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The principle of frozen evolution and its manifestation in the fossil record: the brachiopod genus Aegiromena Havlíček, 1961 (Upper Ordovician, Czech Republic)
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SYSNO ASEP 0318485 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title The principle of frozen evolution and its manifestation in the fossil record: the brachiopod genus Aegiromena Havlíček, 1961 (Upper Ordovician, Czech Republic) Title Princip zamrzlé evoluce a její projev ve fosilním záznamu: brachiopodi rodu Aegiromena Havlíček, 1961, ve svrchním ordoviku ČR Author(s) Mikuláš, Radek (GLU-S) RID, SAI Source Title Paleontological Workshop Held in Honour of Doc. RNDr. Jaroslav Kraft, CSc. : (9.4.1940-10.1.2007) : Plzeň, 17th and 18th October 2008. - Prague : Czech Geological Society,, 2008 / Budil P. - ISBN 978-80-904208-1-6 Pages s. 32-38 Number of pages 6 s. Action Paleontological Workshop Held in Honour of Doc. RNDr. Jaroslav Kraft, CSc Event date 17.10.2008-18.10.2008 VEvent location Plzeň Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords frozen evolution ; brachiopods ; Ordovician Subject RIV DB - Geology ; Mineralogy R&D Projects IAA304130601 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z30130516 - GLU-S (2005-2011) Annotation The presented study is in a good agreement with the idea of a frozen evolution of the genus Aegiromena, or, more precisely, it illustrates a gradual disappearance of the ability to respond to the environmental change by a selectively advantageous change in its morphology. After its freezing, further evolution of Aegiromena brings very little news; only subtle changes in the size of adults, subtle and variable changes in the width/length ratio, and a changing variability of muscular imprints can be noted. Workplace Institute of Geology Contact Jana Popelková, popelkova@gli.cas.cz, Tel.: 226 800 273 Year of Publishing 2009
Number of the records: 1