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XB-STAGE-28
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Name: NF stage 16
XAO ID: 1000026 Definition: "Nieuwkoop and Faber stage 16, corresponding to an embryo of age 18 hr 15 min at 22-24 Celsius and having the following external morphological criteria: Mid neural fold stage. Anterior part of neural plate rectangular; darkly pigmented eye anlagen present; neural plate sharply constricted in the middle. Inner ridges on neural folds forming angle of about 90 degrees with neural plate in rhombencephalic region. Length: 1.5 - 1.6 mm." |
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| Preceded By: NF stage 15 | Succeeded By: NF stage 17 |