Local Density Conjecture for Salem numbers

Let ${\rm T}$ be the set of Salem numbers, let $c>1$, and let $A_q$ denote the classes of Salem numbers used in the source. Local Density Conjecture. For every $c>1$, there exists $M>0$ such that

$${\rm T}\cap[1,c]\subseteq\bigcup_{2\leq q\leq M}A_q.$$

The conjecture concerns the distribution of Salem numbers among the classes $A_q$; the source states that their distribution in the other classes remains obscure.