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Topics related to "Mesozoic Era"

Mesozoic era
Mesozoic era [Gr.,=middle life], major division of geologic time (see Geologic Timescale , table) from 65 to 225 million years ago. Great crustal disturbances that marked the close of the Paleozoic and the beginning of the Mesozoic eras brought about drastic changes in the topography of North Amer... Read more
Cenozoic era
Cenozoic era , last major division of geologic time (see Geologic Timescale , table) lasting from 65 million years ago to the present. The Cenozoic is divided into the Tertiary (from 65 million years ago until 2 million years ago) and Quaternary (2 million years ago to the present) periods. Early i... Read more
ammonite
ammonite , one of a type of extinct marine cephalopod mollusk, related to the nautilus and resembling it in having an elaborately coiled and chambered shell. Unlike the interiors of nautilus shells, the chambers of ammonite shells display intricately shaped septa and sutures. The type included n... Read more
cephalopod
cephalopod , member of the class Cephalopoda, the most highly organized group of mollusks (phylum Mollusca ), and including the squids , octopuses , cuttlefish , and nautiluses . The class as a whole has become adapted for a free-swimming existence. Cephalopods are able to move about rapidly, a... Read more
Plesiosaurus
Plesiosaurus , genus of extinct predatory marine reptiles that arose in the Triassic period of geologic time and continued into the Jurassic and Cretaceous periods. Plesiosaurs became extinct at the close of the Mesozoic era. Fossilized skeletons of them have been found in North America, Europe, and... Read more
Geologic Timescale
Geologic Timescale Geologic Timescale Era Period Epoch Approximate duration (millions of years) Approximate number of years ago (millions of years)  Not an era but the time preceding the Cambrian. Cenozoic ... Read more
continental drift
continental drift geological theory that the relative positions of the continents on the earth's surface have changed considerably through geologic time. Though first proposed by American geologist Frank Bursley Taylor in a lecture in 1908, the first detailed theory of continental drift was put for... Read more
Karroo
Karroo or Karoo , the semiarid plateaus of South Africa. The Little Karroo, in Western Cape, is located N of the Langeberg and Outeniqua Ranges and extends c.200 mi (320 km) from east to west at an altitude of 1,000 to 2,000 ft (305-610 m). It is separated from the Great Karroo, in Western C... Read more
tuatara
tuatara or tuatera , lizardlike reptile , Sphenodon punctatus, last survivor of the reptilian order Rhynchocephalia, which flourished in the early Mesozoic era before the rise of the dinosaurs. Also called sphenodon, it is found on islands off the New Zealand coast and in Karori Wildlife Sanc... Read more
mammal
mammal an animal of the highest class of vertebrates, the Mammalia. The female has mammary glands, which secrete milk for the nourishment of the young after birth. In the majority of mammals the body is partially or wholly covered with hair; the heart has four chambers, and only the left aortic arc... Read more

Encyclopedia entries related to "Mesozoic Era"

Mesozoic era
Book article from: The Columbia Encyclopedia, Sixth Edition Mesozoic era [Gr.,=middle life...and the beginning of the Mesozoic eras brought about drastic changes...elevated during most of the era. The Appalachians were...Cordilleran geosyncline. The Mesozoic tectonic activity included...
Mesozoic
Book article from: World Encyclopedia Mesozoic Third era of geological time , extending from c. 248 to c. 65 million years ago...three periods: the Triassic , Jurassic , and Cretaceous . For most of the era, the continents are believed to have been joined into one huge landmass...
Cenozoic era
Book article from: The Columbia Encyclopedia, Sixth Edition Cenozoic era , last major division of geologic time...Following the disturbances of the late Mesozoic era , the geography of North America had by...land mammals were never as large as the Mesozoic dinosaurs, but many were larger than...
Endangered Species
Encyclopedia entry from: The Gale Encyclopedia of Science ...extinctions that occurred at the end of the Paleozoic and Mesozoic eras are noteworthy exceptions to this generalization...dinosaurs, about 65 million years ago at the end of the Mesozoic Cretaceous era.) Meteorite impacts notwithstanding, scientists...
continental drift
Book article from: The Columbia Encyclopedia, Sixth Edition ...believed that during the late Paleozoic and early Mesozoic eras, about 275 to 175 million years ago, all the continents...present continents began to split apart in the latter Mesozoic era about 100 million years ago, drifting to their present...
Cretaceous period
Book article from: The Columbia Encyclopedia, Sixth Edition ...third and last period of the Mesozoic era of geologic time (see Geologic...its flora and fauna brought the Mesozoic to a close. Historical Geology...greatest of the North American Mesozoic seas and extended all the way from...
Dinosaur
Encyclopedia entry from: The Gale Encyclopedia of Science ...dinosaurs Other extinct orders of Mesozoic-age reptiles Theories about the...million years ago, during the Mesozoic era. Dinosaurs ranged from chickensized...interval of geologic time known as the Mesozoic (middle life) era, often called...
Karroo
Book article from: The Columbia Encyclopedia, Sixth Edition ...citrus fruits and grains are raised. The name is also applied to the low scrub vegetation found in semiarid regions and also to a system of rocks laid down over central and southern Africa during the late Paleozoic and early Mesozoic eras.
Cretaceous
Book article from: The Oxford Companion to the Earth ...The third and youngest system of Mesozoic rocks takes its name from the Latin...65 Ma ago with the ending of the Mesozoic Era and the occurrence of a major extinction...seasonal than those earlier in the Mesozoic. Clear evidence of a more conspicuous...
Paleocene epoch
Book article from: The Columbia Encyclopedia, Sixth Edition ...the Tertiary period in the Cenozoic era of geologic time (see geologic timescale...Mts. that marked the end of the Mesozoic era continued throughout the Paleocene...small herbivores similar to their Mesozoic ancestors. By mid-Paleocene...

Dictionary entries related to "Mesozoic Era"

Mesozoic
Book article from: A Dictionary of Biology Mesozoic The geological era that extended from the end of the Palaeozoic era, about 248 million years ago, to the beginning of...Triassic , Jurassic , and Cretaceous periods. The Mesozoic era is often known as the Age of Reptiles as these...
era
Book article from: The Oxford Pocket Dictionary of Current English ...particular feature or characteristic: the era of glasnost. ∎  a system...noteworthy event: the dawn of the Christian era. ∎  Geol. a major division...is itself subdivided into periods: the Mesozoic era.
Broili, Ferdinand
Dictionary entry from: Complete Dictionary of Scientific Biography ...and investigated amphibian and reptile fossils of the Permian era. For nearly a decade he occupied himself extensively with...but conducted manyfaceted investigations of the Paleozoic and Mesozoic eras. At the beginning of his career he had been active outside...
Cretaceous
Book article from: A Dictionary of Biology ...final geological period of the Mesozoic era. It extended from about 144 million...time of greatest flooding in the Mesozoic. Angiosperm plants made their...land and in the early Cretaceous Mesozoic reptiles reached their peak. At...
erathem
Book article from: A Dictionary of Earth Sciences ...equivalent to the geologic-time unit era . An erathem comprises a number of...takes its name from the corresponding era, e.g. the Mesozoic Erathem would refer to the rocks laid down during the Mesozoic Era. At present it is a little used...
Pavlov, Aleksei Petrovich
Dictionary entry from: Complete Dictionary of Scientific Biography ...extinction through poor adaptation to life. Pavlov spent a number of years studying the Mesozoic deposits of the Russian platform and the Boreal phases of the Mesozoic era throughout northern Europe. In his master ’ s thesis of 1884 he had traced...
secondary
Book article from: The Oxford Pocket Dictionary of Current English ...transformer. 2. ( Secondary ) Geol. former term for Mesozoic . 3. Chem. (of an organic compound) having its functional...3. ( the Secondary ) dated Geol. the Secondary or Mesozoic era. DERIVATIVES: sec·ond·ar·...
Cenozoic
Book article from: A Dictionary of Biology ...Cainozoic ; Kainozoic ) The geological era that began about 65 million years...extends to the present. It followed the Mesozoic era and is subdivided into the Tertiary...flowering plants also flourished. The era saw the formation of the major mountain...
Paleozoic
Book article from: The Oxford Pocket Dictionary of Current English ...Geol. of, relating to, or denoting the era between the Precambrian eon and the Mesozoic era. Formerly called primary . ∎  [as n. ] ( the Paleozoic ) the Paleozoic era or the system of rocks deposited during it.
Permian
Book article from: A Dictionary of Biology Permian The last geological period in the Palaeozoic era. It extended from the end of the Carboniferous period, about 286 million years ago, to the beginning of the Mesozoic era, about 248 million years ago. It was named by the British...

Related newspaper, magazine, and trade journal articles from HighBeam Research

A really long time ago.(By the Numbers)(dinosaurs)(Mesozoic Era)
Magazine article from: Appleseeds; 1/1/2005; ; 700+ words ; ...eras. They are the Paleozoic, Mesozoic, and Cenozoic. Eras are divided into smaller units...dinosaurs came and went during the Mesozoic Era. Different dinosaurs (and...this era. At the end of the Mesozoic Era, dinosaurs "checked out...
DENIZENS OF THE MESOZOIC COMING TO STERNBERG MUSEUM: MAJOR EXHIBIT BUILT FROM PRIVATE COLLECTION FEATURES SPECIMENS FROM ALL PRIMARY DINOSAUR GROUPS OF 185-MILLION-YEAR ERA
News Wire article from: US Fed News Service, Including US State News; 4/17/2008; 700+ words ; ...release: Representatives of the Mesozoic Era of geologic time, including the...rex cetera: Dinosaurs and Other Mesozoic Monsters," opening May 24 and...185-million-year span of the Mesozoic Era, comprising the Triassic...
PALEONTOLOGISTS DISCOVER NEW MAMMAL FROM MESOZOIC ERA
News Wire article from: US Fed News Service, Including US State News; 3/14/2007; 700+ words ; ...125 million years ago during the Mesozoic Era, in what is now the Hebei Province...Yixian Formation and is the first Mesozoic mammal recovered from Hebei. The...discoveries of exquisitely preserved Mesozoic mammals from China have built the...
Maine volcanoes erupted in Mesozoic Era
Newspaper article from: Sun-Journal Lewiston, Me.; 7/27/2006; 700+ words ; ...ancient volcanic rocks are preserved in many parts of Maine, but there have not been any active volcanoes since the Mesozoic Era. An interesting aspect of Maine's bedrock is that it records a wide array of geologic environments that have been...
Crayfish existed in Australia as far back as the Mesozoic Era
News Wire article from: The Hindustan Times; 2/7/2008; 556 words ; ...that crayfish existed on the continent as far back as the Mesozoic Era. Martin, a senior lecturer in environmental studies...environmental studies at Emory University. During that era, diverse plants grew in what is today Antarctica and...
JURASSIC IN PLASTIC DINOSAURS WEREN'T THIS HOT IN THE MESOZOIC ERA.(CAPITAL REGION)
Newspaper article from: Albany Times Union (Albany, NY); 6/6/1993; 700+ words ; ...years. But dinosaurs are hot, and are selling everything from movie tickets to boxer shorts to french fries. The wave of Mesozoic merchandising precedes Friday's opening of "Jurassic Park," a $56 million-plus Steven Spielberg flick about dinosaurs...
Patagonian Mesozoic Reptiles.(Brief article)(Book review)
Newspaper article from: Internet Bookwatch; 8/1/2007; 484 words ; ...Rodolfo A. Coria, Patagonian Mesozoic Reptiles is an amazing scientific...the Patagonian region during the Mesozoic era. Numerous black-and-white...context of its subject, Patagonian Mesozoic Reptiles is a technical yet utterly...
Fault reactivation in the Junggar region, northwest China: The role of basement structures during Mesozoic-Cenozoic compression
Magazine article from: Journal of the Geological Society; 1/1/1997; ; 700+ words ; ...faults have propagated into the Mesozoic-Cenozoic cover. Keywords: China...continental crust, because recurrent Mesozoic and Cenozoic compressional deformation...surrounding regions (Fig. 1). In the Mesozoic era, subduction of Palaeo-Tethyan...
'Mesozoic Cow' Rises from the Sahara Desert
Transcript from: NPR Morning Edition; 11/16/2007; ; 700+ words ; ...Morning Edition 11-16-2007 'Mesozoic Cow' Rises from the Sahara Desert...more on what's being called the Mesozoic Cow. CHRISTOPHER JOYCE: Paleontologist...ten million years ago during the Mesozoic era. Sereno spent years piecing together...
BEST BET: Mesozoic music
Newspaper article from: Charleston Gazette; 4/12/2007; 260 words ; The Mesozoic era comes to life in the final West Virginia Symphony Family Series concert of the season at 11 a.m. Saturday at the Clay Center...