Book contents
- Cladistics
- The Systematics Association Special Volume Series
- Cladistics
- Copyright page
- Dedication
- Contents
- Preface
- Acknowledgements
- Introduction: Carving Nature at Its Joints, or Why Birds Are Not Dinosaurs and Men Are Not Apes
- Part I The Interrelationships of Organisms
- Part II Systematics: Exposing Myths
- 3 Relationship Diagrams
- 4 Essentialism and Typology
- 5 Monothetic and Polythetic Taxa
- 6 Non-taxa or the Absence of –Phyly: Paraphyly and Aphyly
- Part III The Cladistic Programme
- Part IV How to Study Classification
- Part V Beyond Classification
- Afterword
- Index
- Systematics Association Special Volumes
- References
4 - Essentialism and Typology
from Part II - Systematics: Exposing Myths
Published online by Cambridge University Press: 20 July 2020
- Cladistics
- The Systematics Association Special Volume Series
- Cladistics
- Copyright page
- Dedication
- Contents
- Preface
- Acknowledgements
- Introduction: Carving Nature at Its Joints, or Why Birds Are Not Dinosaurs and Men Are Not Apes
- Part I The Interrelationships of Organisms
- Part II Systematics: Exposing Myths
- 3 Relationship Diagrams
- 4 Essentialism and Typology
- 5 Monothetic and Polythetic Taxa
- 6 Non-taxa or the Absence of –Phyly: Paraphyly and Aphyly
- Part III The Cladistic Programme
- Part IV How to Study Classification
- Part V Beyond Classification
- Afterword
- Index
- Systematics Association Special Volumes
- References
Summary
Part of the problem of species delineation is the fact that morphology, as an approach for delimiting species, has some limits. Traditional morphology-based taxonomy only discriminates what Cain (1954) called ‘morphospecies’, i.e. species exclusively established on morphology … Traditional morphology-based taxonomy is not the study of life’s diversity per se, but rather the study of one of its multiple facets, morphological diversity, which I refer to as ‘morphodiversity’.
- Type
- Chapter
- Information
- CladisticsA Guide to Biological Classification, pp. 108 - 118Publisher: Cambridge University PressPrint publication year: 2020