Chapter

ISOSPONDYLI (Primitive Teleosts)

William K. Gregory

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The American Philosophical Society Press

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This chapter is in the book Fish Skulls

© 1933 The American Philosophical Society Press

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© 1933 The American Philosophical Society Press

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Chapters in this book

Frontmatter I
CONTENTS III
PREFACE VII
THE BEGINNINGS OF THE FISH SKULL 75
CLASSIFICATION AND NOMENCLATURE OF SKULL PARTS 88
THE EVOLUTION OF PARTICULAR SKULL TYPES 99
ISOSPONDYLI (Primitive Teleosts) 135
OSTARIOPHYSI 181
HETEROMI 200
APODES 202
MESICHTHYES (Intermediate Teleosts) 204
ACANTHOPTERYGII (Spiny-finned Teleosts) 231
TENTATIVE PHYLOGENV OF THE PRINCIPAL SKULL TYPES 411
THE FISH SKULL AS A NATURAL MECHANISM 412
DISCUSSION: THE FISH SKULL AS A DOCUMENT OF EVOLUTION 443
SUMMARY: THE PROBLEM OF DIFFERENTIAL GROWTH AND EVOLUTION IN FISH SKULLS 450
BIBLIOGRAPHY 457
INDEX 469

https://doi.org/10.70249/9798893984101-005

Chapters in this book

Frontmatter I
CONTENTS III
PREFACE VII
THE BEGINNINGS OF THE FISH SKULL 75
CLASSIFICATION AND NOMENCLATURE OF SKULL PARTS 88
THE EVOLUTION OF PARTICULAR SKULL TYPES 99
ISOSPONDYLI (Primitive Teleosts) 135
OSTARIOPHYSI 181
HETEROMI 200
APODES 202
MESICHTHYES (Intermediate Teleosts) 204
ACANTHOPTERYGII (Spiny-finned Teleosts) 231
TENTATIVE PHYLOGENV OF THE PRINCIPAL SKULL TYPES 411
THE FISH SKULL AS A NATURAL MECHANISM 412
DISCUSSION: THE FISH SKULL AS A DOCUMENT OF EVOLUTION 443
SUMMARY: THE PROBLEM OF DIFFERENTIAL GROWTH AND EVOLUTION IN FISH SKULLS 450
BIBLIOGRAPHY 457
INDEX 469

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