Morphology, ontogeny and phenotypic plasticity of the microcrinoid Treocrinus from the Třebotov Limestone (Devonian, Daleje-Třebotov Formation; Barrandian area, Czech Republic)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23420%2F25%3A43977607" target="_blank" >RIV/49777513:23420/25:43977607 - isvavai.cz</a>
Result on the web
<a href="http://www.geology.cz/bulletin/fulltext/1918_Mergl_250713.pdf" target="_blank" >http://www.geology.cz/bulletin/fulltext/1918_Mergl_250713.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3140/bull.geosci.1918" target="_blank" >10.3140/bull.geosci.1918</a>
Alternative languages
Result language
angličtina
Original language name
Morphology, ontogeny and phenotypic plasticity of the microcrinoid Treocrinus from the Třebotov Limestone (Devonian, Daleje-Třebotov Formation; Barrandian area, Czech Republic)
Original language description
New data on morphology, ontogeny, phenotypic plasticity and mode of life of the microcrinoid Treocrinus ericius from the Třebotov Limestone are discussed. The aboral cup shape variations from the barrel- to the bowl-shaped and the ontogenetic sequence of radial facets are presented. Some specimens were likely stemless to the adult stage, and their cup bases were directly fitted to a holdfast. The irregularity of cup shape is explained by different habitats. Individuals in the restricted, likely cryptic habitat lacked the stem. They had low barrel-like cups, whereby while those in more spaced microhabitat formed higher bowl-shaped cups. Examination of 160 specimens indicate that bowl-shaped cup represents a prevalent form of a theca. The aboral articular facet of bowl-shaped specimens keep a distinct lumen, a narrow crenularium and a shallow areola that confirm a development of a column in part of the population. The species achieved the maximum occurrence in the upper part of the Třebotov Limestone (Daleje-Třebotov Formation) near the Emsian-Eifelian boundary. Abundance of the Treocrinus and other microcrinoids, and abundance of associated invertebrates in the Třebotov Limestone clearly contrast with the invertebrate diversity after the Choteč Event near the base of the Choteč Formation.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10506 - Paleontology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Bulletin of Geosciences
ISSN
1214-1119
e-ISSN
1802-8225
Volume of the periodical
100
Issue of the periodical within the volume
2
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
14
Pages from-to
123-136
UT code for WoS article
001538882700002
EID of the result in the Scopus database
2-s2.0-105011739465