NF stage 33 and 34
Nieuwkoop and Faber stage 33/34, corresponding to an embryo of age 1 day, 20 hr 30 min at 22-24 Celsius and having the following external morphological criteria: Stomodeal invagination a shallow vertical groove. Dorsal part of eye more pigmented than ventral part; distinct melanophores in dorsal part. Melanophores appearing dorsally on the head and laterally in a row extending from just below the pronephros backwards. Length of tail bud about twice its breadth. Beginning of heart beat. Length: 4.7 - 5.3 mm.
Also appears inxpo
class Information
has_obo_namespace
xenopus_developmental_stage
class Relations
Subclass of
Related from
starts during
- neuromast mantle cell
- lateral line
- neuromast support cell
- melanophore
- hyaloid blood vessel
- cartilage tissue
- hyaline cartilage tissue
- hyaloid vascular plexus
- ophthalmic artery
- perichondrial cell
- chondrocyte
- trunk lateral line
- thyroid primordium
- hypobranchial placode
- optic nerve
- fibrocartilage
- non-mineralized cartilage tissue
- trunk placode
- vagus nerve
- cartilaginous condensation
- lens epithelium
- left omphalomesenteric vein
- perichondrium
- lung bud
- supraorbital lateral line
- endoskeleton
- lens fiber cell mass
- lateral line system
- infraorbital lateral line primordium
- lateral line primordium
- hyaloid vein
- lens transitional zone
- mineralized cartilage tissue
- intersomitic vessel
- optic disc
- omphalomesenteric vein
- iris
- non-mineralized hyaline cartilage tissue
- musculoabdominal vein
- cell condensation
- elastic cartilage tissue
- jaw muscle primordium
- hyaloid artery
- oculomotor nerve
ends during
preceded by