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Some Aspects of the Ecology of Lingula (Brachiopoda) in Kaneohe Bay, HawaiiWorcester, William S 01 December 1969 (has links)
Lingula is one of the most morphologlcally conservative genera known. Thls brachiopod has remained essentially
unmodified for 350-400 mllllon years (Hyman, 1959. Paine,
1963). It is one of the oldest, if not the oldest, llvlng animal genus wlth a fossil record, and is well represented in
the geologic column from the Ordovician. Deposits containing
Lingula are thought to have been formed in a shallow, warm,
sea water environment (Weller, 1957, Cloud, 1948). Their
fossil remains occur on all continents (except possibly
Africa) in most kinds of sedimentary facies, but most
frequently ln black-shales and related sediments (Moore,
Lalioker and Fisher, 1952).
[...]
This investigation, which extended from June 1967 to
February 1969, deals with the distribution, limiting factors,
interspecific interactions, feeding, growth and other aspects
of the life history of Lingula reevii in the southern sector
of Kaneohe Bay. The main objectives were 1) to understand
the ecological position of Lingula reevii, especially with
respect to limiting factors, interspecific interactions,
distributional pattern and growth and 2) to use this
ecological information as an aid in the understanding of the
ancient environments in which Lingula is found as a fossil. / Typescript. Bibliography: leaves 48-49.
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The Relationship of the Lingual Nerve to the 3rd Molar Region: A Three Dimensional AnalysisGarbedian, Justin 19 January 2010 (has links)
The objective of this study was to: (1) model the course of the lingual nerve (LN) in the third molar region using digitized data and (2) investigate landmarks to aid in predicting the position of LN. A MicroScribe 3-DX digitizer and Autodesk® Maya® 8.5 were used to create 3-D in-situ models of LN for seven human cadaveric specimens. Regression analysis demonstrated that an anteriorly positioned lingula is directly proportional to the vertical distance of the LN relative to the alveolar crest (p < 0.05). A superiorly positioned mylohyoid ridge was also directly proportional to the vertical distance of the LN relative to the alveolar crest (p < 0.05). The LN is positioned closer to the alveolar crest in specimens where the mylohyoid ridge is positioned superiorly (p = 0.001). This study demonstrated a novel way of quantifying the relative position of the LN using 3-D computer modeling.
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The Relationship of the Lingual Nerve to the 3rd Molar Region: A Three Dimensional AnalysisGarbedian, Justin 19 January 2010 (has links)
The objective of this study was to: (1) model the course of the lingual nerve (LN) in the third molar region using digitized data and (2) investigate landmarks to aid in predicting the position of LN. A MicroScribe 3-DX digitizer and Autodesk® Maya® 8.5 were used to create 3-D in-situ models of LN for seven human cadaveric specimens. Regression analysis demonstrated that an anteriorly positioned lingula is directly proportional to the vertical distance of the LN relative to the alveolar crest (p < 0.05). A superiorly positioned mylohyoid ridge was also directly proportional to the vertical distance of the LN relative to the alveolar crest (p < 0.05). The LN is positioned closer to the alveolar crest in specimens where the mylohyoid ridge is positioned superiorly (p = 0.001). This study demonstrated a novel way of quantifying the relative position of the LN using 3-D computer modeling.
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