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Pterygotidae (the name deriving from the type genus Pterygotus, meaning "winged one") is a family of eurypterids, an extinct group of aquatic arthropods.They were members of the superfamily Pterygotioidea.
Pterygotus is an extinct genus of giant predatory eurypterid, a group of extinct aquatic arthropods. Fossils of Pterygotus have been discovered in deposits ranging in age from Middle Silurian to Late Devonian , and have been referred to several different species.
Pterygotioidea (the name deriving from the type genus Pterygotus, meaning "winged one") is a superfamily of eurypterids, an extinct group of aquatic arthropods. Pterygotioids were the most derived members of the infraorder Diploperculata and the sister group of the adelophthalmoid eurypterids.
The fourth eurypterid genus to be described (following Hibbertopterus in 1836 and Campylocephalus in 1838, not identified as eurypterids until later), out of those still seen as taxonomically valid in modern times, was Pterygotus (lit. ' winged one '), described by Louis Agassiz in 1839. [84]
At a length of 2.1 metres (6.9 feet), A. bohemicus is the largest known species of the genus, [1] whilst the smallest were A. floweri and A. perryensis both at a length of 20 cm (7.9 in). [2] The body of Acutiramus was very slender, with members of the genus being almost five times as long as they were wide. [3]
Pages in category "Indian masculine given names" The following 200 pages are in this category, out of approximately 348 total. This list may not reflect recent changes .
The male white-bellied minivet has a shiny black head, neck, tail and mantle. The species has a white collar, the throat is orange, the rest of the underparts are also white. The rump is orange with white markings on the wings.
Central Indian red-vented bulbul (P. c. humayuni) - Deignan, 1951: Found in south-eastern Pakistan, north-western and north-central India; Punjab red-vented bulbul (P. c. intermedius) - Blyth, 1846: Originally described as a separate species. Found in Kashmir and Kohat down to the Salt Range and along the western Himalayas to Kumaon.