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Systematics and taxonomy of soft-shelled turtles (Family Trionychidae) from the Judith River Group (mid-Campanian) of
Four valid species of trionychine trionychid turtles are recognized from the Upper Cretaceous (mid-Campanian; Judithian) Judith River Group, western North America. Cladistic analysis of extant andExpand
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Sunosuchus junggarensis sp.nov. (Archosauria: Crocodyliformes) from the Upper Jurassic of Xinjiang, People's Republic of China
A new species of Crocodyliformes, Sunosuchus junggarensis, is established on the basis of six individuals from the Upper Jurassic of the Junggar Basin, Xinjiang, northwest China. It differs fromExpand
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Configuration of the setal fields of Rhoptropus (Gekkota: Gekkonidae): functional, evolutionary, ecological and phylogenetic implications of observed pattern
Many gekkotans possess seta‐bearing adhesive subdigital pads. Details of setal structure, however, are largely based upon putatively exemplary fibrils deemed typical of the species. Little is knownExpand
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Cranial Morphology and Relationships of a New Grippidian (Ichthyopterygia) from the Vega-Phroso Siltstone Member (Lower Triassic) of British Columbia, Canada
ABSTRACT In 1989, TMP 89.127.3, a basal ichthyopterygian, was collected as a counterpart slab from the Vega-Phroso Siltstone Member (Lower Triassic) of the Sulphur Mountain Formation inExpand
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Optical sensor for the determination of moisture
Abstract Cobalt(II) chloride in gelatin is cast as films on the surface of 600-μm optical fibers. The absorption of these films at 680 nm is measured through the fiber by internal reflectionExpand
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The anatomy and development of the claws of Xenopus laevis (Lissamphibia: Anura) reveal alternate pathways of structural evolution in the integument of tetrapods
Digital end organs composed of hard, modified epidermis, generally referred to as claws, are present in mammals and reptiles as well as in several non‐amniote taxa such as clawed salamanders andExpand
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Tail growth in Chamaeleo dilepis (Sauria: Chamaeleonidae): functional implications of segmental patterns
Patterns of growth of caudal vertebrae in the chameleon Chamaeleo dilepis were determined using principal component analysis, and compared to growth of the entire tail relative to snout–vent length.Expand
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The invertebrate acid deoxyribonucleases and molecular taxonomy.
  • A. Russell
  • Biology, Medicine
  • Comparative biochemistry and physiology
  • 1 August 1966
Abstract 1. 1. The effects of three salts at one concentration on the kinetics of crude preparations of acid DNase from 38 invertebrates were measured. 2. 2. Taxonomically related animals haveExpand
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