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Early Cambrian Ostracode Larvae with a Univalved Carapace
Science, 1993Phosphatized univalves, recovered from the Lower Cambrian (∼530 million years old) Qiongzhusi Formation in southern China, are recognized as early instars belonging to bradoriid ostracodes whose later instars are bivalved. The univalved form is the primitive larval character for shell-secreting crustaceans, although most post-Cambrian ostracodes ...
X G, Zhang, B R, Pratt
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A Gauge for Carapace Measurements of Crabs
Journal of the Fisheries Research Board of Canada, 1970A newly developed gauge for measuring carapace widths of crabs is described. Tests showed that it was accurate to ± 0.5 mm, and its broad jaws enabled maximum carapace width to be measured more consistently than with vernier calipers. In addition, it was noncorrodible and faster and easier to use than calipers.
J. Watson, P. G. Wells
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The carapace of the branchiopod Crustacea
Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 1996Not withstanding suggestions to the contrary, the branchiopod carapace primitively originates as a fold that arises at the posterior margin of the head. This is generally from the maxillary segment but this region has sometimes been so modified during the radiation of the group that it is not always possible to be so precise. Fusion of any
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Shape matters: relevance of carapace for brachyuran crab invaders
Biological Invasions, 2020Marc Farré +3 more
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Development of cell arrangement in ostracod carapaces
Paleobiology, 1981The correlation between epidermal cells and cuticular reticulation was clearly shown by transmission and scanning electron microscopes with larval ostracods just before ecdysis. Comparison of the reticulation patterns of Recent and Pleistocene specimens revealed that the epidermal cell arrangement of the adult ostracods is both consistent in the Recent
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Carapace Sculpture in Amphissites (Kirkbyacea: Ostracoda)
1988A constant pattern of polygonal reticulation and pore distribution has been demonstrated in specimens of Amphissites centronotus (Ulrich and Bassler, 1906) from the Upper Pennsylvanian of Texas, and two allied species from the Lower Carboniferous (Visean) of the Bonaparte Basin, northwestern Australia.
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Highly efficient extraction of uranium from seawater by natural marine crab carapace
Chemical Engineering Journal, 2022Ning Wang
exaly