A 52-year-old cyclist trying to cross Santa Rosa Avenue early Monday afternoon was struck and seriously injured, suffering a major head trauma, according to Santa Rosa Police.

Darrell Lee Spurlock, of Santa Rosa, was taken to Santa Rosa Memorial Hospital after being found unconscious on the road after the 12:20 p.m. collision. He sustained life-threatening injuries, police said.

Spurlock rode his bike west out of the Santa Rosa Marketplace, and was attempting to cross Santa Rosa Avenue, police said, when a southbound Toyota Corolla driven by Cody Austin Gibbs, 25, of Santa Rosa, struck him.

Spurlock smashed into the front windshield of Gibbs’ car then landed on the pavement, according to police.

Gibbs did not have time to stop and Spurlock was not in a crosswalk, police said.

Gibbs stayed on the scene and cooperated with the investigation, according to authorities.

You can reach Staff Writer Nick Rahaim at 707-521-5203 or nick.rahaim@pressdemocrat.com. On Twitter @nrahaim.