Sclerotic rings Stock Photos and Images
. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. BUFFALO SOCIETY OF NATURAL SCIENCES 131 E 2477 A nearly complete fish. It exhibits only a single pectoral, and this is partly destroyed owing to its having been exposed in the concretion and having become weathered before it was collected. It shows both orbits indicated by the sclerotic rings; several (at least five) banks of teeth, (it is seen that these teeth overlap at their bases); also neural arches, and f ossihzed muscle-tissue, arranged in segments, near the pectoral fins. In the region of the alimentary ca Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-of-the-buffalo-society-of-natural-sciences-natural-history-science-buffalo-society-of-natural-sciences-131-e-2477-a-nearly-complete-fish-it-exhibits-only-a-single-pectoral-and-this-is-partly-destroyed-owing-to-its-having-been-exposed-in-the-concretion-and-having-become-weathered-before-it-was-collected-it-shows-both-orbits-indicated-by-the-sclerotic-rings-several-at-least-five-banks-of-teeth-it-is-seen-that-these-teeth-overlap-at-their-bases-also-neural-arches-and-f-ossihzed-muscle-tissue-arranged-in-segments-near-the-pectoral-fins-in-the-region-of-the-alimentary-ca-image233925979.htmlRMRGG6Y7–. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. BUFFALO SOCIETY OF NATURAL SCIENCES 131 E 2477 A nearly complete fish. It exhibits only a single pectoral, and this is partly destroyed owing to its having been exposed in the concretion and having become weathered before it was collected. It shows both orbits indicated by the sclerotic rings; several (at least five) banks of teeth, (it is seen that these teeth overlap at their bases); also neural arches, and f ossihzed muscle-tissue, arranged in segments, near the pectoral fins. In the region of the alimentary ca
. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. BUFPALO SOCIETY OF NATURAL SCIENCES 41 Sclerotic ring (fig. ii).—A feature of great interest in this specimen is the preservation of a complete sclerotic ring, situated near the right orbit, and not far removed from its natural position. It is of great importance as affording for the first time a correct idea of the form of the eye in Dinichthys. Complete sclerotic rings of Arthrodira are extremely rare, owing to the fact that on dissolution of the animal the segments composing the ring became more or less disarra Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bulletin-of-the-buffalo-society-of-natural-sciences-natural-history-science-bufpalo-society-of-natural-sciences-41-sclerotic-ring-fig-iia-feature-of-great-interest-in-this-specimen-is-the-preservation-of-a-complete-sclerotic-ring-situated-near-the-right-orbit-and-not-far-removed-from-its-natural-position-it-is-of-great-importance-as-affording-for-the-first-time-a-correct-idea-of-the-form-of-the-eye-in-dinichthys-complete-sclerotic-rings-of-arthrodira-are-extremely-rare-owing-to-the-fact-that-on-dissolution-of-the-animal-the-segments-composing-the-ring-became-more-or-less-disarra-image233947441.htmlRMRGH69N–. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. BUFPALO SOCIETY OF NATURAL SCIENCES 41 Sclerotic ring (fig. ii).—A feature of great interest in this specimen is the preservation of a complete sclerotic ring, situated near the right orbit, and not far removed from its natural position. It is of great importance as affording for the first time a correct idea of the form of the eye in Dinichthys. Complete sclerotic rings of Arthrodira are extremely rare, owing to the fact that on dissolution of the animal the segments composing the ring became more or less disarra
Plants and their ways in South Africa . ckening— {a) Not forming patterns— Collenchyma, angles thickened, unlignified with contents.Parenchyma— Sclerotic cells, uniformly thickened, lignified without contents.Thick walled parenchyma, uniformly thickened,retaining contents.Prosenchyma— Sclerenchyma, uniformly thickened, lignified,without contents.{b) Forming patterns— Parenchyma with simple pits found in wood, phloem, cortex, pith.Prosenchyma and vessels, forming rings, spirals,simple and bordered pits; found in wood; intracheae and tracheids. Cells and Tissues 69 w 4. As to fusion— [a) Without Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/plants-and-their-ways-in-south-africa-ckening-a-not-forming-patterns-collenchyma-angles-thickened-unlignified-with-contentsparenchyma-sclerotic-cells-uniformly-thickened-lignified-without-contentsthick-walled-parenchyma-uniformly-thickenedretaining-contentsprosenchyma-sclerenchyma-uniformly-thickened-lignifiedwithout-contentsb-forming-patterns-parenchyma-with-simple-pits-found-in-wood-phloem-cortex-pithprosenchyma-and-vessels-forming-rings-spiralssimple-and-bordered-pits-found-in-wood-intracheae-and-tracheids-cells-and-tissues-69-w-4-as-to-fusion-a-without-image343309782.htmlRM2AXF33J–Plants and their ways in South Africa . ckening— {a) Not forming patterns— Collenchyma, angles thickened, unlignified with contents.Parenchyma— Sclerotic cells, uniformly thickened, lignified without contents.Thick walled parenchyma, uniformly thickened,retaining contents.Prosenchyma— Sclerenchyma, uniformly thickened, lignified,without contents.{b) Forming patterns— Parenchyma with simple pits found in wood, phloem, cortex, pith.Prosenchyma and vessels, forming rings, spirals,simple and bordered pits; found in wood; intracheae and tracheids. Cells and Tissues 69 w 4. As to fusion— [a) Without
