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Note the subdivision of the pvfo (1), the posteriorly facing accessory lamina in the postzygapophyseal centrodiapophyseal fossa (2), the short, subvertical, accessory lamina in the spinodiapophyseal fossa (3), and the anteriorly bifurcated pcdl, with the dorsal branch being oriented nearly vertically (4). Abb.: pap, parapophysis; pre, pre-epipophysis; pvfo, posteroventral fossa. Scale bar = 10 cm.
