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With an estimated length of 33.9 cm (13.3 in) based on the assumption that the fossil was that of a spider, and with a leg-span estimated to be 50 centimetres (20 in), Megarachne servinei would have been the largest spider to have ever existed; exceeding the goliath birdeater (Theraphosa blondi), which has a maximum leg-span of around 30 cm (12 ...
Mongolarachne is an extinct genus of spiders placed in the monogeneric family Mongolarachnidae.The genus contains only one species, Mongolarachne jurassica, described in 2013, which is presently the largest fossilized spider on record. [1]
Most of these early segmented fossil spiders from the Coal Measures of Europe and North America probably belonged to the Mesothelae, or something very similar, a group of spiders with the spinnerets placed underneath the middle of the abdomen, rather than at the end as in modern spiders. They were probably ground-dwelling predators, living in ...
"As well as having their beautiful and striking golden colour, these fossils are spectacularly preserved." 450-million-year-old spider relative discovered perfectly preserved in fool’s gold in ...
Ranger Greg Francek found a trove of fossilized animals and petrified trees more than 5 million years old in an area east of Oakland, California.
The newly discovered long-extinct species is described as a “large spider-like arachnid” with “distinctive large spines on the legs” by the study’s authors.
The only recorded find of a dinosaur fossil in Central America consists of a single femur discovered from Middle Cretaceous age deposits in Comayagua Department in the central part of Honduras. The fossil had been found in January, 1971 by Bruce Simonson and Gregory Horne, though it was later sent to the National Museum of Natural History, USA ...
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]