A 12 V positive earth system with two coils and two sets of points, has two 12 V coils. The - terminals of both coils are connected to the switched side of the ignition switch. That part is “in parallel.”
The + terminal of each coil is connected to its respective set of points, which make and break the circuit to frame and battery +. I don’t call that part “parallel.”
Some vehicles with electric starters use 6V coils in a 12V system, with a resistor in circuit, called a “ballast resistor.”