Acta Palaeontologica Polonica > Issues > Issue

Acta Palaeontologica Polonica 21 (1) 1976

Articles

The problem of graptolite affinities in the light of ultrastructural studies on peridermal derivatives in pterobranchs

Adam Urbanek

Acta Palaeontologica Polonica 21 (1), 1976: 3-36

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Review of blastogeny in palaeozoic corals and description of lateral increase in some Upper Ordovician rugose corals

Jerzy Fedorowski and Robert K. Jull

Acta Palaeontologica Polonica 21 (1), 1976: 37-78

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Trigoniidae of the Dogger of Łęczyca (Central Poland)

Halina Pugaczewska

Acta Palaeontologica Polonica 21 (1), 1976: 79-96

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Contribution to the systematics and phylogeny of Amphiastraeina (Scleractinia)

Galina K. Melnikova and Ewa Roniewicz

Acta Palaeontologica Polonica 21 (1), 1976: 97-114

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Some difficulties in recognition of sexual dimorphism in jurassic perisphinctids (Ammonoidea)

Wojciech Brochwicz-Lewiński and Zdzisław Różak

Acta Palaeontologica Polonica 21 (1), 1976: 115-124

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