Results 91 to 100 of about 2,607 (232)

Sarcopterygii do Eopermiano da Bacia do Paraná, Estado de São Paulo

Revista do Instituto Geológico, 2012
Esta contribuição constitui uma revisão dos Sarcopterygii (Coelacanthimorpha - celacantos; Tetrapodomorpha - Osteolepimorpha e tetrápodes) do Eopermiano da Bacia do Paraná no Estado de São Paulo. O outro grupo importante de sarcopterígeos - Dipnoi (peixes pulmonados) - ainda não foi registrado nesse estado no Eopermiano.
Artur Chahud, Setembrino Petri
openaire   +2 more sources

Telencephalic eversion in embryos and early larvae of four teleost species

Evolution &Development, Volume 26, Issue 2, March 2024.
The telencephalon of ray‐finned fishes undergoes eversion, not evagination as in the rest of vertebrates. We show that the formation of the ventricle followed by a rostro‐caudal telencephalic expansion is key for the formation of an everted telencephalon in teleosts.
Mónica Folgueira, Jonathan D. W. Clarke
wiley   +1 more source

Dynamics of dental evolution in ornithopod dinosaurs. [PDF]

, 2016
Ornithopods were key herbivorous dinosaurs in Mesozoic terrestrial ecosystems, with a variety of tooth morphologies. Several clades, especially the 'duck-billed' hadrosaurids, became hugely diverse and abundant almost worldwide.
A Osi, A Prieto-Márquez, A Prieto-Márquez, AR Fiorillo, AT McDonald, AT Mcdonald†, B Vila, CW Gilmore, D Bapst, DB Norman, DB Weishampel, DB Weishampel, DC Tank, DE Fastovsky, DJ Gower, GM Erickson, GT Lloyd, GT Lloyd, H You, J Hill, JH Ostrom, JS Tweet, K Takahashi, M Sakamoto, MJ Anderson, MJ Benton, MJ Benton, MJ Hopkins, PA Goloboff, PJ Makovicky, PM Barrett, PM Barrett, PR Bell, PR Bell, PR Crane, RA Close, RJ Butler, RJ Butler, S Zan, SL Brusatte, SL Brusatte   +40 more
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Large Tristichopteridae (Sarcopterygii, Tetrapodomorpha) from the Late Famennian Evieux Formation of Belgium [PDF]

Palaeontology, 2002
Remains of two large sarcopterygians are described from Famennian deposits in Belgium. One of them is referred to Eusthenodon wängsjöi Jarvik; it is the first occurrence of this genus in Belgium. The other, much larger one, appears to be a tristichopterid.
openaire   +1 more source

Adjustments of fishes to specific conditions in extreme habitats [PDF]

, 2010
Ribe su najbrojniji kralješnjaci. Nalazimo ih u dubokom moru gdje nema svjetla i gdje je enorman tlak. U polarnim vodama gdje je temperatura vode ispod nula °C.
Špelić, Ivan
core   +2 more sources

Diverse New Microvertebrate Assemblage from the Upper Triassic Cumnock Formation, Sanford Subbasin, North Carolina, USA [PDF]

, 2012
The Moncure microvertebrate locality in the Cumnock Formation, Sanford sub-basin, North Carolina, dramatically increases the known Late Triassic age vertebrate assemblage from the Deep River Basin.
Andrew B. Heckert, Arambourg, Baszio, Bengston, Benton, Berg, Blagoderov, Bock, Broom, Campbell, Case, Case, Case, Cifelli, Cope, Cope, Cornet, Crompton, Currie, Davidow-Henry, Emmons, Evans, Farlow, Fraas, Fraser, Fraser, Fraser, Gauthier, Gauthier, Godefroit, Godefroit, Godefroit, Godefroit, Grande, Hahn, Hahn, Hahn, Heckert, Heckert, Heckert, Heckert, Heckert, Heckert, Heckert, Hopson, Hopson, Huber, Huber, Huene, Huene, Huene, Huene, Hunt, Hunt, Hunt, Hunt, Huxley, Janvier, Jenkins, Jonathan S. Mitchell, Kammerer, Kaye, Kemp, Klein, Langer, Linnaeus, Liu, Liu, Long, Lucas, Martin, McCune, McCune, Milner, Milner, Mitchell, Murry, Murry, Müller, Nesbitt, Olsen, Olsen, Olsen, Olsen, Olsen, Olsen, Osborn, Owen, Owen, Paul E. Olsen, Regan, Reinemund, Rieppel, Sawin, Schaeffer, Schaeffer, Schaeffer, Schaeffer, Sereno, Shubin, Sues, Sues, Sues, Sues, Vincent P. Schneider, Wild, Wild, Williston, Woodward, Zanno, Zittel   +110 more
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Phylogenetic analysis of the SAP30 family of transcriptional regulators reveals functional divergence in the domain that binds the nuclear matrix

BMC Evolutionary Biology, 2009
Background Deacetylation of histones plays a fundamental role in gene silencing, and this is mediated by a corepressor complex containing Sin3 as an essential scaffold protein.
Mäki Markku, Heinonen Taisto YK, Viiri Keijo M, Lohi Olli   +3 more
doaj   +1 more source

Eutherians experienced elevated evolutionary rates in the immediate aftermath of the Cretaceous-Palaeogene mass extinction. [PDF]

, 2016
The effect of the Cretaceous-Palaeogene (K-Pg) mass extinction on the evolution of many groups, including placental mammals, has been hotly debated. The fossil record suggests a sudden adaptive radiation of placentals immediately after the event, but ...
Halliday TJD, Kondrashov PE, R Development Core Team, Rose KD, Stanley SM, Wilson DE   +5 more
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A Late Devonian coelacanth reconfigures actinistian phylogeny, disparity, and evolutionary dynamics

Nature Communications
The living coelacanth Latimeria (Sarcopterygii: Actinistia) is an iconic, so-called ‘living fossil’ within one of the most apparently morphologically conservative vertebrate groups.
Alice M. Clement, Richard Cloutier, Michael S. Y. Lee, Benedict King, Olivia Vanhaesebroucke, Corey J. A. Bradshaw, Hugo Dutel, Kate Trinajstic, John A. Long   +8 more
doaj   +1 more source

I. Observation of external morphology [PDF]

, 2017
本書の原著は，東海大学海洋学部の学生実験を主な対象とした「魚類学実験テキスト」として日本語で出版されました。今回，対象読者としてアジア・アフリカ域等の学部学生を念頭に，汎用性のある章を選んで翻訳出版いたしました。本出版は，総合地球環境学研究所エリアケイパビリティープロジェクトおよび東海大学海洋学部の助成を受けて行いました。I. Observation of external morphology ―――――――――――――――― 1 1.

core