part of
preceded by
gastrula stage
NF stage 9
NF stage 10
Nieuwkoop and Faber stage 10, corresponding to an embryo of age 9 hr at 22-24 Celsius and having the following external morphological criteria: Initial gastrula stage. First indication of blastopore only by pigment concentration. No formation of groove. Length: 1.4 - 1.5 mm.
XAO:1000020
xenopus_developmental_stage
NF stage