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Phylogenomics reveals deep molluscan relationships
TLDR
This work uses transcriptome and genome data from all major lineages (except Monoplacophora) and recovers a well-supported topology for Mollusca to propose the node-based name Pleistomolluscan, which strongly support the Aculifera hypothesis and finds support for advanced cephalization and shells as possibly having multiple origins within Mollsusca. Expand
Fast evolving 18S rRNA sequences from Solenogastres (Mollusca) resist standard PCR amplification and give new insights into mollusk substitution rate heterogeneity
TLDR
The extreme morphological diversity of mollusks is mirrored in the molecular 18S data and shows elevated substitution rates mainly in three higher taxa: true limpets, Cephalopoda and Solenogastres and the phylogenetic tree based on 123 species shows limited resolution at the class level but illustrates the pitfalls of artificial groupings formed due to shared biased sequence composition. Expand
Phylogenomics of Lophotrochozoa with Consideration of Systematic Error
TLDR
Although the analyses do not unambiguously resolve lophotrochozoan phylogeny, they advance the field by reducing the list of viable hypotheses and can be applied to explore sources of incongruence and poor support in any phylogenomic data set. Expand
Comparative neuroanatomy suggests repeated reduction of neuroarchitectural complexity in Annelida
TLDR
It is concluded that the apparent homology of mushroom bodies in distantly related groups has to be interpreted as a plesiomorphy, pointing towards a considerably complex neuroarchitecture inherited from the last common ancestor, Urbilateria. Expand
Foregut glands of Solenogastres (Mollusca): Anatomy and revised terminology
TLDR
The results of recent investigations are added to earlier ones, and a classification system for these multicellular glands is proposed, and the importance of ventrolateral foregut gland characters for phylogenetic considerations within the Solenogastres is discussed. Expand
Aplacophoran Mollusks Evolved from Ancestors with Polyplacophoran-like Features
TLDR
It is argued that the simple body plan of recent aplacophorans is the result of simplification and does not represent a basal molluscan condition. Expand
Comparative neuroanatomy of Caudofoveata, Solenogastres, Polyplacophora, and Scaphopoda (Mollusca) and its phylogenetic implications
TLDR
An immunohistochemical survey is initiated to contribute new neuroanatomical data for several molluscan taxa, especially the lesser known Caudofoveata, Solenogastres, Polyplacophora, and Scaphopoda, focusing on the cellular architecture and distribution of neurotransmitters in the brain. Expand
Ciliary receptors associated with the mouth and pharynx of Acoela (Acoelomorpha): a comparative ultrastructural study
TLDR
The lack of a common receptor type specific for the mouth and pharynx of the investigated species points to an independent origin of the pharynges in Hofsteniidae and in Proporidae and of the mouth tube in Convolutidae. Expand
New species of the genus Isorropodon (Bivalvia: Vesicomyidae: Pliocardiinae) from cold methane seeps at Nyegga (Norwegian Sea, Vøring Plateau, Storrega Slide)
TLDR
A new species of vesicomyid bivalve is described based on shell morphology, from the Nyegga cold methane seep area on the Norwegian continental margin, the northernmost record of recent representatives of the family Vesicomyidae. Expand
The fauna of hydrothermal vents on the Mohn Ridge (North Atlantic)
TLDR
Calcareous sponges comprised an unusually high portion of the sponge species found and they constitute one of the first pioneers among the sessile invertebrates settling on these vents. Expand
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