Results 11 to 20 of about 4,674 (220)

Cephalopoda

open access: yes, 2018
Published as part of Groves, Lindsey T. & Squires, Richard L., 2018, Annotated Catalog of the Fossil Invertebrates Described by, and Named for, William More Gabb (1839 - 1878), pp.
Groves, Lindsey T., Squires, Richard L.
openaire   +3 more sources

Fatty Acids and Stomach Contents Reveal Dietary Overlaps of Two Prospering Squid Species in the North Sea. [PDF]

open access: yesEcol Evol
Distribution ranges of cephalopods are expanding worldwide and their abundances are increasing due to ocean warming. Recently, the broadtail shortfin squid Illex coindetii (Ommastrephidae) expanded into the North Sea where it established a successful spawning stock beside the resident veined squid Loligo forbesii (Loliginidae). Stomach content analysis
Rittinghaus H   +4 more
europepmc   +2 more sources

Mapping molluscan endocrinology: a systematic and critical appraisal. [PDF]

open access: yesBiol Rev Camb Philos Soc
ABSTRACT Historically, a vertebrate‐centric paradigm has framed our interpretation of molluscan endocrinology, with considerable research focusing on vertebrate‐type steroid hormones (e.g. oestrogens, testosterone). However, contradictory evidence on the occurrence of vertebrate‐type steroid hormones in molluscan tissues, and a lack of the specific ...
Panagiotidis K   +3 more
europepmc   +2 more sources

Non-destructive analysis of pathological belemnite rostra by micro-CT techniques [PDF]

open access: yesActa Palaeontologica Polonica, 2020
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

open access: yesGeo&Bio, 2021
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

Spatial and Temporal Characteristics of Demersal Assemblages in Sığacık Bay, Central Aegean Sea, Turkey

open access: yesÇanakkale Onsekiz Mart University Journal of Marine Sciences and Fisheries, 2021
This study aimed to determine the spatial and temporal variation of species diversity and CPUE in trawl fisheries in the Central Aegean Sea (Sığacık Bay). The study also aimed to evaluate changes in some biometric parameters (mean and frequency of length)
Hakkı DERELİ
doaj   +1 more source

Conellae, enigmatic structures on cephalopod shells—shapes, distribution, and formation [PDF]

open access: yesActa Palaeontologica Polonica, 2019
Conellae, enigmatic cone-shaped structures which can be found on the surface of internal moulds of cephalopod shells (predominantly of ammonoids), are regarded herein as the product of remote (biologically induced) biomineralization formed in closed-off ...
René Hoffmann   +2 more
doaj   +1 more source

GSL-Echinoidea-Holothuroidea-Cephalopoda

open access: yes, 2022
A mini-poster of the principal echinoids, holothuroids, and cephalopods stars that may be expected on biodiversity surveys in Gulf of St. Lawrence (GSL).
Claude Nozeres (101073)
core   +1 more source

Palaeobiology and evolutionary context of Angulithes mermeti, a streamlined early Late Cretaceous shallow-water nautiloid [PDF]

open access: yesActa Palaeontologica Polonica, 2019
Cretaceous nautiloids are commonly characterized by inflated shells and prolonged stratigraphic ranges. In the Albian, the species of Angulithes appeared and compressed, short-lived forms with narrow venters emerged during the Cenomanian age.
Markus Wilmsen , Emad Nagm
doaj   +1 more source

New insights into the morphology, reproduction and distribution of the large-tuberculate octopus Graneledone macrotyla from the Patagonian slope

open access: yesScientia Marina, 2012
The new information reported in this paper is based on 11 specimens of the large-tuberculate octopus Graneledone macrotyla. These specimens were caught in bottom trawl surveys ATLANTIS 2009 and 2010 carried out on the Patagonian slope off the Argentinean
Ángel Guerra   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy