My unidentified arrowheads...

[HISPAN]

Hello friends!
I have these arrowheads USA for years, but does not idea what belong to cultural period, five are broken and a nearly complete. when they were bought in a box ( found in USA,) but nothing more.
If anyone can allude to the ID you'll be very thankful, I collect Indian artifacts from South America, but these North arrowheads I have no idea ..
Greetings!

 

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[Jonzer]

What part of America were these found in?
There are many similar types with different names.
The name depends on the location found.

 

[HISPAN]

What part of America were these found in?
There are many similar types with different names.
The name depends on the location found.

only put in the box "found in the USA" . thanks anyway.