Skip to main content Skip to main navigation menu Skip to site footer
Articles
Published: 2019-10-21

First report of the mitrate Lagynocystis (Echinodermata: Stylophora) in the Ordovician of the Baltic paleobasin

Borissiak Paleontological Institute PAS, Profsoyuznaya str., 123, Moscow 117647, Russia
Borissiak Paleontological Institute PAS, Profsoyuznaya str., 123, Moscow 117647, Russia
St. Petersburg, Russia
Echinodermata Lagynocystis Stylophora Mitrata carpoids echinoderms Baltic Paleobasin Ordovician stereom

Abstract

Three incomplete thecae of the stylophoran Lagynocystis cf. pyramidalis (Barrande, 1887) are described from the Upper Ordovician of the Baltic Paleobasin for the first time. These specimens of Lagynocystis are the first records of this genus from the Ordovician outside peri-Gondwana, thus significantly expanding its paleogeographical distribution of this genus. Due to the preservation of the specimens the microstructure of the stereom is studied for the first time in this genus.