Vol. 59, No. 9, 2025

Paleontological Journal

Foreword

Protostomia and Deuterostomia: Do They Exist?

V. V. Malakhov and O. V. Ezhova p. 994 abstract

Embryonic Induction Mechanisms in Vertebrates: Conserved Principles and Flexible Details

A. V. Bayramov, G. V. Ermakova, A. V. Kucheryavyy, and A. G. Zaraisky p. 1040 abstract

The Taxonomic Characters of Coral Polyps and the Position of the Recently Described Ordovician Coral Lindaphylon Rozhnov, 2024 (Cnidaria: Anthozoa: Lindaphylonaceae: Lindaphylonidae)

S. D. Grebelnyi, N. Yu. Ivanova, T. N. Molodtsova, E. A. Nefedova, S. V. Rozhnov, O. V. Savinkin, D. Hoang Thuy, and Q. Do Huu p. 1057 abstract

From Embryo to Colony: The Role of Wnt Signaling Pathways in Body Plan Formation in Cnidaria

A. A. Vetrova and S. V. Kremnyov p. 1083 abstract

Mechanisms and Evolution of Primary Axial Specification in Annelid Development

V. V. Kozin, M. G. Grinberg, A. I. Kairov, N. A. Filippova, and A. Y. Shalaeva p. 1099 abstract

Vestibular Glands in Cheilostome Bryozoans: Structure, Distribution and Probable Function

E. A. Bogdanov, E. L. Yakovis, A. V. Artemieva, O. N. Kotenko, and A. N. Ostrovsky p. 1114 abstract

Pseudoerect Colonies and Erect Colonies with an Axial Canal and a Central Cavity in Fossil Bryozoans: Morphology and Paleoecology

A. V. Koromyslova p. 1130 abstract

Key Innovations in the Evolution of Post-Paleozoic Bryozoans of the Class Stenolaemata

L. A. Viskova p. 1146 abstract

The Problem of Axial Organization and Body Plan of Brachiopods in Phylogeny

A. A. Madison, T. V. Kuzmina, E. H. Temereva, and V. V. Malakhov p. 1154 abstract

Morphobiological Analysis of the Shell Structure in the Brachiopod Subclass Strophomenata

G. A. Afanasjeva p. 1167 abstract

Pentaxonic Body Plan in Adult Living Echinoderms

V. V. Isaeva p. 1174 abstract

The Larval Anteroposterior Bilateral Asymmetrical Axis of Echinoderms; a Landmark for Establishing Ambulacral Homology

S. V. Rozhnov and G. S. Tkacheva p. 1187 abstract

Exploring the Pathways and Mechanisms of Evolutionary Transformation of Paired Appendages in Gnathostomes

D. N. Mednikov, A. G. Zaraysky, and A. V. Bayramov p. 1210 abstract

From Morphomechanics to Integral Mechanobiology

A. S. Ermakov p. 1255 abstract

Life Cycle Modifications, Neoteny, Retardation, Heterochrony (Using the Example of Amphibians)

V. L. Vershinin and D. L. Berzin p. 1267 abstract

Formulas of the Multilevel Increase in Biological Complexity during Progressive Evolution of Organisms

A. P. Kozlov p. 1273 abstract

Photosymbiosis as the Main Evolutionary Pathway of Modular Fungi and Corals

A. A. Notov p. 1278 abstract

Polyvariance of Ontogeny and Structural Evolution of Modular Organisms

L. A. Zhukova and A. A. Notov p. 1291 abstract

Models of Ancestral Ontogenetic Cycles: Doridida, Nudibranchia, Bilateria

T. A. Korshunova and A. V. Martynov p. 1301 abstract

Nothing in Biology Makes Sense Except in the Light of Ontogeny—Organism as Ontogeny, a New Paradigm for Science

A. V. Martynov and T. A. Korshunova p. 1319 abstract

Contents

Paleontological Journal