Extreme abundance of ammonoids in mass accumulations from the Late Devonian of the Moroccan Anti-Atlas [PDF]
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]
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]
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]
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
Triassic coleoid beaks and other structures from the Calcareous Alps revisited [PDF]
We performed comprehensive study of seven Carnian, Late Triassic specimens of a coleoid cephalopod Phragmoteuthis bisinuata, on which Suess based his hypothesis on “beaks of P. bisinuata”. Using SEM/EDS, we found that “beaks of P.
LARISA A. DOGUZHAEVA +4 more
doaj +1 more source
A novel metabarcoding primer pair for environmental DNA analysis of Cephalopoda (Mollusca) targeting the nuclear 18S rRNA region [PDF]
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 ...
Daniëlle S. W. de Jonge +5 more
doaj +1 more source
Impact of Lidocaine on Pain-Related Grooming in Cuttlefish
Nociception is the neural process of encoding noxious stimuli and is typically accompanied by a reflex withdrawal response away from the potentially injurious stimulus.
Tzu-Hsin Kuo +3 more
doaj +1 more source
Non-destructive analysis of pathological belemnite rostra by micro-CT techniques [PDF]
Previously, palaeopathological features of fossil hardparts were often difficult to interpret because it was impossible to decipher their internal structure without destroying the specimens. We applied high-resolution computedtomo graphy (CT) to document
René Hoffmann +4 more
doaj +1 more source
Pseudogzheloceras—a new genus of Carboniferous nautilids (Cephalopoda) from Europe and North Africa
Analysis of morphology, stratigraphic and geographic distribution of the group of nautilid species, mainly from the Westphalian of Western Europe, and the Bashkirian and Moscovian of the Donets Basin (Eastern Ukraine) made it possible to establish a new ...
V. Dernov
doaj +1 more source
Biología y ecología del calamar Dosidicus gigas (Cephalopoda) en aguas chilenas: una revisión [PDF]
Indexación: Web of Science; Scielo.ABSTRACT. The jumbo squid Dosidicus gigas is the most abundant cephalopod species in the southeastern Pacific Ocean, which supports the biggest cephalopod fishery in the world.
Ibáñez, Christian M. +4 more
core +9 more sources

