One of the mysteries of the English language finally explained.
- ‘Locally there are ‘hints’ of a parallel fibrous, possibly spicular, structure in the normally irregularly crystalline microstructure of the trabeculae.’
- ‘However, in specimens in which the secondary rays are well developed, the spicular structure becomes complicated and the primary six-rayed spicule is difficult to discern.’
- ‘The spicular skeleton consists of six rays triaxially arranged.’
- ‘Subsequent microscopic study of the outer layer shows that, in a few specimens, patches of the microcrystalline material grade laterally into vestigial spicular fabric.’
- ‘They are largely silicified replacements of the once opaline skeletons, but details of their spicular and skeletal relationships are moderately well preserved.’
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