Risultati di ricerca
1 giorno fa · Pedipalp. Pedipalps (commonly shortened to palps or palpi) are the secondary pair of forward appendages among chelicerates – a group of arthropods including spiders, scorpions, horseshoe crabs, and sea spiders. The pedipalps are lateral to the chelicerae ("jaws") and anterior to the first pair of walking legs.
1 giorno fa · Pentecopterus is a genus of eurypterid, an extinct group of aquatic arthropods. Fossils have been registered from the Darriwilian age of the Middle Ordovician period, as early as 467.3 million years ago. The genus contains only one species, P. decorahensis, that is the oldest known eurypterid, surpassing other Ordovician eurypterids, such as ...
1 giorno fa · Bushizheia. Bushizheia yangi is an extinct species of arthropod known from a single specimen found in the Early Cambrian Maotianshan Shales Lagerstätte in China. While it had a superficially trilobite-like bodyform, it also possessed large frontal appendages similar to those of radiodonts.
1 giorno fa · Tympanocryptis lineata. The Canberra grassland earless dragon is a small, light brown to grey brown lizard usually less than 150 millimetres long and weighing 5–9 grams. [2] [3] The species has a tapering snout, six or seven dark brown bands on its back, dark speckling on its front (especially the throat), and eleven or fewer dark blotches on ...
1 giorno fa · First cephalopod statoliths from the Lower Cretaceous of Poland and United Kingdom are described by Pindakiewicz et al. (2022), who compare Mesozoic statoliths to those of extant cephalopods, and find the closest resemblance between Mesozoic forms and statoliths of extant idiosepiids.
1 giorno fa · Norepinephrine. Norepinephrine ( NE ), also called noradrenaline ( NA) or noradrenalin, is an organic chemical in the catecholamine family that functions in the brain and body as a hormone, neurotransmitter and neuromodulator. The name "noradrenaline" (from Latin ad, "near", and ren, "kidney") is more commonly used in the United Kingdom ...
