NF stage 5 (16-cell)

^ http://purl.obolibrary.org/obo/XAO_1000015

Nieuwkoop and Faber stage 5, corresponding to an embryo of age 2 hr 45 min at 22-24 Celsius and having the following external morphological criteria: Advanced sixteen cell stage. Dorsal micromeres distinctly smaller and less pigmented than ventral ones. Macromeres entirely separated by cleavage grooves. Length: 1.4 - 1.5 mm. [ https://www.worldcat.org/search?q=bn%3A0815318960 ]

Synonyms: 16-cell stage