Weird Fiction- late 19th, early 20th cent. Supernatural fiction blending sci-fi, gothic fiction, folk tales, romanticism, ghost stories, and fantasy while avoiding genre tropes, and making them... weird. Edgar Allen Poe
Cosmic Horror- Themes of Detachment and Isolation, the Unknown, the Fragility of Sanity, pointlessness of human existence, and Visceral Textures (like tentacles). HP Lovecraft