Reconstructing the muscular ground pattern of phylactolaemate bryozoans: first data from gelatinous representatives [PDF]
BMC Evolutionary Biology, 2017 Background Phylactolaemata is commonly regarded the earliest branch within Bryozoa and thus the sister group to the other bryozoan taxa, Cyclostomata and Gymnolaemata. Therefore, the taxon is important for the reconstruction of the bryozoan morphological
Natalie Gawin +2 more
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Unity in diversity: a survey of muscular systems of ctenostome Gymnolaemata (Lophotrochozoa, Bryozoa) [PDF]
Frontiers in Zoology, 2018 Background Myoanatomical studies of adult bryozoans employing fluorescent staining and confocal laser scanning microscopy (CLSM) have been chiefly conducted on freshwater bryozoans.
Thomas F. Schwaha, Andreas Wanninger
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The unplumatellid Plumatella fruticosa found its home: Hirosella gen. nov. morphological arguments for the systematic placement of a freshwater bryozoan. [PDF]
J Morphol, 2023 The freshwater bryozoan Plumatella fruticosa has been ambiguously discussed, as it shows characters of several phylactolaemate clades. Besides the serrated body wall our morphological analysis found myoanatomical details unique for this species. Proportions of the digestive tract and tentacle sheath, the musculature of the latter, and lamellae of the ...
Bibermair J, Schwaha T.
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Why Homoscleromorph Sponges Have Ciliated Epithelia: Evidence for an Ancestral Role in Mucociliary Driven Particle Flux. [PDF]
J Exp Zool B Mol Dev EvolEpithelia are typically ciliated, except in sponges. Of all Porifera only Homoscleromorphs have motile cilia on their epithelia. Our data highlight the presence of cilia and mucociliary particle transport as a common feature of metazoa and a secondary loss in other sponge lineages.
Price VL +9 more
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Developing a phylogenetic framework for tiny Ordovician brachiopods (Atrypida: Anazyginae and Catazyginae) from the eastern United States [PDF]
Estonian Journal of Earth Sciences, 2023 Elucidating how environmental change can facilitate the differentiation of evolutionary lineages and the establishment of new species is a critical issue for understanding both the history of life and modern biota. Notably, speciation events are known to
Mariana Vilela-Andrade +1 more
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Hyoliths are Palaeozoic lophophorates [PDF]
Nature, 2017 Hyoliths are abundant and globally distributed 'shelly' fossils that appear early in the Cambrian period and can be found throughout the 280 million year span of Palaeozoic strata. The ecological and evolutionary importance of this group has remained unresolved, largely because of their poorly constrained soft anatomy and idiosyncratic scleritome ...
Moysiuk, J., Smith, M.R., Caron, J.-B.
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Environment and Natural Resources Journal, 2022 The wastewater treatment ponds of the King’s Royally Initiated Laem Phak Bia Environmental Research and Development (LERD) Project in west-central Thailand provide habitats for freshwater bryozoans, which are colonial invertebrate animals.
Wasinee Thongdang +2 more
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Exceptionally Preserved Setae: A Possible Morphological Synapomorphy of Cambrian Lophotrochozoans. [PDF]
Evol DevThe Lophotrochozoans comprise one of the major groups within the animal kingdom, while the relationships within this group remain unclear. We explored the microstructure and formation of setae and suggest that setae may represent a morphological synapomorphy of lophotrochozoans, which is currently dearth of morpho‐ultrastructure and comparative studies
Liang Y +5 more
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Dispersal, kin aggregation, and the fitness consequences of not spreading sibling larvae
Ecology, Volume 104, Issue 1, January 2023., 2023 Abstract Dispersal has far‐reaching implications for individuals, populations, and communities, especially in sessile organisms. Escaping competition with conspecifics and with kin are theorized to be key factors leading to dispersal as an adaptation. However, manipulative approaches in systems in which adults are sessile but offspring have behaviors ...
Scott C. Burgess +2 more
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Fossilized soft tissues in Palaeozoic bryozoans
Papers in Palaeontology, Volume 9, Issue 1, January/February 2023., 2023 Abstract Thin sections of three Palaeozoic bryozoans reveal fossilized soft tissues that show the position of organic cuticle and internal structures such as the membranous sac and gut. The fossilization occurred apparently due to fast burial under anoxic conditions.
Andrej Ernst, Jeffrey Thompson
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