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If thick disks are ubiquitous and a natural product of disk galaxy formationand/or evolution processes, all undisturbed galaxies which have evolved duringa significant fraction of a Hubble time should have a thick disk. The late-typespiral galaxy NGC 4244 has been reported as the only nearby edge-on galaxywithout a confirmed thick disk. Using data from the Spitzer Survey of StellarStructure in Galaxies (S4G) we have identified signs of two disk components inthis galaxy. The asymmetries between the light profiles on both sides of themid-plane of NGC 4244 can be explained by a combination of the galaxy not beingperfectly edge-on and a certain degree of opacity of the thin disk. We arguethat the subtlety of the thick disk is a consequence of either a limitedsecular evolution in NGC 4244, a small fraction of stellar material in thefragments which built the galaxy, or a high amount of gaseous accretion afterthe formation of the galaxy.

The thick disk in the galaxy NGC 4244 from S4G imaging