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Sexual dimorphism in a freshwater atyid shrimp (Decapoda: Caridea) with direct development: A geometric morphometrics approach
(Magnolia Press, 2016-11)
Neocaridina davidi is a caridean shrimp that has gained popularity in recent years as an ornamental species. Using geometric morphometrics, we investigated sexual dimorphism in carapace and second abdominal segment shape ...
Crab carapace shape as a biomarker of salt marsh metals pollution
(Pergamon-Elsevier Science Ltd, 2021-08)
Coastal environmental pollution is a global problem that has been growing for decades. For this reason, different approaches have been sought to address and detect its environmental implications. Some organisms are considered ...
A New Species of Neoglyptatelus (Mammalia, Xenarthra, Cingulata) from the Late Miocene of Uruguay Provides New Insights on the Evolution of the Dorsal Armor in Cingulates
(Asociación Paleontológica Argentina, 2018-07)
The genus Neoglyptatelus Carlini, Vizcaíno and Scillato-Yané has been considered a member of Glyptatelinae, a group encompassing the purportedly basal-most glyptodonts. It is up to now represented by two species from ...
Carapace shape of some trichodactylidae crabs: Analysis by geometric tools as a possible way of including females in taxonomic differentiation
(Institut Catalá de Paleontologia, 2009-10)
The family Trichodactylidae characterizes the aquatic environments of the plain, being the Paraná River an important system in the continent. The taxonomic studies of this group were based on carapace ornamentation and ...
Chemical taphonomy and preservation modes of Jurassic spinicaudatans from Patagonia: A chemometric approach
(Cambridge University Press, 2018-11)
Spinicaudatans ('clam shrimps') are small branchiopod crustaceans enclosed in a chitinous bivalved carapace that is often the only preserved element in the fossil record. However, few studies have analyzed the preservation ...
Life on the Half-Shell: Consequences of a Carapace in the Evolution of Armadillos (Xenarthra: Cingulata)
(Springer, 2012-09)
Without doubt, the possession of an armored carapace represents one of the most conspicuous morphological features of all cingulates. Here, we review some of the many ways in which the carapace may have influenced the ...
Differential coloration patterns in the intertidal crab Neohelice (=Chasmagnathus) granulata
(Cambridge University Press, 2010-12)
Many crustaceans with spatial segregation may present differential body coloration depending on the habitat they inhabit. Since crustaceans are unable to synthesize carotenoids, individuals must acquire them from their ...
Comparative histology and ontogenetic change in the carapace of armadillos (Mammalia: Dasypodidae)
(Springer, 2015-12)
Among extant mammals, the presence of osteoderms is limited to armadillos (Xenarthra, Dasypodidae), being one of its distinctive features. The osteoderms are articulated to form a carapace that covers their body dorsally. ...
Clinal variation in carapace shape in the South American freshwater crab, Aegla uruguayana (Anomura: Aeglidae)
(Oxford University Press, 2014-11)
South America has been influenced by different geoclimatic events ever since its separation from Africa. The inland water fauna has evolved in response to the changing landscape. Currently, there are indications of variations ...
Combination of analytic techniques to chemical characterization and preservation of Jurassic clam shrimp carapaces from La Matilde formation, Patagonia
(Pergamon-Elsevier Science Ltd, 2021-08)
Chemical studies of fossil clam shrimps have taken relevance in the possibility of inferring about fossilization processes. Laser–induced Breakdown Spectroscopy (LIBS) is an attractive technique for geological analyses ...