Contents

Russian Journal of Developmental Biology

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Vol. 50, No. 6, 2019

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Short Communications

Darwin’s Heritage: Endless Evolution of a Species Concept

I. Yu. Bakloushinskaya p. 287  abstract

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History of Biology

From Idea to Law: Theory, Concept and Terminological Formation in Ernst Haeckel’s Works

Karl Porges, Ian G. Stewart, Uwe Hoßfeld and Georgy S. Levit p. 290  abstract

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Reviews

Evolution of Metazoan Life Cycles and the Origin of Pelagic Larvae

V. V. Malakhov, E. V. Bogomolova, T. V. Kuzmina and E. N. Temereva p. 303  abstract

In Search of the Ancestral Organization and Phylotypic Stage of Porifera

A. V. Ereskovsky p. 317  abstract

One Upward, Two Steps Down: Order of Floral Organ Initiation

M. V. Remizowa p. 325  abstract

History of Evolutionary Developmental Biology

N. D. Ozernyuk p. 341  abstract

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