Journal
PALAEONTOLOGIA ELECTRONICA
Volume 25, Issue 3, Pages -Publisher
COQUINA PRESS
DOI: 10.26879/1232
Keywords
Calcareous sponges; tabulate corals; bryozoans; endobionts; bioclaustrations; Upper Ordovician; Baltica
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Funding
- Institute of Ecology and Earth Sciences, University of Tartu
- Estonian Research Council [PUTJD1106]
- Swedish Research Council (VR ) [2018-03390]
- Swedish Research Council [2018-03390] Funding Source: Swedish Research Council
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Symbiotic associations between endobiotic cornulitids and tabulate corals and stromatoporoids in the Katian (Late Ordovician) of Estonia were studied. The cornulitids benefited from the stable substrate and additional protection provided by the hosts' skeletons. This study also reported symbiotic lingulates and Chaetosalpinx-like bioclaustration structures found in bryozoans for the first time. The most diverse fauna of endobionts was hosted by bryozoans in the Katian of Baltica, while corals and stromatoporoids hosted fewer groups of endobionts.
Endobiotic cornulitids formed symbiotic associations with tabulate corals and stromatoporoids in the Katian (Late Ordovician) of Estonia. The cornulitids benefited from a stable substrate and additional protection against predators offered by the skeleton of their hosts. Symbiotic lingulates and Chaetosalpinx-like bioclaustration structures are here reported from bryozoans for the first time. The endobiotic lingulates were also symbionts of tabulate corals in the Katian of Estonia. Bryozoans hosted the most diverse fauna of endobionts in the Katian of Baltica. Corals and stromatoporoids hosted just few groups of endobionts in the Katian of Baltica.
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