Results 1 to 10 of about 3,912 (170)

Genomic Divergence of Sympatric Lineages Within Stichopus cf. horrens (Echinodermata: Stichopodidae): Insights on Reproductive Isolation Inferred From SNP Markers [PDF]

open access: yesEcology and Evolution
How reproductive barriers arise in early stages of divergence among broadcast spawning organisms that exist in sympatry remains poorly understood. Reproductively isolated lineages (Clade A and B) of Stichopus cf.
Kenneth M. Kim   +3 more
doaj   +2 more sources

Echinodermata

open access: yes
Abstract Echinodermata is a bilaterian phylum with a body plan that has diverged significantly from the common bilaterian plan. Echinoderms are pentaradially symmetrical and have a unique type of mesodermal skeleton that lies just under the integument.
Gündoğdu, Sedat   +3 more
exaly   +5 more sources

Echinoderm Lagerstätten from high-latitude Gondwana – filling the gap in the Ordovician diversification of the phylum [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
The phylum Echinodermata is a major component of marine ecosystems since the first appearance of echinoderms in the Cambrian. Like other metazoan phyla, echinoderms underwent two major evolutionary pulses in early Palaeozoic times: the Cambrian Explosion
Martina Nohejlová   +4 more
doaj   +1 more source

Struktur Komunitas Echinodermata pada Berbagai Tipe Habitat di Daerah Intertidal Pantai Lakeba, Kota Baubau Sulawesi Tenggara

open access: yesJurnal Kelautan Tropis, 2021
Echinoderms are one of organisms that inhabit intertidal areas which have important ecological roles in marine ecosystems, also have high economic values.
WD. Syarni Tala   +2 more
doaj   +1 more source

Supercritical Extraction Technology of Obtaining Polyunsaturated Acids from Starfish (Lysastrosoma anthosticta Fisher, 1922) [PDF]

open access: yesТехника и технология пищевых производств, 2021
Introduction. Starfish (Asteroidea) are marine echinoderms with more than 160 species. Starfish are a valuable source of protein and fats. The present research featured the chemical composition of starfish, which can be used as a commercial source of ...
Alexander M. Zakharenko   +3 more
doaj   +1 more source

Palaeoecology of tropical marine invertebrate assemblages from the Late Triassic of Misurina, Dolomites, Italy [PDF]

open access: yesActa Palaeontologica Polonica, 2021
Two marine invertebrate fossil assemblages from the Late Triassic Cassian Formation (Dolomites, northern Italy) were examined to assess their diversity and palaeoecology.
Imelda M. Hausmann   +3 more
doaj   +1 more source

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

Phylotranscriptomic analysis uncovers a wealth of tissue inhibitor of metalloproteinases variants in echinoderms [PDF]

open access: yesRoyal Society Open Science, 2015
Tissue inhibitors of metalloproteinases (TIMPs) help regulate the extracellular matrix (ECM) in animals, mostly by inhibiting matrix metalloproteinases (MMPs). They are important activators of mutable collagenous tissue (MCT), which have been extensively
Ronald M. Clouse   +4 more
doaj   +1 more source

First report of the mitrate Mitrocystella (Echinodermata, Stylophora) in the Middle Ordovician of the Crozon Peninsula, Brittany (France) [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
The mid-Ordovician mitrocystitid mitrate Mitrocystella incipiens was one of the most widespread stylophorans in the high latitude Mediterranean Province, with occurrences in the Armorican Massif (France), the Iberian Peninsula (Portugal and Spain) and ...
Maxime Renaud   +6 more
doaj   +1 more source

Solutan echinoderms from the Lower Ordovician of the Montagne Noire (France): new data and palaeobiogeographic implications [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
Solutans are relatively common members of echinoderm assemblages in the Saint-Chinian Formation (upper Tremadocian) of the Montagne Noire (France). The revision of all available material confirms that most specimens can be assigned to Minervaecystis ...
Christophe Dupichaud   +2 more
doaj   +1 more source

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