Squares whose Digits can be Separated into 2 other Squares/Mistake

Source Work

 * The Dictionary
 * $1444$
 * $1444$

Mistake

 * $1444$ is also the $4$th square whose digits form two other squares juxtaposed, $1444 = 144 : 4$.

Correction
It is actually the $5$th, after $49$, $169$, $361$ and $1225$.

This mistake is corrected in of $1997$, which explicitly lists the squares in question.