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Neuromeric model of Bergquist and Källén (1954). Note that neuromeres I–VII are superposed by transversal bands 1–7. Also, neuromeres I–II imply an ending of the forebrain axis in the telencephalon (a columnar notion departing from the axial concept of His). In subsequent publications, Bergquist and Källèn corrected this error (see Figure 6), noting that neither the telencephalon nor the eye vesicles represent true neuromeres.
