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Within the Callovian-to-Oxfordian sequence, transgressive upon the Variscan rhyodacite laccolith exposed at Zalas in the Cracow Upland, southern Poland, and far-known due to its ubiquitous fossils of various kinds, to this study subjected are the echinoids. The Callovian assemblage from the variably-sized clastics is low-diversified, to contain 4 taxa of a wider regional occurrence. The Lower (up...
The autecology of echinoids from the Middle Oxfordian coraliferous limestones of Bałtów (NW margin of the Holy Cross Mountains, Central Poland) is discussed, as aparent from the morphology of tests, ambulacral pores for tube feet, and spines. Inferred is mode of life, locomotion, and feeding, as well as the diet of the taxonomically recognised three species: Paracidaris florigemma (Phillips, 1829)...
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