  Recently a novel hadronic state of mass 6.9 GeV, that decays mainly to a pair
of charmonia, was observed in LHCb. The data also reveals a broader structure
centered around 6490 MeV and suggests another unconfirmed resonance centered at
around 7240 MeV, very near to the threshold of two doubly charmed $\Xi_{cc}$
baryons. We argue in this note that these exotic hadrons are genuine
tetraquarks and not molecules of charmonia. It is conjectured that they are
V-baryonium tetraquarks, namely, have an inner structure of a baryonic vertex
with a $cc$ diquark attached to it, which is connected by a string to an
anti-baryonic vertex with a $\bar c \bar c$ anti-diquark. We examine these
states as the analogs of the states $\Psi(4360)$ and $Y(4630)$/$\Psi(4660)$
which are charmonium-like tetraquarks. One way to test these claims is by
searching for a significant decay of the state at 7.2 GeV into
$\Xi_{cc}\overline\Xi_{cc}$. Such a decay would be the analog of the decay of
the state $Y(4630)$ into to $\Lambda_c\overline\Lambda_c$. We further argue
that there should be trajectories of both orbital and radial excited states of
the $X(6900)$. We predict their masses. It is possible that a few of these
states have already been seen by LHCb.
