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Tetrapod

The tetrapod limb: A hypothesis on its origin

The Tetrapod Limb: A Hypothesis on Its Origin The tetrapod limb: A hypothesis on its origin

biology of the tetrapod

Evolutionary developmental. Development 1994 Supplement, 163-168 (1994) Printed in Great Britain @ The Company of Biologists Limited 1994 Evolutionary developmental biology of the tetrapod limb J. Richard Hinchliffe lnstitute of Biological Sciences, University of Wales, Aberystwyth, Wales, UK ...

Tetrapod phylogeny

© J989 Elsevier Science Publishers B. V. (Biomédical Division) The Hierarchy of Life B. Fernholm, K. Bremer and H. Jörnvall, editors 337 CHAPTER 25 Tetrapod phylogeny JACQUES GAUTHIER', DAVID CANNATELLA^, KEVIN DE QUEIROZ^, ARNOLD G. KLUGE* and TIMOTHY ROWE^ ' Deparlmenl qf Herpelology ...

The GreatestStep in Vertebrate History: A Paleobiological ...

700 The GreatestStep in Vertebrate History: A Paleobiological Review of the Fish-Tetrapod Transition * John A. Long 1,† MalcolmS. Gordon 2 1 Museum Victoria, Melbourne, Victoria 3001, Australia; 2 Department of Ecology and Evolutionary Biology, University of California, Los Angeles, California ...

TETRAPOD ICHNOFACIES AND THEIR UTILITY IN THE PALEOZOIC

113 INTRODUCTION More than two centuries ago, tetrapod tracks were the first trace fossils recognized by scientists (Steinbock, 1989). However, for most of the next two centuries, the study of tetrapod trace fossils lagged behind that of invertebrate trace fossils in both volume and complexity.

A global hiatus in the Middle Permian tetrapod fossil record

A global hiatus i n the Middle Permian tetrapod fossil record SpencerG. Lucas New MexicoMuseum of Natural History, 1801 Mountain Road N. W., Albuquerque, New Mexico 87104 USA email: slucas@nmmnh.state.nm.us ABSTRACT: For about a half century, most vertebrate paleontologistsh ave correlated the ...

Development of an Innovative Breakwater Armour Unit

Table 1: Classification of armour units by shape, placement and stability factor Stability factor Placement pattern Number of layers Shape Own weight Interlocking Friction Simple ( Ia ) Cube, Antifer Cube, Modified Cube ( Ib ) Tetrapod, Akmon, Tribar, Tripod Double layer Complex ( Ic ) Stabit, Dolos Simple ( Ie ) Cube ...

A Devonian tetrapod-like fish and the evolution of the ...

©2006 Nature Publishing Group A Devonian tetrapod-like fish and the evolution of the tetrapod body plan EdwardB. Daeschler 1, Neil H. Shubin 2 &Farish A. Jenkins Jr 3 The relationship of limbed vertebrates (tetrapods) to lobe-finned fish (sarcopterygians) is well established, but the origin of ...

THE TRIASSIC TETRAPOD TRACK RECORD: ICHNOFAUNAS, ICHNOFACIES ...

78 Lucas, S.G. and Spielmann, J.A., eds., 2007, The Global Triassic. New Mexico Museum of Natural History and Science Bulletin 41. THE TRIASSIC TETRAPOD TRACK RECORD: ICHNOFAUNAS, ICHNOFACIES AND BIOCHRONOLOGY ADRIAN P. HUNT AND SPENCER G. LUCAS New Mexico Museum of Natural History, 1801 ...

CORE-LOC Concrete Armor Units

Typical armor units, as shown in Figure 1, include thedolos, tribar, tetrapod, ACCROPODE@ (hereafter referred to asaccropode), and block. These units have a range of stability and structural capacity characteristics.