  Coherence-resonance chimera was discovered in [Phys. Rev. Lett. 117, 014102
(2016)], which combines the effect of coherence resonance and classical
chimeras in the presence of noise in a network of type-II excitable systems.
However, the same in a network of type-I excitable units has not been observed
yet. In this paper, for the first time, we report the occurrence of
coherence-resonance chimera in coupled type-I excitable systems. We consider a
paradigmatic model of type-I excitability, namely the saddle-node infinite
period model and show that the coherence-resonance chimera appears over an
optimum range of noise intensity. Moreover, we discover a unique chimera
pattern that is a mixture of classical chimera and the coherence-resonance
chimera. We support our results using quantitative measures and map them in
parameter space. This study reveals that the coherence-resonance chimera is a
general chimera pattern and thus it deepens our understanding of role of noise
in coupled excitable systems.
