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IEEE 802.22: The first cognitive radio wireless regional area network standard
This article presents a high-level overview of the IEEE 802.22 standard for cognitive wireless regional area networks (WRANs) that is under development in the IEEE LAN/MAN Standards Committee. Expand
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Squamate phylogeny and the relationships of snakes and mosasauroids
Abstract Cladistic analysis of extant and fossil squamates (95 characters, 26 taxa) finds the fossil squamate,Coniasaurus Owen, 1850, to be the sister-group of the Mosasauroidea (mosasaurs andExpand
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Abstract The marine squamate, Dolichosaurus longicollis, from the Upper Cretaceous (Cenomanian) Chalk deposits of southeast England is redescribed. The elongate neck of D. longicollis is produced byExpand
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An Overview of the ATSC 3.0 Physical Layer Specification
This paper provides an overview of the physical layer specification of Advanced Television Systems Committee (ATSC) 3.0, the next-generation digital terrestrial broadcasting standard that is positioned to become the reference terrestrial broadcasting technology worldwide due to its unprecedented performance and flexibility. Expand
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Anatomy and relationships of Pachyrhachis problematicus, a primitive snake with hindlimbs
The anatomy of Pachyrhachis problematicus , an elongate, limb–reduced squamate from the Upper Cretaceous of Israel, is described and evaluated in detail. Previously considered a snake–like ‘lizard’Expand
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Limb osteology and ossification patterns in Cryptoclidus (Reptilia: Plesiosauroidea) with a review of sauropterygian limbs
ABSTRACT Limb osteology and ontogenetic patterns of limb ossification are described for the plesiosaur Cryptoclidus eurymerus (Upper Jurassic: Callovian), and compared to those of otherExpand
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Ontogeny, anatomy and attachment of the dentition in mosasaurs (Mosasauridae: Squamata)
Aspects of mosasaur dental ontogeny are well preserved in many fossils of these giant marine squamates. Replacement teeth on the tooth-bearing elements (TBEs) first appear as small enamel crownsExpand
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A snake with legs from the marine Cretaceous of the Middle East
Although snakes are descended from limbed squamates ('lizards'), all known snakes lack well developed legs and their nearest lizard relatives have yet to be identified1–4. Here we provide compellingExpand
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Convergent Evolution in Aquatic Tetrapods: Insights from an Exceptional Fossil Mosasaur
Mosasaurs (family Mosasauridae) are a diverse group of secondarily aquatic lizards that radiated into marine environments during the Late Cretaceous (98–65 million years ago). For the most part, theyExpand
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A fishy mosasaur: the axial skeleton of Plotosaurus (Reptilia, Squamata) reassessed
The concept of convergence, that is, how unrelated animals independently evolve similar morphological traits, is a fundamental aspect of evolution. Hitherto, the Mesozoic ichthyosaurs were regardedExpand
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