A man in Australia was baffled to come across the decomposed body of an alien-like creature on a beach.

Pastor Alex Tan was on a morning walk at the Cotton Tree Beach in Australia's Sunshine Coast when he saw the dead creature.

“I thought it was a three-meter flatty or something but as I got closer, it looked like a cross between a dog, a possum, a kangaroo and some sort of giant rat,” Tan told 7NEWS.com.au.

The creature appeared to be hairless, and had human-like hands. Its skull was exposed, but the body and tail appeared mostly intact.

“Maybe something had come along and had a little nibble of it,” Tan added. “I just think it’s some sort of deformed possum.”

Tan, who got intrigued by the creature, decided to try and identify it. In a video, which he shared on his Instagram, Tan asked social media users to help him identify the creature. He also said whoever can assist him know the species will be treated with chicken parmigiana at a local pub.

Tan posted the video on Instagram on Tuesday; however, it wasn't clear when he found the creature.

Several users commented on the post, with some saying it's a rat, while another made a wild guess, calling it a Komodo dragon.

"I’m almost certain it’s a ringtail possum. Skull and dentition match up, hands look the same and the size is about right too," one user wrote.

Queensland Museum Collection Manager Heather Janetzki said the animal was a brushtail possum. These creatures are found in Queensland, New South Wales, Victoria, South Australia, Tasmania, Western Australia and Northern Territory. They are also found in New Zealand. These nocturnal creatures feed on dingoes, pythons, foxes and cats.

There have been several incidents in the past, where unidentified creatures have been found on beaches.

A woman walking her dog on a beach in England in January was shocked to find her canine nibbling on a dead, mysterious creature. The creature was found on Wirral beach in Merseyside. Amy Ayobowen, 42, took its picture, and posted it on a Facebook community page. “Can someone reassure me that my dog didn't try to eat alien remains this afternoon on the beach?” Ayobowen wrote. Many guessed the creature to be likely the remains of a ray or a thornback ray. However, no one could confirm its true identity.

Representative image Credit: Pixabay / Pexels