Nipponoolithus
... that with an estimated weight of only 100 grams (3.5 oz), Nipponoolithus is among the smallest fossil dinosaur eggs ever discovered?
... that with an estimated weight of only <span about="#mwt38" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"100"},"2":{"wt":"g"},"3":{"wt":"oz"}},"i":0}}]}' id="mwA1w" typeof="mw:Transclusion">100 grams (3.5</span><span about="#mwt38" typeof="mw:Entity"> </span><span about="#mwt38">oz)</span>, <i id="mwA10"><b id="mwA14"><a href="./Nipponoolithus" id="mwA18" rel="mw:WikiLink" title="Nipponoolithus">Nipponoolithus</a></b></i> is among the smallest fossil dinosaur eggs ever discovered?