Results 41 to 50 of about 205,581 (146)

Totoralia, a new conical-shaped mollusk from the Middle Cambrian of western Argentina [PDF]

open access: yes, 2011
The new genus Totoralia from the Late Middle Cambrian of El Totoral (Mendoza Province, western Argentina) is described herein. It is a delicate, high, bilaterally symmetrical cone with a sub-central apex and five to seven prominent comarginal ...
Sabattini, N.M., Tortello, M.F.
core   +5 more sources

Distribution, habitat preferences and behaviour of the critically endangered Maltese top-shell Gibbula nivosa (Gastropoda: Trochidae) [PDF]

open access: yes, 2010
The Maltese top-shell, Gibbula nivosa Adams 1851, is a critically endangered marine trochid gastropod endemic to the Maltese Islands (central Mediterranean).
Borg, Joseph A.   +2 more
core   +1 more source

Modern insights on gastropod development: Reevaluation of the evolution of a novel body plan.

open access: yesIntegrative and Comparative Biology, 2006
More than a century of speculation about the evolutionary origin of the contorted gastropod body plan has been inspired by adult anatomy and by long-standing developmental observations.
L. Page
semanticscholar   +1 more source

Left-right asymmetric expression of dpp in the mantle of gastropods correlates with asymmetric shell coiling [PDF]

open access: yes, 2018
This is the final version of the article. Available from BMC via the DOI in this record.BACKGROUND: Various shapes of gastropod shells have evolved ever since the Cambrian.
Asami, T   +7 more
core   +5 more sources

UEG Week 2023 Poster Presentations

open access: yes, 2023
United European Gastroenterology Journal, Volume 11, Issue S8, Page 535-1498, October 2023.
wiley   +1 more source

Gangliogenesis in the Prosobranch Gastropod Ilyanassa obsoleta [PDF]

open access: yes, 1996
We determined that the larval nervous system of Ilyanassa obsoleta contains paired cerebral, pleural, pedal, buccal, and intestinal ganglia and unpaired apical, osphradial, and visceral ganglia.
Leise, Esther M.   +1 more
core   +1 more source

Macrofaunal contributions to benthic nutrient fluxes revealed by radium disequilibrium

open access: yesLimnology and Oceanography, Volume 70, Issue 5, Page 1345-1358, May 2025.
Abstract The benthic flux of nutrients underpins marine food webs, influences conditions for life in the oceans, and contributes to climatic feedback. Estimates of these fluxes' contributions to macro‐ and micronutrient cycles are, however, highly variable, generating significant uncertainty in biogeochemical models.
Isabelle J. Cooper   +2 more
wiley   +1 more source

The Development of Haliotis tuberculata, with Special Reference to Organogenesis during Torsion

open access: yes, 1937
Investigation of the development of Haliotis tuberculata , Linnaeus, was undertaken as a natural sequel to an examination of the bionomics and anatomy of Haliotis (Crofts 1929, p. 159).
Doris R. Crofts
semanticscholar   +1 more source

Smithian–Spathian carbonate geochemistry in the northern Thaynes Group influenced by multiple styles of diagenesis

open access: yesThe Depositional Record, Volume 11, Issue 2, Page 616-636, April 2025.
While the Smithian–Spathian boundary carbon isotopic excursion has been traditionally interpreted as capturing global carbon cycle behaviour, recent studies have suggested that at least some Early Triassic carbon isotopic excursions may incorporate influences from authigenic or early diagenetic processes.
Jordan P. Todes   +6 more
wiley   +1 more source

Gastropod classification and taxonomy [PDF]

open access: yes, 2015
Gastropods are a large and highly diversified class within the phylum Mollusca. Many gastropods possess a shell whereas some are without shells. The shelled gastropods are also called univalves.
Mohamed, K S, Venkatesan, V
core  

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