Entity: Draconic

Source Core Rulebook pg. 196 ^4.0

PFS Note The wyrmblessed sorcerer bloodline provides options for primal and imperial dragons. Character with a similar draconic connection, such as draconic bloodline sorcerors or draconic instinct barbarians, can also select from these dragon types. You must own a copy of Lost Omens: The Mwangi Expanse to select these options.

The blood of dragons flows through your veins. These beasts are both fearsome in combat and skilled at magic.

At 1st level, choose the type of dragon that influenced your bloodline. You can't change your dragon type later. This choice affects how some of your bloodline spells function. The good metallic dragons and their damage types are brass (fire), bronze (electricity), copper (acid), gold (fire), and silver (cold). The evil chromatic dragons and their damage types are black (acid), blue (electricity), green (poison), red (fire), and white (cold).

Source Mwangi Expanse pg. 76
Because the wyrmblessed and draconic bloodlines have similar origins, they count the same as each other for the purposes of prerequisites and access requirements.