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    Wyświetlanie 1-5 z 5
    Tytuł:
    Mollusks and a crustacean from early Oligocene methane-seep deposits in the Talara Basin, northern Peru
    Autorzy:
    Kield, S.
    Hybertsen, F.
    Hyzny, M.
    Klompmaker, A.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082106.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Gastropoda
    Bivalvia
    Crustacea
    Decapoda
    biogeography
    cold-seep
    Paleogene
    South America
    Opis:
    A total of 25 species of mollusks and crustaceans are reported from Oligocene seep deposits in the Talara Basin in northern Peru. Among these, 12 are identified to the species-level, including one new genus, six new species, and three new combinations. Pseudophopsis is introduced for medium-sized, elongate-oval kalenterid bivalves with a strong hinge plate and largely reduced hinge teeth, rough surface sculpture and lacking a pallial sinus. The new species include two bivalves, three gastropods, and one decapod crustacean: the protobranch bivalve Neilo altamirano and the vesicomyid bivalve Pleurophopsis talarensis; among the gastropods, the pyropeltid Pyropelta seca, the provannid Provanna pelada, and the hokkaidoconchid Ascheria salina; the new crustacean is the callianassid Eucalliax capsulasetaea. New combinations include the bivalves Conchocele tessaria, Lucinoma zapotalensis, and Pseudophopsis peruviana. Two species are shared with late Eocene to Oligocene seep faunas in Washington state, USA: Provanna antiqua and Colus sekiuensis; the Talara Basin fauna shares only genera, but no species with Oligocene seep fauna in other regions. Further noteworthy aspects of the molluscan fauna include the remarkable diversity of four limpet species, the oldest record of the cocculinid Coccopigya, and the youngest record of the largely seep-restricted genus Ascheria. Eucalliax is recorded for the first time from a seep and from the Oligocene.
    Źródło:
    Acta Palaeontologica Polonica; 2020, 65, 1; 109-138
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Paleobiology of the crustacean trace fossil Spongeliomorpha iberica in the Miocene of southeastern Spain
    Autorzy:
    Gibert,de, J.M.
    Ekdale, A.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/20840.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    paleobiology
    crustacean
    trace fossil
    Spongeliomorpha iberica
    Arthropoda
    Crustacea
    Decapoda
    Spongeliomorpha
    ichnology
    bioglyph
    Miocene
    Spain
    Opis:
    The trace fossil Spongeliomorpha iberica locally occurs in the Tortonian (Upper Miocene) marine strata of the Fortuna basin in southeastern Spain, and its excellent preservation state allows a reliable reconstruction of its main morphologic features. The burrow systems are branched (but not anastomosing), and they include numerous, short, blind tunnels. The burrow walls are strongly ornamented with bioglyphs displaying a rhomboidal pattern, consisting mostly of individual “Y”−shaped scratches. Smaller, secondary bioglyphs consist of sets of less incised transverse scratches. These features allow us to assign the ichnospecies to a decapod crustacean, most likely an alpheid or thalassinidean shrimp. The burrow apparently served as a refuge for the inhabitant, which fed upon microorganisms growing on the walls of the burrow by means of scraping the interior surfaces with the maxillipeds or other mouth parts. It is also likely that the shrimp used the multiple blind tunnels to store organic material (probably plant detritus) to be used for later consumption. The crustaceans colonized mud firmgrounds, which were formed by erosion during a rapid sea−level fall. Thus, the burrows occur in direct association with erosional regressive surfaces and therefore are good stratigraphic indicators of abrupt paleoenvironmental change.
    Źródło:
    Acta Palaeontologica Polonica; 2010, 55, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Late Cretaceous crest-bearing shrimps from the Sahel Alma Lagerstatte of Lebanon
    Autorzy:
    Audo, D.
    Charbonnier, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/20885.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Late Cretaceous
    crest-bearing shrimp
    Arthropoda
    Crustacea
    Decapoda
    Lagerstatte
    Cretaceous
    Santonian
    Sahel Alma
    Lebanon
    Opis:
    Decapod crustaceans are the most diverse group of fossil invertebrates from the Upper Cretaceous Sahel Alma Lagerstätte (Lebanon, Middle East). They are mainly represented by abundant crest−bearing shrimps which were first described as Penaeus libanensis. We review this species applying the new systematic nomenclature and we propose a more complete description based on 54 unpublished specimens. This review leads to the erection of Palaeobenthesicymus gen. nov. and to the new combination Palaeobenthesicymus libanensis that is the oldest record of the family Benthesicymidae. A neotype is herein designated. Detailed comparisons with extant analogues suggest that the crest bearing shrimps inhabited relatively deep water settings most probably exceeding 150 m, at the transition between the lower circalittoral and the upper bathyal zones, under dysphotic or aphotic conditions.
    Źródło:
    Acta Palaeontologica Polonica; 2013, 58, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Feeding ecology of the American crab Rhithropanopeus harrisii (Crustacea, Decapoda) in the coastal waters of the Baltic Sea
    Autorzy:
    Hegele-Drywa, J.
    Normant, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/47763.pdf
    Data publikacji:
    2009
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    Rhithropanopeus harrisii
    stomach content
    Baltic Sea
    Crustacea
    brackish water
    coastal water
    non-native species
    Decapoda
    feeding ecology
    American crab
    Opis:
    The feeding ecology of the American crab Rhithropanopeus harrisii Gould, 1841 from brackish waters of the Baltic Sea was studied by analyses of the stomach repletion index (SRI) and stomach content with regard to sex, size and habitat (Dead Vistula River and the Gulf of Gdańsk). Neither the sex nor the size of an individual crab had a significant (P>0.05) influence on the SRI or on the diversity of food items found in the stomachs of R. harrisii. But the type of food consumed was significantly (P<0.05) dependent on the locality inhabited: the greater the biodiversity of the habitat, the richer the dietary composition. In Baltic coastal waters this species feeds on detritus, and also on animal and plant matter. Remains of Chlorophyta, Amphipoda, Ostracoda, Polychaeta, Gastropoda and Bivalvia were found in the stomachs of the specimens analysed.
    Źródło:
    Oceanologia; 2009, 51, 3; 361-375
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    What is the diet of Palaemon elegans Rathke, 1837 (Crustacea, Decapoda), a non-indigenous species in the Gulf of Gdańsk (Southern Baltic Sea)?
    Autorzy:
    Janas, U.
    Baranska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/49052.pdf
    Data publikacji:
    2008
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    alga
    Ostracoda
    plant component
    Baltic Sea
    Crustacea
    Gammarus
    diet
    macrozoobenthos
    Decapoda
    prawn
    Ectocarpaceae
    coastal zone
    Palaemon elegans
    non-indigenous species
    dietary component
    Cladophora
    feeding
    Gdansk Gulf
    Harpacticoida
    Chironomidae
    animal component
    Opis:
    Palaemon elegans, a new component of the Gulf of Gdańsk macrozoobenthos, colonised the southern Baltic coastal zone in the late 20th and early 21st century. Analysis of the stomach contents of P. elegans revealed 16 plant and animal taxa that these prawns had fed on. The principal dietary component was detritus, with a mean frequency of occurrence in stomachs of > 80%. The most frequently occurring plant components in the diet were algae from the genus Cladophora and the family Ectocarpaceae, while the most significant animal components were Harpacticoida, Chironomidae, Ostracoda and Gammarus spp. The results of the study show that the dietary composition of P. elegans differed significantly between stations and months. The foraging area consisted of two distinctive regions – the Inner Puck Bay, and the Outer Puck Bay together with the Dead Vistula River; two of the stations – Gdynia and Sopot – were distinct from all the others. However, no obvious seasonality in the food composition could be demonstrated.
    Źródło:
    Oceanologia; 2008, 50, 2; 221-237
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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