Japan also has three endemic plant families (Sciadopityaceae, Glaucidiaceae, and Pteridophyllaceae), and about 20 endemic genera, seven of which are represented only by single species.    From Wordnik.com.  [Biological diversity in Japan] Reference

Sciadopityaceae, and is a living fossil, having been present in the fossil record for.    From Wordnik.com.  [Museum Blogs] Reference

Sciadopitys verticillata (Sciadopityaceae).    From Wordnik.com.  [Museum Blogs] Reference

Sciadopityaceae are the source of Baltic amber.    From Wordnik.com.  [Museum Blogs] Reference