Protopteridales

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References

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Martin Luther King, Jr.

Why We Celebrate MLK Day

Pluto. Crop of asset: 172304/IC code: pluto0010 at 270 degrees. The Changing Faces of Pluto. Most detailed view to date of the entire surface of the dwarf planet Pluto, constructed from multiple NASA Hubble Space Telescope photographs 2002-03.

Wee Worlds: Our 5 (Official) Dwarf Planets

jeans, denim, pants, clothing

Why Do We Say “A Pair of Pants”?

President Barack Obama signs the White House Initiative on Educational Excellence for African Americans Executive Order in the Oval Office, July 26, 2012

What Is an Executive Order?

magic 8 ball

Where Did the Idea for the Magic 8 Ball Come From?

Planet Earth and lunar moon from space

Where Did the Moon Come From?

Ruminant. Deer. Red deer. Cervus elaphus. Buck. Stag. Antlers.

9 of the World’s Deadliest Mammals

Protopteridales

order of preferns

Learn about this topic in these articles:

description

In prefern
…the prefern group are the Protopteridales and Coenopteridales.
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