English: The cell state splitter is an organelle predicted and then first observed at the apical end of ectoderm cells in axolotl embryos at early gastrulation. It consists of an upper microfilament ring with an intermediate filament ring below it, subtended by a mat of microtubules. (Note not to scale: the vertical and horizontal scales are compressed, as 50 μm = 100 x 0.5 μm. The cell state splitter occupies only the top 1% of the height of an ectoderm cell.)