User:Abyssal/Portal:Jurassic/DYK/5

... that Lepidotus was a genus of prehistoric fish that existed from the Late Triassic (Rhaetic) to the middle Cretaceous (Cenomanian)?
... that highlights from the history of troodontid research include the discovery that troodontids (example pictured) were among the brainiest dinosaurs?
... that the extinct horsetail Equisetum thermale grew in Jurassic hot springs?
... that the extinct spider Eoplectreurys is the oldest described genus of Haplogynae, predating spiders from Cretaceous amber in Jordan and Lebanon?
... that the plesiosaur Bathyspondylus was first described in 1982 from a specimen collected in 1774?