using System;
using System.Collections.Generic;
using System.Linq;

//public interface IThing {} 
public class MachineClass /* : IThing */ { }
public class AnimalClass  /* : IThing */ { }
public class Plane        /* : IThing */ { }

public class Program
{
     public enum Things
     {
         Car,
         Animal,
         Plane
     }

     private static readonly IDictionary<Things, string> _classNameMap = 
         new Dictionary<Things, string> {
          { Things.Car,    "MachineClass" },
          { Things.Animal, "AnimalClass"  },
          { Things.Plane,  "FlyClass"     }  };

     public static void Main(string[] args)
     {
         var realtypes = _classNameMap.ToDictionary(
                 kvp => kvp.Key,
                 kvp => System.Type.GetType(/*"Namespace." +*/ kvp.Value));

         Type dynamicType = realtypes[Things.Plane]; // typeof(Namespace.FlyClass)

         foreach (var realtype in realtypes)
             Console.WriteLine("{0}, class {1}", 
                     realtype.Key, realtype.Value);
     }

}