Table 2 Morphogenetic event movements (only shifts of the consensus are listed)
Branch leading from the Onychocaudata to the common ancestor of the Cladoceromorpha | |||
|---|---|---|---|
|  | Morphogenetic event | Shift | Relative to… |
C/D | Naupliar SL-ir somata are expressed / moveable naupliar appendages are present | late | Hatching from resting or subitaneous egg (A), presence of a naupliar nervous system (B), telsonic longitudinal neurite bundles are present (G), first molt (I) |
T | Differentiation of the ventral food groove | early | Postnaupliar SL-ir somata are expressed (P), moveable anterior trunk limbs are developed (R) |
V | Third molt | late | Postnaupliar SL-ir somata are expressed (P), moveable anterior trunk limbs are developed (R) |
Branch leading from the Cladoceromorpha to the common ancestor of the Cladocera | |||
|  | Morphogenetic event | Shift | Relative to… |
C/D | Naupliar SL-ir somata are expressed / moveable naupliar appendages are present | late | Conical furcal rami are developed at the posterior end of the body (N), postnaupliar SL-ir somata are expressed (P), moveable anterior trunk limbs are developed (R), differentiated furcal rami are present at the posterior end of the body (U) |
H | Carapace anlagen appear dorsally | late | Conical furcal rami are developed at the posterior end of the body (N), compound eye anlagen appear dorsally (S) |
O | Second molt | late | Postnaupliar SL-ir somata are expressed (P), moveable anterior trunk limbs are developed (R), Differentiated furcal rami are present at the posterior end of the body (U) |
T | Differentiation of the ventral food groove | early | postnaupliar neuromeres are developed (K), thoracic neuromeres are developed (L), three lateral appendage nerves are present (Q) |
X | Anterior-most trunk limbs are almost completely differentiated | early | Postnaupliar SL-ir somata are expressed (P), three lateral appendage nerves are present (Q), moveable anterior trunk limbs are developed (R), differentiated furcal rami are present at the posterior end of the body (U), third molt (V) |
Z | Optical neuropil anlagen appear in the protocerebrum | early | Differentiated furcal rami are present at the posterior end of the body (U), third molt (V) |