Megamonodontium

Megamonodontium mccluskyi (Mygalomorphae: Barychelidae) is an extinct species of spider from the Miocene (16–11 million years ago).^[1][2][3] Its fossil was discovered in June 2020 in New South Wales, Australia, at McGraths Flat fossil site, by Dr Simon McClusky.^[4][5] It is the first fossil of the Barychelidae family ever found.^[6]

Megamonodontium Temporal range: 16–11 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ Miocene
Holotype specimen (AM F.145559)
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Subphylum:	Chelicerata
Class:	Arachnida
Order:	Araneae
Infraorder:	Mygalomorphae
Family:	Barychelidae
Genus:	†Megamonodontium McCurry et al., 2023
Species:	†M. mccluskyi
Binomial name
†Megamonodontium mccluskyi McCurry et al., 2023

Megamonodontium is the 2nd largest spider in the fossil record, along with the Middle Jurassic spider from China, Mongolorachne. With a leg span of 50 millimeters. (2 inches long) There could be even larger spiders out there in the fossil record.