Evolution: Herbivore-Type Teeth in a Cretaceous Tuatara Relative
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چکیده
منابع مشابه
Titanosauriform teeth from the Cretaceous of Japan.
Sauropod teeth from six localities in Japan were reexamined. Basal titanosauriforms were present in Japan during the Early Cretaceous before Aptian, and there is the possibility that the Brachiosauridae may have been included. Basal titanosauriforms with peg-like teeth were present during the "mid" Cretaceous, while the Titanosauria with peg-like teeth was present during the middle of Late Cret...
متن کاملTuatara
Figure 1. Young adult tuatara from North Brother Island with a regenerating tail (Photo by Alison Cree). What is a tuatara? The tuatara is a modern reptile found only in New Zealand (Figure 1). Although it superficially looks like a mediumsized lizard it is in fact the only living member of the Rhynchocephalia, a group of animals that were successful, globally distributed, and ecologically dive...
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Numerous insects have independently evolved the ability to feed on plants that produce toxic secondary compounds called cardenolides and can sequester these compounds for use in their defense. We surveyed the protein target for cardenolides, the alpha subunit of the sodium pump, Na(+),K(+)-ATPase (ATPα), in 14 species that feed on cardenolide-producing plants and 15 outgroups spanning three ins...
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Studying the evolution and biogeographic distribution of dinosaurs during the latest Cretaceous is critical for better understanding the end-Cretaceous extinction event that killed off all non-avian dinosaurs. Western North America contains among the best records of Late Cretaceous terrestrial vertebrates in the world, but is biased against small-bodied dinosaurs. Isolated teeth are the primary...
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In this paper we wish to establish the integral representations of generalized relative type and generalized relative weak type as introduced by Datta et al [9]. We also investigate their equivalence relation under some certain conditions.
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ژورنال
عنوان ژورنال: Current Biology
سال: 2020
ISSN: 0960-9822
DOI: 10.1016/j.cub.2020.02.041