We examine the invariant-mass spectrum of $D^{0}p$ in ${\overline{B}}^0\to p\overline{p}{D}^0$ decay measured by BABAR and find that, through the two-step processes of ${\overline{B}}^0\to {\mathbf{B}}_c^{+}(\to D^{0}p)\overline{p}$, where ${\mathbf{B}}_{\mathbf{c}}$ denotes a charmed baryon state, some of the peaks can be identified with the established ${\mathrm{\Sigma }}_c(2800{)}^{+}$, ${\mathrm{\Lambda }}_c(2880{)}^{+}$, and ${\mathrm{\Lambda }}_c(2940{)}^{+}$. Moreover, to account for the measured spectrum, it is necessary to introduce a new charmed baryon resonance with $(m,\mathrm{\Gamma })=(3212\pm 20,167\pm 34)\mathrm{MeV}$.

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