part of
preceded by
cleavage stage
NF stage 3 (4-cell)
NF stage 4 (8-cell)
8-cell stage
Nieuwkoop and Faber stage 4, corresponding to an embryo of age 2 hr 15 min at 22-24 Celsius and having the following external morphological criteria: Advanced eight cell stage. Dorsal micro- and macromeres usually smaller than ventral ones; dorsal micromeres less pigmented than ventral ones. Length: 1.4 - 1.5 mm.
UBERON:0007236
XAO:1000014
xenopus_developmental_stage
NF stage