R's DenDF: Satterthwaite's denominator degrees of freedom.
R's F value.
R's Mean Sq: F σ².
R's messages (Type III: Missing cells for: ...).
R's NumDF.
R's Pr(>F).
R's Sum Sq: F σ² NumDF.
The terms (R's row names), in the order of the formula's terms; terms without a test come last.
The type of the sums of squares.
R's warnings (about the eigenvalues of the Hessian of the deviance in the variance parameters).
Result of lmerAnova for one fit: lmerTest's ANOVA table, one row per term of the fixed effects.