Results 91 to 100 of about 65,697 (317)

Notes on the Mollusca from Site 41DT59, Cooper Lake, Delta County, Texas [PDF]

open access: yes, 2000
This paper focuses on the information about the mollusca from site 41DT59. The author takes the information from Dr. Fullington, the noted malacologist, and illustrates how the archeologist can take the information and apply it to site analysis.
Todd, Jesse
core   +1 more source

A bristle‐nosed Jurassic ray‐finned fish (Actinopterygii) bears true dermal odontodes on its snout

open access: yesJournal of Anatomy, EarlyView.
Teeth show extreme diversity, including tooth‐like dermal odontodes or “skin teeth” in many extant fishes. We describe the anatomy of enlarged tubercles on the snout of Redfieldius, an extinct early Jurassic fish. We found that the tubercles in Redfieldius are dermal odontodes that evolved independently from those of living species. Abstract Comparison
Jack Stack   +2 more
wiley   +1 more source

Disjoint geographical distribution of intertidal and nearshore benthic invertebrates in the Southern Hemisphere Distribuciones geográficas disyuntas de invertebrados bentónicos intermareales y del submareal somero en el Hemisferio Sur

open access: yesRevista Chilena de Historia Natural, 2000
Biogeographical explanations for the extant and paleo disjoint geographical distribution in the southern hemisphere of five species of nearshore marine benthic invertebrates: Gaimardia trapesina, Ostrea chilensis, Pyura stolonifera taxonomic complex ...
JUAN C CASTILLA, RICARDO GUIÑEZ
doaj  

Diversity and Abundance of Mangrove Gastropods in Setiu Wetlands and Matang Mangrove Forest Reserve, Peninsular Malaysia

open access: yesIlmu Kelautan
Mangrove gastropods, a highly diverse group of mollusks, play a critical yet often overlooked role in mangrove ecosystems. This study investigates the distribution and abundance of mangrove gastropods in two study sites with distinct management regimes ...
Nursalwa Baharuddin   +1 more
doaj   +1 more source

Understanding marine biodiversity patterns and drivers: The fall of Icarus

open access: yesMarine Ecology, EarlyView.
Abstract Biodiversity patterns are fundamental in our understanding of the distribution of life, ecosystem function, and conservation. In this concept analysis, A survey of the existing knowledge on marine biodiversity patterns and drivers across latitudes, longitudes, and depths indicates that none of the postulated patterns represent a rule.
Roberto Danovaro
wiley   +1 more source

Moluscos terrestres de las elevaciones cársticas de Viñales, Pinar del Río, Cuba

open access: yesRevista de Biología Tropical, 2009
De acuerdo a los muestreos efectuados en localidades representativas de las elevaciones cársticas de Viñales (Cuba), la consulta de catálogos no automatizados de colecciones malacológicas y la revisión de la literatura, se dan a conocer 136 especies ...
Wilfredo Oliva-Olivera, Raimundo Real
doaj  

Confirmation of the impact origin of the Late Ordovician Tvären impact structure (southeast Sweden) and emplacement of impactites in a marine setting

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The Tvären structure in southeastern Sweden has been listed as a confirmed marine‐target impact structure for decades. However, to date, no measurements and/or indexed data of planar deformation features in quartz grains from the structure have been published or any other unequivocal evidence of impact.
Katarzyna J. Gajewska   +6 more
wiley   +1 more source

Gastropods and bivalves of commercial interest from the continental shelf of Jalisco and Colima, México

open access: yesRevista de Biología Tropical, 2001
The distribution and abundance with respect to depth and type of substratum of 20 species of gastropods and 4 species of bivalves of economic importance were examined in the continental shelf of Jalisco and Colima, México.
E. Ríos-Jara   +4 more
doaj  

Interannual variability of epibenthic communities in the Chukchi Sea, Alaska [PDF]

open access: yes, 2015
Thesis (M.S.) University of Alaska Fairbanks, 2015Epibenthic communities contain a wide range of organisms and serve an important role in marine ecosystems.
Powell, Kimberly Keeler
core  

Formation process of the gravel‐dominated deposit from the 2011 Tohoku‐oki tsunami in Ofunato, northeastern Japan, inferred by integrating sedimentology and tsunami modelling

open access: yesSedimentology, EarlyView.
ABSTRACT Tsunami deposits serve as geological records of past events and are essential for understanding the occurrence and dynamics of tsunamis. However, conventional research has largely focused on sandy and boulder deposits, leaving gravel‐dominated tsunami deposits comparatively underexplored; furthermore, their characteristics and formation ...
Hidetoshi Masuda   +5 more
wiley   +1 more source

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