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neural spine

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.01 sec.
neural spine [′nu̇r·əl ′spīn]
(anatomy)
The spinous process of a vertebra.


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The researchers determined that the dinosaur possessed a bifurcated, or two-part, neural spine.
The anterior dorsal-fin pterygiophore formula indicates the interdigitation pattern of supraneurals and pterygiophores within interneural spaces; neural spines are indicated by slashes, supraneural (predorsal) bones by an "S," pterygiophores by "2" (pterygiophores with two supernumerary rays and a serially associated ray) or "1" (no supernumerary ray and one serially associated ray).
Remarks--The vertebrae of Texasophis are distinguished by their small size, elongate vertebral form, moderately vaulted neural arch, low neural spine, and especially by the distinct hemal keel that is separated from strong subcentral ridges by very deep grooves.
 
 
 
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