Extinct species examples

Páginas: 5 (1025 palabras) Publicado: 14 de marzo de 2012
Extinct species

Tyrannosaurus Rex: Was one of the largest land carnivores of all time. Bipedal carnivore with a massive skull balanced by a long, heavy tail.
Thylacine: Also know Tasmanian Tiger. Is consider the largest known carnivorous marsupial of modern times. Intensive hunting encouraged by bounties is generally blamed for its extinction. Another possible cause disease. Endemic speciessuch as the Tasmanian Devil
Irish Deer: Consider the largest deer that ever lived. Use to habit Eurasia, from Ireland to east of Lake Baikal, particular for having the largest antlers of any known cervid. Antlers maximum of 3.65 meter.
Suggested hunting by man was a contributing factor but evidence for overhunting is equivocal, and as a continental species, it would have co-evolved with humansthroughout its existence and presumably have adapted to their presence.
Caspian Tiger: Also know as Persian tiger. Westernmost subspecies of tiger. Found in Iran, Iraq, Afghanistan, Turkey, Mongolia, Kazakhstan, Caucasus, Tajikistan, Turkmenistan and Uzbekistan.
Of all the tigers known to the world, the Caspian tiger was the third largest. Body: quite stocky and elongated with strong legs, bigwide paws and unusually large claws. Male Caspian tigers were very large and weighed 169-240 kg.
Dodo: Raphus cucullatus.
Related to pigeons and doves. Characteristics stood about a meter tall. It extinction was directly attributable to human activity. The adjective phrase "as dead as a dodo" means undoubtedly and unquestionably dead. The verb phrase "to go the way of the dodo" means to becomeextinct or obsolete, to fall out of common usage or practice, or to become a thing of the past.
Ilex Ternatiflora: An extinct a species of plant in the Aquifoliaceae family. It was endemic to Cuba.
Licania caldasiana: was a species of plant in the Chrysobalanaceae family. It was endemic to Colombia.
Saxonipollis: Saxonipollis saxonicus is an extinct plant species. It was possibly carnivorous. Itis known only from fossilised pollen found in Eocene deposits of East Germany. S. saxonicus was possibly a precursor to Aldrovanda, or a close relative to its precursor.
Viola cryana: Cry Violet, also known as Cry Pansy. Plant species from the violet genus Viola. Endemic to the French Department Yonne. Vioala cryana was discovered in 1860 but first described in 1878. Not higher than 12 cm. Had aglabrous stem. The stipule was cut and had an entire central lobe. The petals were light violet. The flowering period was from May to June. Due to the habitat destruction because of the limestone quarrying and due to overexploitation by plant collectors it was thought to be extinct in the wild by 1930.
Tilia johnsoni: Tilia johnsoni is an extinct species of linden tree that was native toWashington state. 49 million years ago during the Early Eocene.

Endangered species
Red Wolf (Canis rufus): The red wolf is classified as a member of the order Carnivora (Carnivores) family of Canidae. The red wolf is classified as a critically endangered species due to the estmation that its population consists of less than fifty mature red wolves.
African Elephant (Loxodonta africana): Classified asa member of the order Proboscidea (Elephants). The male stands up to 10 feet high to its shoulder, and weighs up to 6 tons. It is classified as an endangered species due to a reduction of at least 50% of the african elephant population over the last three generations based on an index of abundance. Hunting of the african elephant is now banned in several countries, but poaching for ivory stillexists.
Anatolian Leopard (Panthera pardus tulliana): Classified as a member of the order Carnivora (Carnivores). It is classified as a critically endangered species due to an estimated population of less than 250 mature individuals and a continuing decline in numbers of mature individuals and population structure in the form of severely fragmented populations. Anatolian leopards can be found in...
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