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Clemmys Backmani
''Clemmys'' is a genus of turtles currently containing a single extant species, the spotted turtle ''(Clemmys guttata)''. Taxonomy In the past, several other species were included in the genus, including a number of fossil species. DNA analysis has restricted the genus to containing only the spotted turtle. Fossil species are now restricted to the Neogene of North America as far back as the Miocene. Extant species formerly in ''Clemmys'' * Wood turtle - now ''Glyptemys insculpta'' * Bog turtle - now ''Glyptemys muhlenbergii'' * Western pond turtle - now ''Actinemys marmorata'' Fossil species *†''Clemmys hesperia'' Hay, 1903 - Pliocene *†''Clemmys owyheensis'' Brattstrom & Sturn, 1959 - Miocene (Hemphillian The Hemphillian North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), typically set from 10,300,000 to 4,900,000 years BP. It is usually considered ...) References { ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spotted Turtle
The spotted turtle (''Clemmys guttata''), the only species of the genus ''Clemmys'', is a small, semi-aquatic turtle that reaches a carapace length of upon adulthood. Their broad, smooth, low dark-colored upper shell, or carapace, ranges in its exact colour from black to a bluish black with a number of tiny yellow round spots. The spotting patterning extends from the head, to the neck and out onto the limbs. Sexually mature males have a concave plastron and a long, thick tail. By contrast, sexually mature females possess a flat plastron and have a tail notable shorter and thinner than mature males. Mature males also have a dark iris and face; females typically have a yellow or orange iris and a similarly coloured face that is distinctly lighter than males. Juveniles appear female-like in this regard and at maturity males begin to develop darker features. Spotted turtles are aquatic omnivores that inhabit a variety of semi-aquatic or in other words, shallow, fresh-water areas su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferdinand August Maria Franz Von Ritgen
Ferdinand August Maria Franz von Ritgen (11 October 1787 – 14 April 1867) was a German obstetrician and naturalist born in the Westphalian village of Wulfen (now part of Dorsten). He is remembered for instruction in the field of midwifery. He studied at Giessen and later worked as district medical officer at Stadtberge.Plett - Schmidseder by K. G. Saur Verlag GmbH & Company In 1814 he attained the chair of and at the |
Spotted Turtle
The spotted turtle (''Clemmys guttata''), the only species of the genus ''Clemmys'', is a small, semi-aquatic turtle that reaches a carapace length of upon adulthood. Their broad, smooth, low dark-colored upper shell, or carapace, ranges in its exact colour from black to a bluish black with a number of tiny yellow round spots. The spotting patterning extends from the head, to the neck and out onto the limbs. Sexually mature males have a concave plastron and a long, thick tail. By contrast, sexually mature females possess a flat plastron and have a tail notable shorter and thinner than mature males. Mature males also have a dark iris and face; females typically have a yellow or orange iris and a similarly coloured face that is distinctly lighter than males. Juveniles appear female-like in this regard and at maturity males begin to develop darker features. Spotted turtles are aquatic omnivores that inhabit a variety of semi-aquatic or in other words, shallow, fresh-water areas su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neogene
The Neogene ( ), informally Upper Tertiary or Late Tertiary, is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period million years ago ( Mya) to the beginning of the present Quaternary Period Mya. The Neogene is sub-divided into two epochs, the earlier Miocene and the later Pliocene. Some geologists assert that the Neogene cannot be clearly delineated from the modern geological period, the Quaternary. The term "Neogene" was coined in 1853 by the Austrian palaeontologist Moritz Hörnes (1815–1868). During this period, mammals and birds continued to evolve into modern forms, while other groups of life remained relatively unchanged. The first humans (''Homo habilis'') appeared in Africa near the end of the period. Some continental movements took place, the most significant event being the connection of North and South America at the Isthmus of Panama, late in the Pliocene. This cut off the warm ocean currents from the Pacific to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North America
North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. Because it is on the North American Plate, North American Tectonic Plate, Greenland is included as a part of North America geographically. North America covers an area of about , about 16.5% of Earth's land area and about 4.8% of its total surface. North America is the third-largest continent by area, following Asia and Africa, and the list of continents and continental subregions by population, fourth by population after Asia, Africa, and Europe. In 2013, its population was estimated at nearly 579 million people in List of sovereign states and dependent territories in North America, 23 independent states, or about 7.5% of the world's population. In Americas (terminology)#Human ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene is preceded by the Oligocene and is followed by the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by a single distinct global event but consist rather of regionally defined boundaries between the warmer Oligocene and the cooler Pliocene Epoch. During the Early Miocene, the Arabian Peninsula collided with Eurasia, severing the connection between the Mediterranean and Indian Ocean, and allowing a faunal interchange to occur between Eurasia and Africa, including the dispersal of proboscideans into Eurasia. During the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood Turtle
The wood turtle (''Glyptemys insculpta'') is a species of turtle endemic to North America. It is in the genus ''Glyptemys'', a genus which contains only one other species of turtle: the bog turtle (''Glyptemys muhlenbergii'' ). The wood turtle reaches a straight carapace length of , its defining characteristic being the pyramidal shape of the scutes on its upper shell. Morphologically, it is similar to the bog turtle, spotted turtle (''Clemmys guttata''), and Blanding's turtle (''Emydoidea blandingii''). The wood turtle exists in a broad geographic range extending from Nova Scotia in the north (and east) to Minnesota in the west and Virginia in the south. In the past, it was forced south by encroaching glaciers: skeletal remains have been found as far south as Georgia. It spends a great deal of time in or near the water of wide rivers, preferring shallow, clear streams with compacted and sandy bottoms. The wood turtle can also be found in forests and grasslands, but will rarely ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bog Turtle
The bog turtle (''Glyptemys muhlenbergii'') is a critically endangered species of semiaquatic turtle in the family Emydidae. The species is endemic to the eastern United States. It was first scientifically described in 1801 after an 18th-century survey of Pennsylvania. The smallest North American turtle, its carapace measures about long when fully grown. Although the bog turtle is similar in appearance to the painted or spotted turtles, its closest relative is actually the somewhat larger wood turtle. The bog turtle can be found from Vermont in the north, south to Georgia, and west to Ohio. Diurnal and secretive, it spends most of its time buried in mud and – during the winter months – in hibernation. The bog turtle is omnivorous, feeding mainly on small invertebrates. The bog turtle is the state reptile of New Jersey. An adult bog turtle weighs on average. Its skin and shell are typically dark brown, with a distinctive orange spot on each side of the neck. Considered thre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Pond Turtle
The Western pond turtle (''Actinemys marmorata''), also known commonly as the Pacific pond turtle is a species of small to medium-sized turtle in the family Emydidae. The species is endemic to the western coast of the United States and Mexico, ranging from western Washington state to northern Baja California. It was formerly found in Canada (in British Columbia), but in May 2002, the Canadian Species at Risk Act listed the Pacific pond turtle as being extirpated. Taxonomy and systematics Its genus classification is mixed. ''Emys'' and ''Actinemys'' were used among published sources in 2010. It was known by several names in the Indigenous languages of its range, including kʰá:wanaka: (Northeastern Pomo), kʰa:wana (Southern Pomo), and ʔaləšək (Lushootseed). Description The dorsal color of ''A. marmorata'' is usually dark brown or dull olive, with or without darker reticulations or streaking. The plastron is yellowish, sometimes with dark blotches in the centers of the scut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clemmys Hesperia
''Clemmys'' is a genus of turtles currently containing a single extant species, the spotted turtle ''(Clemmys guttata)''. Taxonomy In the past, several other species were included in the genus, including a number of fossil species. DNA analysis has restricted the genus to containing only the spotted turtle. Fossil species are now restricted to the Neogene of North America as far back as the Miocene. Extant species formerly in ''Clemmys'' *Wood turtle - now ''Glyptemys insculpta'' *Bog turtle - now ''Glyptemys muhlenbergii'' *Western pond turtle - now ''Actinemys marmorata'' Fossil species *†''Clemmys hesperia'' Hay, 1903 - Pliocene *†''Clemmys owyheensis'' Brattstrom & Sturn, 1959 - Miocene (Hemphillian The Hemphillian North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), typically set from 10,300,000 to 4,900,000 years BP. It is usually considered ...) References {{Tax ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliocene
The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58See the 2014 version of the ICS geologic time scale million years ago. It is the second and most recent epoch of the Neogene Period in the . The Pliocene follows the Epoch and is followed by the Epoch. Prior to the 2009 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clemmys Owyheensis
''Clemmys'' is a genus of turtles currently containing a single extant species, the spotted turtle ''(Clemmys guttata)''. Taxonomy In the past, several other species were included in the genus, including a number of fossil species. DNA analysis has restricted the genus to containing only the spotted turtle. Fossil species are now restricted to the Neogene of North America as far back as the Miocene. Extant species formerly in ''Clemmys'' *Wood turtle - now ''Glyptemys insculpta'' *Bog turtle - now ''Glyptemys muhlenbergii'' *Western pond turtle - now ''Actinemys marmorata'' Fossil species *†''Clemmys hesperia'' Hay, 1903 - Pliocene *†''Clemmys owyheensis'' Brattstrom & Sturn, 1959 - Miocene (Hemphillian The Hemphillian North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), typically set from 10,300,000 to 4,900,000 years BP. It is usually considered ...) References {{Tax ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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