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Sosioceras
''Sosioceras'' is an Upper Permian shouchangoceratin pseudohaloritid characterized by a subdiscoidal shell, about 2 cm in diameter, marked by growth lines, as with ''Neoaganides ''Neoaganides'' is a small, 1–2 cm diameter subdiscoidal to subglobular goniatitid belonging to the family Pseudohaloritidae that lived from the Late Pennsylvanian to the Late Permian Late may refer to: * LATE, an acronym which could st ...'', and having a mature peristome with a double constriction near the periphery. The suture also closely resembles that of ''Neoaganides''. ''Sosioceras'' is found in the Upper Permian Sosio limestone of Sosio valley, in Sicily, first described by Gemmellaro, 1880, as ''Brancoceras pygmaeum'', thought be a rare element of the Sosio fauna. Miller and Furnish, 1957, redefined it as ''Neoaganides pygmaeum'' (Gemmellero) on the basis of close similarity of size, form, and suture to ''Neoaganides grahamensis''. Based on features of the peristome and rec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shouchangoceratinae
Shouchangoceratinae is one of three ammonoid subfamilies of the family Pseudohaloritidae, which in turn is one of two families in the Goniatitid superfamily Pseudohaloritoidea. The Shouchangoceratinid ammonoids were found in marine environments throughout the world during the Permian, particularly in China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and .... References The Paleobiology Databaseaccessed on 10/01/07 Pseudohaloritidae Permian extinctions {{Goniatitida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Permian
The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. 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 region of Perm in Russia. The Permian witnessed the diversification of the two groups of amniotes, the synapsids and the sauropsids (reptiles). The world at the time was dominated by the supercontinent Pangaea, which had formed due to the collision of Euramerica and Gondwana during the Carboniferous. Pangaea was surrounded by the superocean Panthalassa. The Carboniferous rainforest collapse left behind vast regions of desert within the continental interior. Amniotes, which could better cope with these drier conditions, rose to dominance in place of their amp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neoaganides
''Neoaganides'' is a small, 1–2 cm diameter subdiscoidal to subglobular goniatitid belonging to the family Pseudohaloritidae that lived from the Late Pennsylvanian to the Late Permian Late may refer to: * LATE, an acronym which could stand for: ** Limbic-predominant age-related TDP-43 encephalopathy, a proposed form of dementia ** Local-authority trading enterprise, a New Zealand business law ** Local average treatment effect, ..., existing for some 56 million years. The shell of ''Neoaganides'' has a well-developed hyponomic sinus and shallow lateral reentrents at the aperture outlined by growth lines. Otherwise sculpture is lacking. The mature peristome rimming the aperture is simple and unconstricted, without pronounced lappets. The siphuncle is subcentral, ventral of the dorsal septal flexture. The suture is simple, goniatitic, with essentially symmetrical, undivided lobes. The ventral lobe is moderately wide, lanceolate or linguate, tongue-shaped; the dorsal lobe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gaetano Giorgio Gemmellaro
Gaetano Giorgio Gemmellaro (24 February 1832, in Catania – 16 March 1904, in Palermo) was an Italian geologist, paleontologist and politician. Biography Gemmellaro was the son of Carlo Gemmellaro, a teacher of geology at the University of Catania. He studied medicine, specialising in ophthalmology at the University of Naples Federico II. Here he met Arcangelo Scacchi, who introduced him to natural sciences, specifically geology and mineralogy, disciplines in which Gemmellaro published a series of memoirs. In 1858, he was appointed special professor of geology and mineralogy at the University of Catania. During this time, he met the English geologist Charles Lyell, who employed Gemmellaro to study the stratigraphy of the Etna lava, in exchange for two publications in the annals of the Geological Society of London. In 1860, he was commissioned by the British Government to conduct geological surveys of the Canary Islands. During the trip, however, learning of Giuseppe Garibald ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permian Cephalopods
The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. 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 region of Perm in Russia. The Permian witnessed the diversification of the two groups of amniotes, the synapsids and the sauropsids (reptiles). The world at the time was dominated by the supercontinent Pangaea, which had formed due to the collision of Euramerica and Gondwana during the Carboniferous. Pangaea was surrounded by the superocean Panthalassa. The Carboniferous rainforest collapse left behind vast regions of desert within the continental interior. Amniotes, which could better cope with these drier conditions, rose to dominance in place of their amphibian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permian Animals Of Europe
The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. 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 region of Perm in Russia. The Permian witnessed the diversification of the two groups of amniotes, the synapsids and the sauropsids (reptiles). The world at the time was dominated by the supercontinent Pangaea, which had formed due to the collision of Euramerica and Gondwana during the Carboniferous. Pangaea was surrounded by the superocean Panthalassa. The Carboniferous rainforest collapse left behind vast regions of desert within the continental interior. Amniotes, which could better cope with these drier conditions, rose to dominance in place of their amphibian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
