This is part of a multi-room exhibit by a Chicago artist, Michael Rakowitz, that attempts to link the 1910 stranding of dogs on an island to the Armenian genocide to terra cotta architectural elements made by an Armenian plaster caster and touching on Louis Sullivan and the destruction of Native Americans.
This is from a display case that held some artifacts relating to one or another of those subjects. The artist also ground up some bones to make plaster casts and used bones to replicate the patterns of the plaster casts.