![](http://www.alamy.com/thumbs/6/A24A747E-5A33-4D8A-BCB6-EC0519ECF634/MCNPGJ.jpg)
. Scaumenacia curta, Whiteaves; unteres Über- devon, Kanada. Dipterus macropterus, Traquair; oberes Unter' devon, Schottland.
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Keywords: ., bookcentury1900, bookdecade1910, bookpub, booksubjectpaleontology