Results 1 to 10 of about 7,029 (163)

The complete mitochondrial genome of Asteroschema tubiferum (Ophiuroidea: Euryalida: Asteroschematidae) [PDF]

open access: yesMitochondrial DNA. Part B. Resources, 2022
We describe the first mitochondrial genome of a brittle star Asteroschema tubiferum Matsumoto 1911 in family Asteroschematidae. The mitogenome was sequenced and assembled using next-generation sequencing technology, and were 16,361 bp in size with 37 ...
Zhaoshan Zhong   +3 more
doaj   +2 more sources

Phylogenetic relationships and lineage-specific mitochondrial gene rearrangement in Ophiuroidea: insights from mitochondrial genomes

open access: yesFrontiers in Marine Science
Ophiuroids, the most diverse group of echinoderms, inhabit a vast array of ecological niches and play vital roles in benthic ecosystems as suspension feeders, scavengers and opportunists.
Yadong Zhou   +2 more
exaly   +3 more sources

New Brittle Stars (Echinodermata, Ophiuroidea) from the Oligocene of the Mainz Basin, Germany

open access: yesTaxonomy, 2022
The fossil record of the Ophiuroidea is still patchy, especially in the Cenozoic. Only four species have been described from the entire Oligocene, which is in stark contrast to the present-day diversity counting more than 2000 species.
Ben Thuy, Lea D Numberger-Thuy
exaly   +3 more sources

First Jurassic brittlestar from Neuquén Basin, Argentina [PDF]

open access: yesActa Palaeontologica Polonica, 2023
Articulated fossil ophiuroids from South America were reported for the Devonian, Cretaceous, Eocene, and Miocene. Here we report the first Jurassic record of an articulated ophiuroid from the Sierra Chacaicó Formation (early Pliensbachian– Sinemurian ...
DÉBORA M. CAMPETELLA   +6 more
doaj   +1 more source

An annotated catalogue of Echinodermata types in the Museu de Zoologia, Universidade de São Paulo, Brazil [PDF]

open access: yesPapéis Avulsos de Zoologia, 2022
The types of nominal species of Echinodermata in the collection of the Museu de Zoologia, Universidade de São Paulo are catalogued: Holothuroidea (19 species - 16 holotypes, 1 paratype and 2 neotypes) and Ophiuroidea (4 species - 1 neotype and 3 ...
Luciana Martins   +3 more
doaj   +1 more source

Determinación de la asociación de las especies (Ophiocomina nigra y Arbacia lixula), del Phylum Echinodermata, en función de variables físico-químicas en estratos rocosos del Refugio de Vida Silvestre, Rio Escalante-Chacocente

open access: yesLa Calera, 2022
El presente estudio se realizó en la zona intermareal en el Refugio de Vida Silvestre- Río Escalante Chacocente, municipio de Santa Teresa. Su objetivo principal es la determinación de la asociación de las especies Arbacia lixula y Ophiocomina nigra en ...
Luz Esmelda Reynoza Ruiz   +2 more
doaj   +1 more source

Comparative Reproductive Biology of Deep-Sea Ophiuroids Inhabiting Polymetallic-Nodule Fields in the Clarion-Clipperton Fracture Zone

open access: yesFrontiers in Marine Science, 2021
Deep-sea mining in the Pacific Clarion-Clipperton Fracture Zone (CCZ), a low-energy sedimentary habitat with polymetallic nodules, is expected to have considerable and long-lasting environmental impact.
Sven R. Laming   +3 more
doaj   +1 more source

Discovery of novel representatives of bilaterian neuropeptide families and reconstruction of neuropeptide precursor evolution in ophiuroid echinoderms [PDF]

open access: yesOpen Biology, 2017
Neuropeptides are a diverse class of intercellular signalling molecules that mediate neuronal regulation of many physiological and behavioural processes.
Meet Zandawala   +7 more
doaj   +1 more source

Echinodermata, Ophiomyxidae, Ophioscolex glacialis Müller and Troschel, 1842: first record of the species for the South Atlantic [PDF]

open access: yesCheck List, 2011
Ophioscolex glacialis Müller and Troschel, 1840 (Ophiuroidea: Ophiomyxidae) was registered for first time off the Brazilian coast, from the Campos Basin of Rio de Janeiro, Brazil. The specimen was sampled during a environmental monitoring.
Cynthia Lara Manso   +2 more
doaj   +3 more sources

ROV's Video Recordings as a Tool to Estimate Variation in Megabenthic Epifauna Diversity and Community Composition in the Guaymas Basin [PDF]

open access: yes, 2020
Patterns in benthic megafauna diversity in littoral and intertidal zones in the Gulf of California have been associated with both habitat heterogeneity and substrate type.
Barry, James P.   +3 more
core   +1 more source

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