Results 41 to 50 of about 287 (128)

Boring systematics: A genome skimmed phylogeny of ctenostome bryozoans and their endolithic family Penetrantiidae with the description of one new species

open access: yesEcology and Evolution, Volume 14, Issue 4, April 2024.
Better resolving ctenostome bryozoan systematics is crucial in understanding bryozoan evolution in general. Ctenostomes are a paraphyletic group of soft bodied bryozoans with a wide ecological diversity, including endolithic (boring) forms like Penetrantia.
Sebastian H. Decker   +10 more
wiley   +1 more source

Systematics and character evolution of capitate hydrozoans

open access: yesCladistics, Volume 40, Issue 2, Page 107-134, April 2024.
Abstract Capitate hydrozoans are a morphologically and ecologically diverse hydrozoan suborder, currently including about 200 species. Being grouped in two clades, Corynida and Zancleida, these hydrozoans still show a number of taxonomic uncertainties at the species, genus and family levels.
Davide Maggioni   +11 more
wiley   +1 more source

Let's talk about sex: Mechanisms of neural sexual differentiation in Bilateria

open access: yesWIREs Mechanisms of Disease, Volume 16, Issue 2, March/April 2024.
In many animals, sex differentiation of neural circuits involves two axes: Along the first axis, particular classes of neurons are specified to produce a sex‐sensitive factor; this specification event is sex‐neutral. Along the second axis, sex information is imposed on this sex‐sensitive factor, either through hormonal or cell‐autonomous mechanisms ...
Emma C. Roggenbuck   +20 more
wiley   +1 more source

Erratum: An early Cambrian agglutinated tubular lophophorate with brachiopod characters [PDF]

open access: yesScientific Reports, 2014
The morphological disparity of lophotrochozoan phyla makes it difficult to predict the morphology of the last common ancestor. Only fossils of stem groups can help discover the morphological transitions that occurred along the roots of these phyla. Here, we describe a tubular fossil Yuganotheca elegans gen. et sp. nov.
Zhang, Z.-F.   +14 more
openaire   +1 more source

Paradox lost: wide gape in the Ordovician brachiopod Rafinesquina explains how unattached filter‐feeding strophomenoids thrived on muddy substrates

open access: yesPalaeontology, Volume 67, Issue 2, March/April 2024.
Abstract Strophomenoid brachiopods had thin, concavo‐convex shells, were ubiquitous colonizers of Palaeozoic muddy seafloors, and are hypothesized to have filter‐fed in a concave‐upward orientation. This orientation would elevate their line of commissure out of potentially lethal lophophore‐clogging mud.
Benjamin F. Dattilo   +7 more
wiley   +1 more source

Morphology of ctenostome bryozoans: 7. Hislopia, Echinella and Timwoodiellina

open access: yesJournal of Morphology, Volume 285, Issue 2, February 2024.
Schematic drawings of hislopiids ctenostomes showing major polypide features. Abstract Ctenostome bryozoans are a small group of gymnolaemates comprising less than 400 recent species. They are paraphyletic and ctenostome‐grade ancestors gave rise to Cheilostomata, the most dominant and speciose taxon of Bryozoa in the present day.
Thomas Schwaha   +2 more
wiley   +1 more source

Homology of the lophophore and its evolution within lophophorates

open access: yesInvertebrate Zoology, 2022
E. N. Temereva, T. V. Kuzmina
openaire   +1 more source

Larvae, Lophophores and Chimeras in Classification

open access: yesCell & Developmental Biology, 2013
I challenge the widely held assumption, reflected in current classifications, that larvae and corresponding adults evolved from common ancestors and that animals with lophophores evolved from an ancestral lophophorate. Types of animal development are defined, and their origins are discussed in relation to the common ancestor hypothesis and ...
openaire   +1 more source

Response : Lophophorate Phylogeny [PDF]

open access: yesScience, 1996
K M, Halanych   +5 more
openaire   +2 more sources

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