parent_taxon paraceltitina
The ___MASK28___ is a superfamily within the ammonoid order ___MASK14___ . The ___MASK28___ , named by Frech in 1902 , presently contains ten families , only one of which was included in the original Otocerataceae of Hyatt , 1900 , the remaining having been added . The Triassic is a geologic period and system which spans 50 . 9 million years from the end of the Permian Period million years ago ( ___MASK59___ ), to the beginning of the Jurassic Period ___MASK59___ . The Triassic is the first period of the Mesozoic Era . Both the start and end of the period are marked by major extinction events . The Triassic was named in 1834 by Friedrich von Alberti , after the three distinct rock layers (" tri " meaning " three ") that are found throughout Germany and northwestern Europe  red beds , capped by marine limestone , followed by a series of terrestrial mud - and sandstones  called the " Trias ". The Carboniferous is a geologic period and system that spans 60 million years from the end of the Devonian Period million years ago ( ___MASK59___ ), to the beginning of the Permian Period , ___MASK59___ . The name " Carboniferous " means " coal - bearing " and derives from the Latin words " carb " (" coal ") and " fer " (" I ___MASK24___ , I carry "), and was coined by geologists William Conybeare and William Phillips in 1822 . Based on a study of the British rock succession , it was the first of the modern ' system ' names to be employed , and reflects the fact that many coal beds were formed globally during that time . The Carboniferous is often treated in North America as two geological periods , the earlier Mississippian and the later Pennsylvanian . The Permian is a geologic period and system which spans 46 . 7 million years from the end of the Carboniferous Period million years ago ( ___MASK59___ ), to the beginning of the Triassic Period 252 . 2 ___MASK59___ . It is the last period of the Paleozoic Era ; the following Triassic Period belongs to the Mesozoic Era . The concept of the Permian was introduced in 1841 by geologist Sir Roderick Murchison , who named it after the city of Perm . ___MASK14___ is an order that contains almost all ammonoid cephalopod genera from the Triassic as well as ancestral forms from the Upper Permian , the exception being the phylloceratids which gave rise to the great diversity of post Triassic ammonites . Paraceltitina is a suborder of early , primitive ceratitids ( ammonoid cephalopods ) from the middle and upper Permian ; mostly equivalent to the ___MASK28___ which it contains . Still used in some classifications but is otherwise disregarded .