Results 11 to 20 of about 6,700 (222)

The Biodiversity of Peter I Island-The Most Remote Island in the World. [PDF]

open access: yesEcol Evol
Peter I Island is one of the most isolated and least visited islands on earth; lying within the Antarctic Polar Front but over 420 km from continental Antarctica. Here we assess the biodiversity of the island from both previous records and our own BioBlitz in January 2022.
Jackson M   +10 more
europepmc   +2 more sources

An Increase in Animal Diversity was Facilitated by Ecologically-Driven Brain Complexity Throughout the Cambrian. [PDF]

open access: yesBioessays
The Brain‐First Hypothesis suggests that the Cambrian transition from animals with simple body plans and simple brains to more complex animals was driven by a selection for brains with increased neural processing, following increased ecological complexity, and the networks underlying brain development were co‐opted to pattern other complex systems ...
Chipman AD.
europepmc   +2 more sources

Exceptionally Preserved Setae: A Possible Morphological Synapomorphy of Cambrian Lophotrochozoans. [PDF]

open access: yesEvol Dev
The Lophotrochozoans comprise one of the major groups within the animal kingdom, while the relationships within this group remain unclear. We explored the microstructure and formation of setae and suggest that setae may represent a morphological synapomorphy of lophotrochozoans, which is currently dearth of morpho‐ultrastructure and comparative studies
Liang Y   +5 more
europepmc   +2 more sources

Comparative Multi-Marker Environmental DNA Metabarcoding of Marine Metazoan Communities: Water vs. Sediment. [PDF]

open access: yesMol Ecol Resour
ABSTRACT This study investigates the metazoan biodiversity in the Southern Adriatic Sea using environmental DNA (eDNA) metabarcoding. Sediment and adjacent water samples were collected from three sites (one pristine, two impacted by human activities) at three distances from the coast across two seasons.
Tagliabue A   +8 more
europepmc   +2 more sources

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]

open access: yesJ Eukaryot Microbiol
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

Komunitas Bivalvia yang Berasosiasi dengan Kerang Lentera (Brachiopoda: Lingulata) di Zona Intertidal Selat Madura

open access: yesJurnal Riset Biologi dan Aplikasinya, 2020
Kerang lentera merupakan salah satu makrobentos penyusun ekosistem intertidal berlumpur. Penelitian ini bertujuan untuk mendeskripsikan komunitas bivalvia yang yang berasosiasi dengan kerang lentera di zona intertidal Selat Madura.
Rakmawati Rakmawati, Reni Ambarwati
doaj   +1 more source

EARLY PERMIAN BRACHIOPODA AND MOLLUSCA FROM THE NORTHWEST HIMALAYA, INDIA

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2017
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
doaj   +1 more source

DNA sequence evidence for speciation, paraphyly and a Mesozoic dispersal of cancellothyridid articulate brachiopods [PDF]

open access: yes, 2002
Because the classification of extant and fossil articulate brachiopods is based largely upon shell characters observable in fossils, it identifies morphotaxa whose biological status can, in practice, best be inferred from estimates of genetic divergence.
Cohen, B.L., Luter, C.
core   +1 more source

Complete mitochondrial genome of Bugula neritina (Bryozoa, Gymnolaemata, Cheilostomata): phylogenetic position of Bryozoa and phylogeny of lophophorates within the Lophotrochozoa

open access: yesBMC Genomics, 2009
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
doaj   +1 more source

The eoorthid brachiopod Apheoorthina in the Lower Ordovician of NW Argentina and the dispersal pathways along western Gondwana [PDF]

open access: yes, 2016
The eoorthid brachiopod Apheoorthina is reported for the first time from the Lower Ordovician of NW Argentina. It is represented by a species similar to A.
Benedetto, Juan Luis Arnaldo   +1 more
core   +2 more sources

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