Name: NF stage 13
XAO Id: 1000023
Definition: "Nieuwkoop and Faber stage 13, corresponding to an embryo of age 14 hr 45 min at 22-24 Celsius and having the following external morphological criteria: Slit-blastopore stage. Neural plate faintly delimited; slight elevation of its rostral part and slight flattening of its caudal part. Caudal part of median groove formed. Length: 1.5 - 1.6 mm."
|Preceded By: NF stage 12.5||Succeeded By: NF stage 14|