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Composition Systematics in the Exoskeleton of the American Lobster, Homarus americanus and Implications for Malacostraca
Studies of biominerals from the exoskeletons of lobsters and other crustaceans report chemical heterogeneities across disparate body parts that have prevented the development of composition-based environmental proxy models. ...
Spiculogenesis and biomineralization in early sponge animals
(Springer Nature, 2019-07-26)
Most sponges have biomineralized spicules. Molecular clocks indicate sponge classes diverged in the Cryogenian, but the oldest spicules are Cambrian in age. Therefore, sponges either evolved spiculogenesis long after their ...