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JVP 26(3) September 2006—ABSTRACTS
Neoceti Symposium, Saturday 8:45 acid-prepared osteolepiforms Medoevia and Gogonasus has offered strong support for BODY SIZE AND CRYPTIC TROPHIC SEPARATION OF GENERALIZED Jarvik’s interpretation, but Eusthenopteron itself has not been reexamined in detail. PIERCE-FEEDING CETACEANS: THE ROLE OF FEEDING DIVERSITY DUR- Uncertainty has persisted about the relationship between the large endoskeletal “fenestra ING THE RISE OF THE NEOCETI endochoanalis” and the apparently much smaller choana, and about the occlusion of upper ADAM, Peter, Univ. of California, Los Angeles, Los Angeles, CA; JETT, Kristin, Univ. of and lower jaw fangs relative to the choana. California, Davis, Davis, CA; OLSON, Joshua, Univ. of California, Los Angeles, Los A CT scan investigation of a large skull of Eusthenopteron, carried out in collaboration Angeles, CA with University of Texas and Parc de Miguasha, offers an opportunity to image and digital- Marine mammals with homodont dentition and relatively little specialization of the feeding ly “dissect” a complete three-dimensional snout region. We find that a choana is indeed apparatus are often categorized as generalist eaters of squid and fish. However, analyses of present, somewhat narrower but otherwise similar to that described by Jarvik. It does not many modern ecosystems reveal the importance of body size in determining trophic parti- receive the anterior coronoid fang, which bites mesial to the edge of the dermopalatine and tioning and diversity among predators. We established relationships between body sizes of is received by a pit in that bone. The fenestra endochoanalis is partly floored by the vomer extant cetaceans and their prey in order to infer prey size and potential trophic separation of and the dermopalatine, restricting the choana to the lateral part of the fenestra. -
Annotated Checklist of Fossil Fishes from the Smoky Hill Chalk of the Niobrara Chalk (Upper Cretaceous) in Kansas
Lucas, S. G. and Sullivan, R.M., eds., 2006, Late Cretaceous vertebrates from the Western Interior. New Mexico Museum of Natural History and Science Bulletin 35. 193 ANNOTATED CHECKLIST OF FOSSIL FISHES FROM THE SMOKY HILL CHALK OF THE NIOBRARA CHALK (UPPER CRETACEOUS) IN KANSAS KENSHU SHIMADA1 AND CHRISTOPHER FIELITZ2 1Environmental Science Program and Department of Biological Sciences, DePaul University,2325 North Clifton Avenue, Chicago, Illinois 60614; and Sternberg Museum of Natural History, Fort Hays State University, 3000 Sternberg Drive, Hays, Kansas 67601;2Department of Biology, Emory & Henry College, P.O. Box 947, Emory, Virginia 24327 Abstract—The Smoky Hill Chalk Member of the Niobrara Chalk is an Upper Cretaceous marine deposit found in Kansas and adjacent states in North America. The rock, which was formed under the Western Interior Sea, has a long history of yielding spectacular fossil marine vertebrates, including fishes. Here, we present an annotated taxo- nomic list of fossil fishes (= non-tetrapod vertebrates) described from the Smoky Hill Chalk based on published records. Our study shows that there are a total of 643 referable paleoichthyological specimens from the Smoky Hill Chalk documented in literature of which 133 belong to chondrichthyans and 510 to osteichthyans. These 643 specimens support the occurrence of a minimum of 70 species, comprising at least 16 chondrichthyans and 54 osteichthyans. Of these 70 species, 44 are represented by type specimens from the Smoky Hill Chalk. However, it must be noted that the fossil record of Niobrara fishes shows evidence of preservation, collecting, and research biases, and that the paleofauna is a time-averaged assemblage over five million years of chalk deposition. -
Redalyc.Taxonomic Review and Phylogenetic Analysis Of
Anais da Academia Brasileira de Ciências ISSN: 0001-3765 [email protected] Academia Brasileira de Ciências Brasil SILVA, HILDA M.A.; GALLO, VALÉRIA Taxonomic review and phylogenetic analysis of Enchodontoidei (Teleostei: Aulopiformes) Anais da Academia Brasileira de Ciências, vol. 83, núm. 2, enero-junio, 2011, pp. 483-511 Academia Brasileira de Ciências Rio de Janeiro, Brasil Available in: http://www.redalyc.org/articulo.oa?id=32719267009 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative “main” — 2011/5/11 — 19:20 — page 483 — #1 Anais da Academia Brasileira de Ciências (2011) 83(2): 483-511 (Annals of the Brazilian Academy of Sciences) Printed version ISSN 0001-3765 / Online version ISSN 1678-2690 www.scielo.br/aabc Taxonomic review and phylogenetic analysis of Enchodontoidei (Teleostei: Aulopiformes) HILDA M.A. SILVA and VALÉRIA GALLO Laboratório de Sistemática e Biogeografia, Departamento de Zoologia, Instituto de Biologia, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, Maracanã, 20550-013 Rio de Janeiro, RJ, Brasil Manuscript received on September 24, 2010; accepted for publication on December 22, 2010 ABSTRACT Enchodontoidei are extinct marine teleost fishes with a long temporal range and a wide geographic distribution. As there has been no comprehensive phylogenetic study of this taxon, we performed a parsimony analysis using a data matrix with 87 characters, 31 terminal taxa for ingroup, and three taxa for outgroup. The analysis produced 93 equally parsimonious trees (L = 437 steps; CI = 0.24; RI = 0.49). -
Melbourne Program Guide
MELBOURNE PROGRAM GUIDE Sunday 24th March 2013 06:00 am Animal Extractors (Rpt) PG Backyard Python For wildlife professionals, using humane techniques to capture and relocate animals who've strayed into populated areas is all in a day's work, although there's nothing routine about their jobs. 07:00 am Animal Extractors (Rpt) PG Three Little Pigs For wildlife professionals, using humane techniques to capture and relocate animals who've strayed into populated areas is all in a day's work, although there's nothing routine about their jobs. 08:00 am Omnisport (Rpt) Hot off the satellite, Omnisport brings you a comprehensive roundup of sports news and highlights from the past 24 hours. Covering all the major sports, no matter where in the world the event is held. 08:30 am Rugby Classic Matches (Rpt) Autumn International 2011: Wales V Australia 10:30 am Basketball: NBL Championship Round 24: Sydney Kings V Townsville Crocodiles 2012/13 (Rpt) The 2012–13 National Basketball League is the thirty-fifth season of competition since its establishment in 1979. A total of 8 teams will contest the league. 12:30 pm Omnisport (Rpt) Hot off the satellite, Omnisport brings you a comprehensive roundup of sports news and highlights from the past 24 hours. Covering all the major sports, no matter where in the world the event is held. 01:00 pm Meteorite Men (Rpt) G Swedish Meteor Balls The Muonionalusta meteorites have endured thousands of years worth of glaciations and melting periods. Thawing ice sheets have migrated the meteorites miles from their original impact site. -
A Synopsis of the Vertebrate Fossils of the English Chalk
A. S. WOODWARD ON FOSSILS OF THE ENGLI SH CHALK. 273 Portion of tooth of Mosasallrus, from the Upper Chalk of Norwich, exhibited hy Mr. B. B. W OODWARD, F.G.S. R ecent Conglomeratic Boulder (pebbles in clay), from the Isle of Wight, exhibited by Mr. E . LITCIIFIELD. A SYNOPSIS 0 .. THE VERTEBRATE FOSSILS OF THE ENGLISH CIIALK. By A. SMITH WOODWARD, F .G.S., F .Z.S., of the British Museum tNatural History). I. INTRODUCTION. Since the publication of the revised edition of Dixon's ' Geology and Fossils of Sussex,' in 1878, no synoptical review of the ver tebrate fossils of the English Chalk appears to have been at tempted; and with the exception of the elaborate (though not critical) synopsis of genera in Mr. Etheridge's new edition of Phillips' 'Manual,' students of Cretaceous pal reontology can still find no other concise treatise on the subject. Much advance, how ever, has been made within the last ten years in our knowledge of later Mesozoic life; and I propose in the present communication to offer a brief epit ome of the facts in regard to the Vertebrata of the period, yielded by th e well-known uppermost division of the Meso zoic strata in Western Europe. Th e' Proceedings' of th e Asso ciation afford a most appropriate medium for the publication of such a review, so many of th e Members being interested in the treasures continually disinterred from th e numerous chalk pits of the South of England. And I have fortunately been able to compare with all that has been written th e unrivalled series of original specimens in the British Museum, and th e collection of Henry Willett, Esq., F .G.S., of Brighton, besides many othe r fossils in th e Museum of Practical Geology, Jermyn Street, the W oodwardian Museum, Cambridge, and the private cabinets of Mr. -
Teleostei: Aulopiformes)
“main” — 2011/5/11 — 19:20 — page 483 — #1 Anais da Academia Brasileira de Ciências (2011) 83(2): 483-511 (Annals of the Brazilian Academy of Sciences) Printed version ISSN 0001-3765 / Online version ISSN 1678-2690 www.scielo.br/aabc Taxonomic review and phylogenetic analysis of Enchodontoidei (Teleostei: Aulopiformes) HILDA M.A. SILVA and VALÉRIA GALLO Laboratório de Sistemática e Biogeografia, Departamento de Zoologia, Instituto de Biologia, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, Maracanã, 20550-013 Rio de Janeiro, RJ, Brasil Manuscript received on September 24, 2010; accepted for publication on December 22, 2010 ABSTRACT Enchodontoidei are extinct marine teleost fishes with a long temporal range and a wide geographic distribution. As there has been no comprehensive phylogenetic study of this taxon, we performed a parsimony analysis using a data matrix with 87 characters, 31 terminal taxa for ingroup, and three taxa for outgroup. The analysis produced 93 equally parsimonious trees (L = 437 steps; CI = 0.24; RI = 0.49). The topology of the majority rule consensus tree was: (Sardinioides + Hemisaurida + (Nardorex + (Atolvorator + (Protostomias + Yabrudichthys) + (Apateopholis + (Serrilepis + (Halec + Phylactocephalus) + (Cimolichthys + (Prionolepis + ((Eurypholis + Saurorhamphus) + (Enchodus + (Paleolycus + Parenchodus))))))) + ((Ichthyotringa + Apateodus) + (Rharbichthys + (Trachinocephalus + ((Apuliadercetis + Brazilodercetis) + (Benthesikyme + (Cyranichthys + Robertichthys) + (Dercetis + Ophidercetis)) + (Caudadercetis + (Pelargorhynchus + (Nardodercetis + (Rhynchodercetis + (Dercetoides + Hastichthys)))))). The group Enchodontoidei is not monophyletic. Dercetidae form a clade supported by the presence of very reduced neural spines and possess a new composition. Enchodontidae are monophyletic by the presence of middorsal scutes, and Rharbichthys was excluded. Halecidae possess a new composition, with the exclusion of Hemisaurida. This taxon and Nardorex are Aulopiformes incertae sedis. -
Generalized Conditions of Spherical Carbonate Concretion Formation
www.nature.com/scientificreports OPEN Generalized conditions of spherical carbonate concretion formation around decaying organic matter in Received: 2 November 2017 Accepted: 28 March 2018 early diagenesis Published: xx xx xxxx Hidekazu Yoshida1, Koshi Yamamoto2, Masayo Minami3, Nagayoshi Katsuta4, Sirono Sin-ichi2 & Richard Metcalfe5 Isolated spherical carbonate concretions observed in marine sediments are fascinating natural objet trouve because of their rounded shapes and distinct sharp boundaries. They occur in varied matrices and often contain well preserved fossils. The formation process of such concretions has been explained by difusion and rapid syn-depositional reactions with organic solutes and other pore water constituents. However, the rates, conditions and formation process of syngenetic spherical concretions are still not fully clear. Based on the examination of diferent kinds of spherical concretions from several locations in Japan, a difusion based growth diagram was applied to defne the generalized growth conditions of spherical concretions formed around decaying organic matter. All analytical data imply that the spherical concretions formed very rapidly, at least three to four orders of magnitude faster than previously estimated timescales. The values indicate that spherical concretions are preferentially grown within clay- to silt-grade marine sediments deposited in relatively deep (a few tens of metres) environments dominated by difusive solute transport, very early in diagenesis. Spherical, isolated carbonate concretions occur throughout the world in marine argillaceous sedimentary rocks of widely varying geological ages. Tese concretions are characteristically highly enriched in CaCO3 compared to the surrounding sedimentary rock matrices and are typically separated from these rock matrices by sharp bound- aries1–3. Tese sharp boundaries mean that the isolated carbonate concretions are readily identifable and both geologists and non-scientists alike have been motivated to consider how such concretions could have formed. -
Concretions, Nodules and Weathering Features of the Carmelo Formation
Concretions, nodules and weathering features of the Carmelo Formation The features that characterize a sedimentary rock can form at chemical origin and include nodules and concretions. diverse times and under very different conditions. Geologists Deformational features result from the bending, buckling, or divide these features into four classes. Depositional features breaking of sedimentary strata by external forces. Surficial form while the sediment is accumulating. They can tell a much (weathering) features develop in a rock at or near the about the ancient environment of deposition and include many surface where it is subject to groundwater percolation. These examples in the Carmelo Formation. Diagenetic features features can reflect both physical and chemical processes. a develop after the sediment has accumulated and can include number of examples exist in the rocks of Point Lobos. (See link the transition from sediment to rock. They typically have a to The Rocks of Point Lobos for further descriptions). Depositional Diagenetic Deformational Surficial Features that form as Features that form after Features that develop Features that form while the the sediment the sediment was anytime after deposition rock is exposed at or near accumulates deposited until it becomes and reflect the bending, the present-day land surface a rock swirling, or breaking of the stratification Examples: Examples: Examples: Examples: Bedding (layering, Nodules “Convolute lamination” Iron banding stratification) Concretions Slump structure Honeycomb Grain size Lithification (rock Tilting weathering Grain organization formation) Folds Color change (grading, pebble Faults orientation, imbrication) Ripple marks Ripple lamination Trace fossils Erosional scours Channels Features of a sedimentary rock sorted according to their origin. -
Project Dirt Disaster Relief Transporter (Responding to Earth’S Changing Surface)
Project DiRT Disaster Relief Transporter (responding to Earth’s Changing Surface) This material was supported by funding from Mission Support Test Services and is affiliated with UNLV College of Engineering’s Tech Trekker program. Table of Contents Table of Contents 2 Unit and Project Overview 3 Next Generation Science Standards 4 EARTH’S SYSTEMS MS-ESS2-3 4 EARTH’S SYSTEMS MS-ESS2-2 4 EARTH’S AND HUMAN ACTIVITY MS-ESS3-2 5 ENGINEERING DESIGN MS-ETS1- 1,3,4 6 Lesson One: Past Earth vs Present Earth 8 Lesson Two: Lithospheric Plates 177 Lesson Three: Rocky Subduction Zones 20 Lesson Four: Earth’s Changing Surface 266 Lesson Five: Earth’s Geological Features 30 Lesson Six: Natural Disasters 354 Lesson Seven: Natural Hazards and Technology 38 Lesson Eight: Seismic Raspberry Shake 444 Lesson Nine: Project DiRt (Disaster Relief Transporter) Engineering Design 51 2 Dynamic Earth and Project DiRT Unit and Project Overview The Earth appears to be moving at a steady state and very slowly. The constant rotation on its axis and the planet’s revolution around the sun seem to be non-existent, as we really don’t feel that motion, but evidence is clear with the change in the amount of daylight we experience. However, even if we look at the Earth as static, it is actually a dynamic and ever-changing planet. Agents of erosion such as wind, water, and ice shape the land. Volcanic eruptions and earthquakes alter the landscape in dramatic, and often violent, manners. On a much longer timescale, the movement of the Earth’s plates slowly reconfigures oceans and continents. -
Melbourne Program Guide
MELBOURNE PROGRAM GUIDE Sunday 17th March 2013 06:00 am NASCAR Sprint Cup Highlights (Rpt) Race 3: Kobalt Tools 400 @ Las Vegas -Highlights Non-stop motorsport action highlights from the Las Vegas Motor Speedway. The high octane NASCAR racing continues with the 3rd race of the 2013 Sprint Cup Series. 07:00 am Animal Extractors (Rpt) PG Race Against Time For wildlife professionals, using humane techniques to capture and relocate animals who've strayed into populated areas is all in a day's work, although there's nothing routine about their jobs. 08:00 am Animal Extractors (Rpt) PG Snake Attack For wildlife professionals, using humane techniques to capture and relocate animals who've strayed into populated areas is all in a day's work, although there's nothing routine about their jobs. 09:00 am Meteorite Men (Rpt) G Utah Fireball On Nov 18, 2009, a fireball streaked across the midnight sky over western Utah. The Meteorite Men track the strewn field down to Dugway Military Base. LIVE NATIONWIDE 10:00 am THE 2013 FIA FORMULA ONE CC 2013 Formula ONE Grand Prix Season Preview WORLD CHAMPIONSHIP™ SEASON PREVIEW LIVE NATIONWIDE 12:00 pm THE 2013 FORMULA ONE™ ROLEX CC The 2013 Formula ONE Rolex Australian Grand Prix Afternoon AUSTRALIAN GRAND PRIX™ AFTERNOON LIVE NATIONWIDE 04:00 pm THE 2013 FORMULA ONE™ ROLEX CC The 2013 Formula ONE Rolex Australian Grand Prix Preview AUSTRALIAN GRAND PRIX™ PREVIEW LIVE NATIONWIDE 05:00 pm THE 2013 FORMULA 1® ROLEX CC The 2013 Formula 1 Rolex Australian Grand Prix AUSTRALIAN GRAND PRIX™ LIVE NATIONWIDE 06:45 pm THE 2013 FORMULA 1® ROLEX CC The 2013 Formula 1 Rolex Australian Grand Prix Extended AUSTRALIAN GRAND PRIX™ Coverage ALL NEW EPISODES 07:30 pm World's Toughest Trucker PG Some Coarse Language The truckers arrive in the country of Mongolia, where they find it hard to deal with the remote and hostile environment and battle with their old Russian trucks. -
Meteorite Fall
Meteorite Times Magazine Contents by Editor Featured Monthly Articles Accretion Desk by Martin Horejsi Jim’s Fragments by Jim Tobin Meteorite Market Trends by Michael Blood Bob’s Findings by Robert Verish IMCA Insights by The IMCA Team Micro Visions by John Kashuba Norm’s Tektite Teasers by Norm Lehrman Meteorite Calendar by Anne Black Meteorite of the Month by Editor Tektite of the Month by Editor Terms Of Use Materials contained in and linked to from this website do not necessarily reflect the views or opinions of The Meteorite Exchange, Inc., nor those of any person connected therewith. In no event shall The Meteorite Exchange, Inc. be responsible for, nor liable for, exposure to any such material in any form by any person or persons, whether written, graphic, audio or otherwise, presented on this or by any other website, web page or other cyber location linked to from this website. The Meteorite Exchange, Inc. does not endorse, edit nor hold any copyright interest in any material found on any website, web page or other cyber location linked to from this website. The Meteorite Exchange, Inc. shall not be held liable for any misinformation by any author, dealer and or seller. In no event will The Meteorite Exchange, Inc. be liable for any damages, including any loss of profits, lost savings, or any other commercial damage, including but not limited to special, consequential, or other damages arising out of this service. © Copyright 2002–2012 The Meteorite Exchange, Inc. All rights reserved. No reproduction of copyrighted material is allowed by any means without prior written permission of the copyright owner. -
Chondrules and Their Origins. Subject Index
359 1983chto.conf..359. SUBJECT INDEX Ablation spherules 21 formation 46, 50 as chondrule analogs 11, 22 internal isochrons 251, 256 composition 14, 15, 17, 18 iodine-xenon dating 256 formation 11-14, 19 matrix ages 257 grains 13, 14 metamorphic structure 47 iron 14 origin 50 magnetic properties 15 photomicrographs 47 matrix 13 potassium-argon dating 251 melting 19, 21, 22 texture 44 metals 19 ultrathin sections 47 mineralogy 19 Allende chondrules photomicrographs 13 ages 247-251,253,255-257 porphyritic 21 alteration 159 siderophiles 15-19 cavities 155-157, 159 texture 19 classification 207 thermal effects 12-14 composition 42, 93, 156, 157 volatiles 13, 14 EPMA 93 Aerodynamic spherules extraction temperature 254 as chondrule analogs 10, 12 formation 160 composition 12 iodine 254, 256, 257 formation 12 iodine-xenon 258 thermal effects 12 isochrons 254 Age dating techniques 257 isotopes 37, 39-42, 270 iodine-xenon 246, 247 mineralogy 93, 149-152, 154, 155, 158, 160 isochrons 257 mixing line 41 metamorphic processes 257 opaque inclusions 155, 159 potassium-argon 246, 247 photomicrographs 148, 150, 151, 154, 156, rubidium-strontium 246, 247 157 uranium-lead 246, 247 precursors 42 Ages of chondrules sample analysis 39 iodine-xenon 246, 247, 251-257 SEM studies 150, 151, 152, 154, 156, 157 potassium-argon 246, 247, 250, 251, 257, 258 texture 39, 41, 155 rubidium-strontium 246-250, 258 thermal history 255 uranium-lead 246-248, 258 xenon closure 254 Allegan Allende inclusions 145 bulk analysis of chondrules 48, 49 ages 255 chemistry 46 initial iodine 256· chondrule ages 251, 256, 257 iodine-xenon dating 255 chondrule oxygen isotope analysis 40 isochrons 255 chondrules 44, 47 isotope analysis 39 classification 46, 50 sample analysis 39 composition 46 texture 39 description 46 Allende matrix 145, 257 equilibration 44, 50 alteration 159 © Lunar and Planetary Institute • Provided by the NASA Astrophysics Data System 360 Chondrules and their Origins 1983chto.conf..359.