Igor Ya. Pavlinov was, until his retirement in 2018, a leading researcher and chief of the Mammal Division at the Zoological Museum at the Lomonosov Moscow State University. Currently, he is the curator of mammals at this museum. His principal research interests are in theoretical taxonomy and phylogenetics, systematics of mammals, and morphometrics. He is the author of several dozen books on natural history, including: Cladistic Analysis: Methodological Aspects (1990), Evolution of Life (2001), Systematics of Mammals of the World (2003), Foundation of the Contemporary Phylogenetics (2005), Nomenclature in Systematics (2015) and its successor Taxonomic Nomenclature-What's in a Name: Theory and History (2022), Foundation of Biological Systematics (2018) and its successor Biological Systematics: History and Theory (2021), Mammals of Russia: A Reference and Guide (2019), several books on particular orders and families of mammals, etc.

PREFACE

INTRODUCTION

CHAPTER 1. THE SPECIES PROBLEM: IN BROAD STROKES ON A CONCEPTUAL HISTORICAL CANVAS

1.1. Developing cognitive situation

1.1.1. Structure of cognitive situation

1.1.2. Species, species concept, species problem

1.2. History on a conceptualistic account

1.3. A historical narrative of the species problem

CHAPTER 2. ANTIQUE NATURAL PHILOSOPHY: SPECIES AS EIDOS

2.1. Classical period: the birth of genos and eidos

2.1.1. Plato's eidology

2.1.2. Aristotle's ousiology

2.1.3. Aristotelian polysemy: the problem arises

2.1.4. Theophrastus' Enquiry into Plants

2.2. Neoplatonists: Porphyry's questions

CHAPTER 3. THE MIDDLE AGES: SPECIES AS UNIVERSALIA

3.1. An eve of scholasticism: the beginning of genus and species

3.2. Realism: species really exists

3.3. Conceptualism: species concept refers to something real

3.4. Nominalism: species concept refers to nothing real

3.5. Genus-species scheme

CHAPTER 4. THE RENAISSANCE AND THE EARLY MODERN TIMES: SPECIES AS CLASSIFICATION UNIT

4.1. The Renaissance turn and the "second" scholasticism

4.2. The early Modern Times: natural-classificatory dualism

4.3. The origin of systematics: species of the living

4.3.1. Herbal epochas a precursor

4.3.2. From Cesalpino to Ray: a scholastic legacy

4.3.3. Tournefort and Linnaeus: disconnection of genus and species

4.3.4. Adanson, Jussieu, etc.: the birth of natural systematics

4.3.5. "Ladderists" against "Systemists"

CHAPTER 5. THE MODERN TIMES: SPECIES AS BIOLOGICAL UNIT

5.1. The forerunners: initial routsofobjectivation of biologicalspecies

5.1.1. Biblical motifs

5.1.2. Generative idea

5.2. The 19th century and beyond: biologization of the species problem

5.2.1. Evolutionary idea: species as an actor of biologicalevolution

5.2.2. Ecological idea: species as a component of ecosystem

5.3. Biosystematicsand others: fall and rise of species

5.4."Multiplication of essences": the kinds of species

CHAPTER 6. THE CONTEMPORARY: THE NEWEST ISSUES

6.1. Species definition: a conceptual pyramid

6.2. Species ontology: new questions

6.3. The "new essentialism": an evolving specieshood?

6.4. If not species, then what?

REFERENCES

INDEX