Aretz et al_2011.pdf - ORBi - Université de Liège
Aretz et al_2011.pdf - ORBi - Université de Liège
Aretz et al_2011.pdf - ORBi - Université de Liège
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Kölner Forum Geol. P<strong>al</strong>äont., 19 (2011)<br />
M. ARETZ, S. DELCULÉE, J. DENAYER & E. POTY (Eds.)<br />
Abstracts, 11th Symposium on Fossil Cnidaria and Sponges, <strong>Liège</strong>, August 19-29, 2011<br />
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Stromatoporoids dominate the large skel<strong>et</strong><strong>al</strong> organisms, with princip<strong>al</strong> occurrence in biostromes and<br />
mound <strong>de</strong>posits. Stromatoporoid genera inclu<strong>de</strong>: Actinostroma, Amphipora, Euryamphipora, Atelodictyon,<br />
Clathrocoilona, Idiostroma, S<strong>al</strong>airella, Stachyo<strong>de</strong>s, Stictostroma, Stromatopora and Trup<strong>et</strong>ostroma.<br />
Low profile stromatoporoids (dominated by Stictostroma and S<strong>al</strong>airella) are often observed at the<br />
beginning of sequences, as stabilizers and in outer to outer-intermediate platform facies and in off-mound<br />
and <strong>de</strong>ep mound facies (so they likely led to expansion of the carbonate factory). High domic<strong>al</strong><br />
stromatoporoids (dominated by Actinostroma, Atelodictyon and Trup<strong>et</strong>ostroma) occur in inner-intermediate<br />
and restricted platform facies, in association with branching stromatoporoids. The branching<br />
stromatoporoids are the most ubiquitous shapes.<br />
Stromatoporoid growth forms seem to be related mostly to environment<strong>al</strong> param<strong>et</strong>ers but there is <strong>al</strong>so<br />
some taxonomic control (Fig. 2 and DA SILVA <strong>et</strong> <strong>al</strong>. 2011 a and b).<br />
Fig. 2: Description of the main stromatoporoid morphologies and their distribution on the platform in relation to<br />
the substrate, biostrome and environment. Sti. = Stictostroma, StA. = Stachyo<strong>de</strong>s austr<strong>al</strong>e and pf = platform.<br />
DA SILVA, A.C., KERSHAW, S. & BOULVAIN, F. (2011a): Sedimentology and stromatoporoid p<strong>al</strong>eoecology of Frasnian<br />
(Upper Devonian) mud mounds from southern Belgium. - L<strong>et</strong>haia, in press.<br />
DA SILVA, A.C., KERSHAW, S. & BOULVAIN, F. (2011b): Stromatoporoid p<strong>al</strong>aeoecology in the Frasnian (Upper Devonian)<br />
Belgian platform, and its applications in interpr<strong>et</strong>ation of carbonate platform environments. - P<strong>al</strong>aentology, in press.<br />
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