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Histological features of ichthyosaur humeral sections.

By Alexandra Houssaye (397195), Torsten M. Scheyer (431726), Christian Kolb (585149), Valentin Fischer (189579) and P. Martin Sander (164109)

Abstract

<p>A–C and D–E, <i>Ichthyosaurus</i> SMNS Unnumbered outer and inner parts of the section respectively. A, primary fibrolamellar bone (FLB) in natural light (NL); note the isotropic nature of the primary fibrous bone (FB); B, FLB in polarized light (PL) illustrating the variable orientations of the primary osteons; C, ‘unusual parallel-fibered bone’ (UPFB) in PL with gypsum filter; D–E, extremely compact core of the section made of almost exclusively secondary bone in PL and PL with gypsum filter. F–I, <i>Ichthyosaurus</i> IPB R222 outer cortex. J, <i>Ichthyosaurus</i> SMNS Unnumbered outer cortex. F–H, primary FLB in PL with gypsum filter; F, laminar organization; G, radiating FLB; H, important amount of primary FB in the osseous trabeculae. I–J, UPFB in I, PL with gypsum filter and J, NL respectively; note the occurrence of simple vascular canals. FB: fibrous bone; PFB: parallel-fibered bone.</p

Topics: Ecology, Biological Sciences, anatomy, histology, ecology, paleoecology, Evolutionary biology, Organismal evolution, Marine biology, Paleontology, paleobiology, Paleozoology, Vertebrate paleontology, Zoology, ichthyosaur, humeral
Year: 2014
DOI identifier: 10.1371/journal.pone.0095637.g004
OAI identifier: oai:figshare.com:article/1074064
Provided by: FigShare
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