Error with constructing a dynamic array of threads in C++, using the thread class

As a part of a uni project I have to create a program which can have an arbitrary amount of threads given as a command line argument. I first tried making a dynamic array of threads like this: thread* threads = new thread[numThreads]; ( Note: I want to use the threads class, not pthreads ). I figured it didn't work because to my knowledge new tries to call default constructors to thread, which it doesn't have and lator on I cannot actually construct the threads properly. Then I tried to do it in the following way:

thread** threads = new thread*[numThreads];
for (int i = 0; i < numThreads; i++)
    {
        threads[i] = new thread(calculateFractal, width, height, numThreads, i, fractal, xmin, xmax, ymin, ymax, xStepSize, yStepSize, maxNorm);
    }

I have defined the function and all of the used variables in the aforementioned constructors in the for are of their appropriate data types:

void calculateFractal(int& width, int& height, int& numThreads, int& thisThreadNum, RGB**& fractal, 
    long double& xmin, long double& xmax,long double& ymin, long double& ymax,
    long double& xStepSize, long double& yStepSize, long double& maxNorm)

This code still doesn't work and gives the same compiler errors(C2672 and C2893) for essentially inappropriate function template as if I have not passed the correct type of arguments. Can you figure out what is wrong with the code?