, diversity of fossiliferous horizons was reduced in the Danian, and this lowered diversity lasted for the entire studied post-extinction interval.
    [Show full text]
  • Geology of the Tarim Basin with Special Emphasis on Petroleum Deposits, Xinjiang Uygur Zizhiqu, Northwest China
    Geology of the Tarim Basin with special emphasis on petroleum deposits, Xinjiang Uygur Zizhiqu, Northwest China By K. Y. Lee U.S. Geological Survey Reston, Virginia Open-File Report 85-616 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards and stratigraphic nomenclature. 1985 CONTENTS Page Abstract 1 Introduction 2 Regional setting 6 Purpose, scope, and method of report 6 S t rat igraphy 6 Jr r e""D inian Q Sinian 8 Paleozoic 10 Lower Paleozoic 11 Upper Paleozoic 12 Mesozoic 15 Tr ias s i c 15 Jurassi c 16 Cretaceous 17 Cenozoic 18 Tertiary 18 Quat e rnar y 2 0 Structure 21 Kuqa Foredeep 21 Northern Tarim Uplift 21 Eastern Tarim Depression 24 Central Uplift 24 Southwestern Depression 26 Kalpin Uplift 26 Southeastern Faulted Blocks 27 Evolution of the basin 27 Petroleum and coal deposits 36 Petroleum 36 Source rocks 36 Reservoir rocks 44 Cap rocks 45 Types of trap 47 Potential and description of known oil and gas fields 47 Occurrence 50 Potential 50 Summary and conclusions 52 References cited 54 ILLUSTRATIONS Page Figure 1. Index map of China 3 2. Geologic map of the Tarim (Talimu) basin, Xinjiang, northwest China 4 3. Airborne magnetic anomaly contours in Ta 9 4. Principal structural units 22 5. Sketch isopachs of the earth's crust 23 6. Depth to the magnetic basement rocks 25 7. Isopachs of the Paleozoic and Sinian strata 29 8. Isopachs of the Cenozoic and Mesozoic strata 30 9. Isopachs of the Jurassic strata 32 10.
    [Show full text]
  • DNA Barcoding Reveal Patterns of Species Diversity Among
    www.nature.com/scientificreports OPEN DNA barcoding reveal patterns of species diversity among northwestern Pacific molluscs Received: 04 April 2016 Shao’e Sun, Qi Li, Lingfeng Kong, Hong Yu, Xiaodong Zheng, Ruihai Yu, Lina Dai, Yan Sun, Accepted: 25 August 2016 Jun Chen, Jun Liu, Lehai Ni, Yanwei Feng, Zhenzhen Yu, Shanmei Zou & Jiping Lin Published: 19 September 2016 This study represents the first comprehensive molecular assessment of northwestern Pacific molluscs. In total, 2801 DNA barcodes belonging to 569 species from China, Japan and Korea were analyzed. An overlap between intra- and interspecific genetic distances was present in 71 species. We tested the efficacy of this library by simulating a sequence-based specimen identification scenario using Best Match (BM), Best Close Match (BCM) and All Species Barcode (ASB) criteria with three threshold values. BM approach returned 89.15% true identifications (95.27% when excluding singletons). The highest success rate of congruent identifications was obtained with BCM at 0.053 threshold. The analysis of our barcode library together with public data resulted in 582 Barcode Index Numbers (BINs), 72.2% of which was found to be concordantly with morphology-based identifications. The discrepancies were divided in two groups: sequences from different species clustered in a single BIN and conspecific sequences divided in one more BINs. In Neighbour-Joining phenogram, 2,320 (83.0%) queries fromed 355 (62.4%) species-specific barcode clusters allowing their successful identification. 33 species showed paraphyletic and haplotype sharing. 62 cases are represented by deeply diverged lineages. This study suggest an increased species diversity in this region, highlighting taxonomic revision and conservation strategy for the cryptic complexes.
    [Show full text]
  • Foraminíferos Y Bioestratigrafía Del Cretácico Superior Y Terciario Inferior Del Sur De Argentina
    Tesis de Posgrado Foraminíferos y bioestratigrafía del cretácico superior y terciario inferior del sur de Argentina Caramés, Andrea Alejandra 1993 Tesis presentada para obtener el grado de Doctor en Ciencias Geológicas de la Universidad de Buenos Aires Este documento forma parte de la colección de tesis doctorales y de maestría de la Biblioteca Central Dr. Luis Federico Leloir, disponible en digital.bl.fcen.uba.ar. Su utilización debe ser acompañada por la cita bibliográfica con reconocimiento de la fuente. This document is part of the doctoral theses collection of the Central Library Dr. Luis Federico Leloir, available in digital.bl.fcen.uba.ar. It should be used accompanied by the corresponding citation acknowledging the source. Cita tipo APA: Caramés, Andrea Alejandra. (1993). Foraminíferos y bioestratigrafía del cretácico superior y terciario inferior del sur de Argentina. Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. http://digital.bl.fcen.uba.ar/Download/Tesis/Tesis_2582_Carames.pdf Cita tipo Chicago: Caramés, Andrea Alejandra. "Foraminíferos y bioestratigrafía del cretácico superior y terciario inferior del sur de Argentina". Tesis de Doctor. Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. 1993. http://digital.bl.fcen.uba.ar/Download/Tesis/Tesis_2582_Carames.pdf Dirección: Biblioteca Central Dr. Luis F. Leloir, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires. Contacto: [email protected] Intendente Güiraldes 2160 - C1428EGA - Tel. (++54 +11) 4789-9293 UNIVERSIDAD DE BUENOS AIRES FACULTAD DE CIENCIAS EXACTAS Y NATURALES Tema de Tesis FORAMINIFEROS Y BIOESTRATIGRAFIA DEL CRETACICO SUPERIOR Y TERCIARIO INFERIOR DEL SUR DE ARGENTINA TOMO I Autor Andrea A.
    [Show full text]
  • Cnn,'Rr'ffivne
    Vne cnn,'rr'ffi 1N1 .' DEPARTMENT OF CONSERVATION AND ECONOMIC DEVELOPMENT DIVISION OF MINERAL RESOURCES Box 3667, University Station Charlottesville, Virginia Jarnes L. Calver, Cornrnissioner of Mineral Resources and State Geoloeist Inforrnation Circular 6 GUiDEBOOK to THE COASTAL PLAIN OF VIRGINIA NORTH OF THE JAMES RIVER Charlottesville, Virginia 19 62 ERRATA trnforrnation Circular 6 Page vi', ?t , o. Fredricksburg,. " should read, ". Fredericksburg,. " and., " Potornic should read, " . Potornac. " . Page 4, in caption: ... Forrnati.on, " " sholrJ.d read" ". forrnations",, Page 15, Clark and MiLler (l9llj: should read. Tur::itel1a" Turitella... " " " " Page I8; Turn Left on U, S" Highway 360 at Wansaw. " " should read" ", Turn right on U. S. Highway 360 at Warsaw, " " Page t'one l9: Turn right onrrone way" dirt road." " " shouLd read". " Turn right or., park road to battl.efield" ,way'r " " Page 21: Proceed onrrone way" dirt road and turn right on State Highway 238". " should read. ". Proceed on "one way" park road and turn right on State Highway 23B" . Page ZZ; .. ' Straight ahead on State Road l00l at intersection of State Highway 238 and State Road 1001 (about one block) ".. should read". " Stay on State Highway 238 past the entrance of Vi.sitor Center of Yorktown Battlefield to the inter- section with State Road 1001" " . Turn right on U. S" Highway L7 and cz'osc George P" Colernan Mernori.al Bridge" ". should read... Strai.ght ahead orr State Road 1001 for approxirnately Z blocks and turn right on U. S" Flighway l? to cross George P. Colernan Memorial Bridge. , . Page 23: (mileage) "..7.7 ?1.6 (accurnu}ative rnitreage)" " " should read ...9"4 73,3, .
    [Show full text]
  • Molecular Phylogeny of Veneridae (Mollusca:Bivalvia) Based on Nuclear Ri- Bosomal Internal Transcribed Spacer Region
    International Journal of Molecular Biology ISSN: 0976-0482 & E-ISSN: 0976-0490, Volume 5, Issue 1, 2014, pp.-097-101. Available online at http://www.bioinfopublication.org/jouarchive.php?opt=&jouid=BPJ0000235 MOLECULAR PHYLOGENY OF VENERIDAE (MOLLUSCA:BIVALVIA) BASED ON NUCLEAR RI- BOSOMAL INTERNAL TRANSCRIBED SPACER REGION AMPILI M.1* AND SREEDHAR S.K.2 1Department of Zoology, N.S.S. Hindu College, Changanassery- 686 102, Kerala, India. 2Department of Zoology, S.N. College, Cherthala- 688 530, Kerala, India. *Corresponding Author: Email- [email protected] Received: April 03, 2014; Accepted: April 24, 2014 Abstract- In the present study, molecular phylogeny of bivalve family Veneridae (Mollusca:Bivalvia) was analysed using internal transcribed spacer (ITS) region of 21 species belonging to different subfamilies of Veneridae. ITS of ribosomal DNA can be utilised for delineating evolu- tionary and genetic relationships between closely related taxa. ITS region of Paphia malabarica belonging to subfamily Tapetinae and Meretrix casta belonging to meretricinae was sequenced. Total genomic DNA was extracted from the adductor muscle using CTAB protocol and the internal transcribed spacer region of nuclear ribosomal DNA was PCR amplified and sequenced using ITS (ITS1 and ITS2) forward and re- verse primers. Total length of sequence was found to be 895 bp in Paphia malabarica and 785 bp in Meretrix casta. GC contents in the se- quences were found to be 58.99% and 64.68% respectively in Paphia malabarica and Meretrix casta. ITS1 region of Paphia malabarica con- sisted of 393 bp with GC content 58.12% and 309 bp with 63.75% GC content in Meretrix casta.
    [Show full text]
  • (Röding, 1798) (Mollusca: Bivalvia: Veneridae) from Indian Coastal Waters
    Rec. zool. Surv. India: Vol. 120(4)/509–511, 2021 ISSN (Online) : 2581-8686 DOI: 10.26515/rzsi/v120/i4/2020/131389 ISSN (Print) : 0375-1511 Short Communication Range extension and first record of Meretrix lusoria (Röding, 1798) (Mollusca: Bivalvia: Veneridae) from Indian coastal waters Rajendar Kumar Rupavath*, Rajkumar Rajan and Vanishree Jegadeesan Marine Biology Regional Centre, Zoological Survey of India, Chennai - 600028, Tamil Nadu, India Email: [email protected] Abstract Meretrix lusoria (Röding, 1798), one of the commercially important marine bivalves found in waters of west Taiwan, Meretrix southeast China, Thailand and Japan, is reported for the first time from the coastal waters of India (Andhra Pradesh coast, Bay of Bengal), thus extending its range from Central Indo-Pacific to Bay of Bengal. This report raises the tally of spp. so far known from India to four. Keywords: Bay of Bengal, First Record, Meretrix lusoria, Veneridae Introduction systematic classification were followed as per Hornell (1917), Huber (2010) and Rao (2017). The genus Meretrix is restricted to the Indian and Chinese seas, from Aden and the Gulf of Oman to Timorand the Results Philippines, and as far north as Japan (Jukes-Browney, with 13 species known so far (Huber, 2010). There Taxonomy ,(1913 are only three species known to occur so far in Indian waters, namely Meretrix attenuata Dunker, 1863, Meretrix Phylum MOLLUSCA casta (Gmelin, 1791), and Meretrix meretrix (Linnaeus, Class BIVALVIA Hornell, 1917). The specimen reported here, Subterclass EUHETERODONTA) (1758 collected off Andhra Pradesh coast (East coast of India, Order VENERIDA Bay of Bengal), is identified asMeretrix lusoria (Röding, 1798), which is a new addition to this genus from Indian Superfamily VENEROIDEA waters, since Hornell (1917).
    [Show full text]
  • Heavy Metals Load in Clam Meretrix Meretrix from Ratnagiri Coast
    J. Exp. Zool. India Vol. 14, No. 2, pp. 507-511, 2011 ISSN 0972-0030 HEAVY METALS LOAD IN CLAM MERETRIX MERETRIX FROM RATNAGIRI COAST G. D. Suryawanshi, A. M. Shaikh* and V. R. Ragade** Department of Zoology, Yogeshwari Mahavidyalaya, Ambajogai, Beed-431517, India. *Department of Zoology, I. C. S. College, Khed, Dist. Ratnagiri-415909, India. ** Department of Zoology, V. G. Vage College, Mulund (E), Mumbai - 400 081, India (Accepted 27 May 2011) ABSTRACT – Clams Meretrix meretrix of medium (44.66 mm shell length) sizes from Kalbadevi creek at Ratnagiri were collected in monsoon, winter and summer seasons. The soft body parts on dry weight basis showed more amounts of zinc (µg/gm) during monsoon from mantle (146.39) followed by gill (122.03), hepatopancreas (116.11), gonad (112.66), siphon (111.64) and adductor muscle (108.51). The lead content was more in adductor muscle (16.32) followed by siphon (14.80), gill (14.04), hepatopancreas (13.66), gonad (13.28), and mantle (9.49). The cadmium was more in gill (0.57) and remaining body parts the metal was not detected in monsoon. The copper metal showed more in hepatopancreas (1.54) followed by gill (1.51), gonad (1.45), adductor muscle (1.37), siphon (1.32) and mantle (1.08). The zinc metal during winter was more in gill (121.71) followed by mantle (110.10), gonad (107.39), hepatopancreas (104.33), siphon (99.91) and adductor muscle (99.82). The lead content was more in gill (24.28) than siphon (19.59), adductor muscle (18.35), mantle (18.21), hepatopancreas (17.08) and gonad (11.21).
    [Show full text]
  • Karyotypes of 2 Species, Meretrix Lusoria and M. Petechialis, of Veneridae in Korea
    © 2011 The Japan Mendel Society Cytologia 76(2): 119–123, 2011 Karyotypes of 2 Species, Meretrix lusoria and M. petechialis, of Veneridae in Korea Gab-Man Park1*, Yong-Min Kim2 and Ee-Yung Chung3 1 Department of Environmental Medical Biology, Kwandong University College of Medicine, Gangneung 210–701, Korea 2 Korea National Parks Service, Park Conservation Team, #129 Mapo-ro (Gongdeok-dong), Mapo-gu, Seoul 121–717, Korea 3 Korea Marine Environment & Ecosystem Research Institute, Dive Korea, Bucheon 420–857, Korea Received September 1, 2010; accepted February 23, 2011 Summary The karyotypes of Meretrix lusoria and M. petechialis in the family Veneridae in Korea were studied in order to analyse their genetic relationships. The 2 species showed a diploid chromosome number of 2nϭ38, with 5 metacentric, 10 submetacentric, 2 subtelocentric, and 2 telocentric chromosome pairs for Meretrix lusoria, and 5 metacentric, 9 submetacentric, 3 subtelocentric, and 2 telocentric for M. petechialis. The karyotypes of these 2 species are clearly different in the same genus. Key words Karyotype, Veneridae, Meretrix lusoria, Meretrix petechialis, Korea. Meretrix species (Bivalvia: Veneridae), an important economic species, is naturally distributed along the costal waters of China, Japan and Korea. To date, only 3 species of Meretrix, M. lisoria, M. petechialis and M. lamarkii, have been reported in Korea (Kwon et al. 1993). The genus Meretrix has a wide distribution on the south and west coasts of Korea and also reveals closely similar species from taxonomic point of view. In particular, M. lusoria and M. petechialis have various morphological patterns within the same species. Additionally, high variations in shell morphology at the same place in the intertidal and subtidal zones on the west coast of Korea have been found.
    [Show full text]