[On the evolution of upper Paleozoic straight Cephalopoda].
D000818:Animals; D005075:Biological Evolution; D049830:Cephalopoda; D008974:Mollusca; D010163:Paleontology
MOLLUSKS; PALEONTOLOGY
K voprosu ob evolîutsii verkhnepaleologicheskikh prîamykh golovonogikh.