Morphological characters and ontogenetic development of deep-sea species of the genus Caryophyllia
Vertino A, Stolarski J, Schulbert C (2019)
Publication Language: English
Publication Type: Conference contribution, Abstract of a poster
Publication year: 2019
Pages Range: 74
Conference Proceedings Title: 13th International Symposium onFossil Cnidaria and PoriferaModena, ABSTRACT BOOK
Event location: Modena
ISBN: 979-12-200-5040-1
URI: http://www.13thfossilcnidaria.unimore.it/wp-content/uploads/2019/09/Abstract-book-ISFCP-2019.pdf
Abstract
The genus Caryophyllia is known from shallow- to deep-waters in all oceans and seas of the planet and itincludes 66 valid Recent species. Though frequently reported as fossil, at least since the Upper Jurassic, thedistribution of valid Caryophyllia species in the paleontological record is still unknown. Only consideringthe Neogene and Pleistocene deposits of the Mediterranean, over 100 species are mentioned in the ancientliterature but they have never been revised following modern taxonomic concepts. The diagnostic taxonomic character that distinguishes the genus Caryophyllia from the other genera ofthe family Caryophylliidae is the presence of pali before the penultimate, rarely the antepenultimate cycle ofsepta. Mitochondrial 16S rRNA phylogeny analyses of modern species support grouping Caryophyllia in oneclade, however, two other taxa included in this clade (Crispatotrochus rugosus and Dasmosmilia lymani) donot develop pali (Crispatotrochus) or develop structures called paliform lobes before all but the last septalcycle. The distinction between pali and paliform lobes remains ambiguous not only in Caryophyllia but inseveral other scleractinian taxa. For that reason, precise documentation of ontogenetic development of bothskeletal structures is of general importance for scleractinian coral researchers. This study aims at describing the morphological variability and ontogenetic development of deep-sea Caryophyllia species collected from Pleistocene deposits of southern Italy and from modern seafloors of theMediterranean and the NE Atlantic. By analysing SEM and micro-CT images, as well as polished and thinsections, particular attention has been devoted to (1) the micromorphology of the coral wall and calicularfeatures and (2) the arrangement and ontogenetic development of pali.
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APA:
Vertino, A., Stolarski, J., & Schulbert, C. (2019, September). Morphological characters and ontogenetic development of deep-sea species of the genus Caryophyllia. Poster presentation at 13th International Symposium on Fossil Cnidaria and Porifera 2019, Modena, IT.
MLA:
Vertino, Agostina, Jarosław Stolarski, and Christian Schulbert. "Morphological characters and ontogenetic development of deep-sea species of the genus Caryophyllia." Presented at 13th International Symposium on Fossil Cnidaria and Porifera 2019, Modena Ed. Università di Modena e Reggio Emilia, Dipartimento di Scienze Chimiche e Geologiche, 2019.
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