Results 21 to 30 of about 3,109 (199)
Morphology and Molecular Phylogeny of Endosymbiotic Ciliates (Peritrichia, Mobilida) of Marine Invertebrates with Descriptions of Two Novel Species Urceolaria clepsydra n. sp. and Urceolaria bratalia n. sp. [PDF]
ABSTRACT Mobilid ciliates are a morphologically distinct group of protists that form a wide range of symbiotic relationships with aquatic animals and includes three subgroups: Trichodinidae, Urceolariidae, and Polycyclidae. Trichodinids are best known for infecting fishes, whereas urceolariids infect diverse marine invertebrates.
Martinez G, Leander BS, Park E.
europepmc +2 more sources
Brachiopods exhibit a particular preference for cryptic habitats such as submarine caves. However, their assemblages have rarely been investigated quantitatively in this habitat.
M. A. Bitner, V. Gerovasileiou
doaj +1 more source
The organization and development of the nervous system are traditionally used for phylogenetic analysis and may be useful for clarification of evolution and phylogeny of some poor studied groups.
E. Temereva
semanticscholar +1 more source
EARLY PERMIAN BRACHIOPODA AND MOLLUSCA FROM THE NORTHWEST HIMALAYA, INDIA
The present paper describes and illustrates the Early Permian marine fauna collected from the northwest Himalaya (Lahul, India). Brachiopoda dominate the fauna in terms of abundance and include the two new species Tivertonia chumikensis and Neochonetes ...
NEIL W. ARCHBOLD, MAURIZIO GAETANI
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Molluscan Shells, Spicules, and Gladii Are Evolutionarily Deeply Conserved. [PDF]
Evolutionarily conserved transcription factor encoding genes and other genes are expressed in the epithelia that give rise to spicules (green) and/or shells (blue) in developmental stages of diverse mollusks, including polyplacophorans, aplacophorans, scaphopods, and cephalopods.
Barrera Grijalba CC +6 more
europepmc +2 more sources
Background The phylogenetic position of Bryozoa is one of the most controversial issues in metazoan phylogeny. In an attempt to address this issue, the first bryozoan mitochondrial genome from Flustrellidra hispida (Gymnolaemata, Ctenostomata) was ...
Jang Kuem, Hwang Ui
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The material of Thecidellina maxilla (Hedley, 1899) from the type locality has only been illustrated as line drawings, no images have previously been published.
Jeffrey H. Robinson
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New parasitic organisms in a productid brachiopod Eomarginifera lobata from the lower Carboniferous of the Moscow Basin, Russia [PDF]
Bioclaustrations are among the best ways that parasitic associations are preserved. A new bioclaustration, Haplorygma productidophilia csp. nov., is here described from the ventral interior of the Carboniferous productid brachiopod Eomarginifera lobata ...
Olev Vinn +2 more
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The evolution of asymmetry in Upper Cretaceous Cyclothyris (Brachiopoda, Rhynchonellida)
The study of Upper Cretaceous Cyclothyris from Spain and the revision of asymmetrical rhynchonellides from numerous European collections have led to improve some systematical, biostratigraphical and palaeobiogeographical questions, allowing to update ...
M. Berrocal-Casero +2 more
semanticscholar +1 more source
X-ray tomographic microscopy tightens affinity of the early Cambrian Oymurania to the brachiopod stem group [PDF]
The geologically rapid biotic evolution in the early Cambrian is marked by the first appearance of major groups of animals in the fossil record (e.g., Budd and Jensen 2000; Kouchinsky et al. 2012).
Artem Kouchinsky, Stefan Bengtson
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