Results 11 to 20 of about 5,211 (214)

A novel metabarcoding primer pair for environmental DNA analysis of Cephalopoda (Mollusca) targeting the nuclear 18S rRNA region [PDF]

open access: yesRoyal Society Open Science, 2021
Cephalopods are pivotal components of marine food webs, but biodiversity studies are hampered by challenges to sample these agile marine molluscs. Metabarcoding of environmental DNA (eDNA) is a potentially powerful technique to study oceanic cephalopod ...
, Danielle De Jonge, Henk-Jan T Hoving
exaly   +3 more sources

Cephalopoda [PDF]

open access: yesTransactions of the Geological Society of Glasgow, 1871
This last and highest class of the mollusca is represented by six genera and a considerable number of species. They range from the lower to the upper limestone series, but the greatest number and variety of Cephalopoda are met with in the upper beds.
J. Young
exaly   +7 more sources

DNA Barcoding Reveals High Hidden Species Diversity of Chinese Waters in the Cephalopoda

open access: yesFrontiers in Marine Science, 2022
Species delimitation by traditional morphological methods is challenging in cephalopods due to their flexible bodies, changeable pigment traits, and sometimes high morphological homoplasy. Molecular information provides important assistance for taxonomic
Ran Xu   +6 more
exaly   +2 more sources

Wear patterns of radular teeth in Loligo vulgaris (Cephalopoda; Mollusca) are related to their structure and mechanical properties. [PDF]

open access: yesInterface Focus
Radular teeth have to cope with wear, when interacting with ingesta. In some molluscan taxa, wear-coping mechanisms, related to the incorporation of high contents of iron or silica, have been previously determined.
Hackethal S   +3 more
europepmc   +2 more sources

The chromosomal genome sequence of the bigfin reef squid, Sepioteuthis lessoniana d'Orbigny, 1826 and its associated microbial metagenome sequences [version 1; peer review: 2 approved] [PDF]

open access: yesWellcome Open Research
We present a genome assembly from a specimen of Sepioteuthis lessoniana (bigfin reef squid; Mollusca; Cephalopoda; Myopsida; Loliginidae). The genome sequence has a total length of 5,056.23 megabases.
Spencer Nyholm   +15 more
doaj   +2 more sources

Host-Associated Biofilms: Vibrio fischeri and Other Symbiotic Bacteria Within the Vibrionaceae [PDF]

open access: yesMicroorganisms
Biofilm formation is important for microbial survival, adaptation, and persistence within mutualistic and pathogenic systems in the Vibironaceae. Biofilms offer protection against environmental stressors, immune responses, and antimicrobial treatments by
Joaquin Lucero, Michele K. Nishiguchi
doaj   +2 more sources

Extreme abundance of ammonoids in mass accumulations from the Late Devonian of the Moroccan Anti-Atlas [PDF]

open access: yesActa Palaeontologica Polonica, 2022
The eastern Anti-Atlas is renowned for its highly fossiliferous outcrops of Devonian rocks. Ammonoids occur in rock-forming numbers at many localities in the Tafilalt and Maïder.
MERLE GREIF   +2 more
doaj   +1 more source

Lamellorthoceratid cephalopods in the cold waters of southwestern Gondwana: Evidences from the Lower Devonian of Argentina [PDF]

open access: yesActa Palaeontologica Polonica, 2020
Based on three specimens assigned to Arthrophyllum sp., the family Lamellorthoceratidae is reported from the Lower Devonian Talacasto Formation in the Precordillera Basin, central western Argentina.
Marcela Cichowolski , Juan José Rustán
doaj   +1 more source

Variability of conch morphology in a cephalopod species from the Cambrian to Ordovician transition strata of Siberia [PDF]

open access: yesActa Palaeontologica Polonica, 2020
A block of stromatolitic limestone found on the Angara River shore near Kodinsk, Siberia, derived from the exposed nearby Ust-kut Formation, has yielded a sample of 146 ellesmeroceratid nautiloid specimens.
Jerzy Dzik
doaj   +1 more source

Early Tremadocian cephalopods from Santa Rosita Formation in NW Argentina: the oldest record for South America [PDF]

open access: yesActa Palaeontologica Polonica, 2023
We describe early Tremadocian (Kainella meridionalis Biozone) cephalopods from the Cordillera Oriental, Jujuy, NW Argentina. They consist of numerous small specimens collected at the Quebrada de Arenal, Trancas section, near the town of Tilcara, in the
MARCELA CICHOWOLSKI   +5 more
doaj   +1 more source

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