Abstract
Discussion of Lamont's claim that the anterior pits in the axial furrows of Platycalymene duplicata point to a trisegmental origin of the frontal lobe of the glabella. Stubblefield considers the claim erroneous.
C. J. Stubblefield; Remarks on Dr. Lamont's interpretation of features in the trilobite Platycalymene. Geological Magazine 1950;; 87 (1): 67. doi:
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Discussion of Lamont's claim that the anterior pits in the axial furrows of Platycalymene duplicata point to a trisegmental origin of the frontal lobe of the glabella. Stubblefield considers the claim erroneous.