part of
preceded by
NF stage 51
NF stage 52
Nieuwkoop and Faber stage 52, corresponding to a tadpole of age about 21 days at 22-24 Celsius and having the following external morphological criteria: Forelimb bud irregularly conical. Hindlimb bud showing first indication of ankle constriction and first sign of flattening of foot. Length: 42 - 56 mm.
XAO:1000064
xenopus_developmental_stage
premetamorphosis stage
NF stage