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NF stage 7

^ http://purl.obolibrary.org/obo/XAO_1000017


Nieuwkoop and Faber stage 7 (64-cell stage), corresponding to an embryo of age 4 hr at 22-24 Celsius and having the following external morphological criteria: Large-cell blastula stage. In animal view about 10 micromeres along meridian. Length: 1.4 - 1.5 mm. [ https://www.worldcat.org/search?q=bn%3A0815318960 ]

Synonyms: 64-cell stage