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Pennsylvanian    音标拼音: [p,ɛnsɪlv'eniən]
a. Pennsylvania的
n. Pennsylvania人

Pennsylvania的Pennsylvania人

Pennsylvanian
n 1: from 310 million to 280 million years ago; warm climate;
swampy land [synonym: {Pennsylvanian}, {Pennsylvanian period},
{Upper Carboniferous}, {Upper Carboniferous period}]
2: a native or resident of Pennsylvania [synonym: {Pennsylvanian},
{Keystone Stater}]


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  • Pennsylvanian (geology) - Wikipedia
    The Pennsylvanian ( ˌ p ɛ n s əl ˈ v eɪ n i ən pen-səl-VAYN-i-ən, [4] also known as Upper Carboniferous or Late Carboniferous) is, on the ICS geologic timescale, the younger of two subperiods of the Carboniferous Period (or the upper of two subsystems of the Carboniferous System)
  • Pennsylvanian Train | Amtrak
    The Pennsylvanian travels daily between New York City and Pittsburgh and connects in Pittsburgh with Floridian train 40, to and from Cleveland, Toledo, Chicago and intermediate points
  • Pennsylvanian Period—323. 2 to 298. 9 MYA - U. S. National Park Service
    By the Pennsylvanian Period, the evolution of terrestrial plants and animals had advanced to the point where true forests were developed in lowland, coastal sites The presence of extensive, lush, swampy forests characterizes North America during the Pennsylvanian Period
  • Pennsylvanian Period - Encyclopedia. com
    The term Pennsylvanian is a U S coinage based on the frequency of rocks of this period in the state of Pennsylvania; internationally, the terms late Carboniferous Period or Silesian Period are preferred
  • Pennsylvanian Subperiod | Carboniferous, Coal Age, Flora | Britannica
    Pennsylvanian Subperiod, second major interval of the Carboniferous Period, lasting from 323 2 million to 298 9 million years ago The Pennsylvanian is recognized as a time of significant advance and retreat by shallow seas
  • Pennsylvanian - Simple English Wikipedia, the free encyclopedia
    The Pennsylvanian is the Upper Carboniferous epoch in the strata of North America It comes after (above) the Mississippian, and before the Permian The Pennsylvanian started about 323 million years ago (mya), and ended about 299 mya
  • Pennsylvanian Period - Geology Page
    The Pennsylvanian is, in the ICS geologic timescale, the younger of two subperiods (or upper of two subsystems) of the Carboniferous Period It lasted from roughly 323 2 ± 1 3 to 298 9 ± 0 8 Ma (million years ago)
  • Pennsylvanian (train) - Wikipedia
    The Pennsylvanian is a 444-mile (715 km) daily daytime Amtrak train running between New York City and Pittsburgh via Philadelphia The trains travel across the Appalachian Mountains, through Pennsylvania's capital Harrisburg, the Pennsylvania Dutch Country, suburban and central Philadelphia, and New Jersey en route to New York The entire train
  • Pennsylvania - Wikipedia
    Pennsylvania, [b] officially the Commonwealth of Pennsylvania, [c] is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States
  • Pennsylvanian - Wikipedia
    Pennsylvanian may refer to: A person or thing from Pennsylvania; Pennsylvanian (geology), a geological subperiod of the Carboniferous Period; Pennsylvanian, an Amtrak train





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