PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Staurograptus dichotomus

Taxonomy

Staurograptus dichotomus was named by Emmons (1855). It is the type species of Staurograptus.

Year	Name and author
1855	Staurograptus dichotomus Emmons p. 109 figs. pl. 1, fig. 21
1962	Staurograptus dichotomus apertus Jackson and Lenz p. 37
1974	Staurograptus tenuis Jackson figs. pl. 5, fig. 1; text-fig. 1G, H

Time interval	Ma	Country or state	Original ID and collection number
Tremadoc	486.4 - 477.1	Canada (Yukon)	Staurograptus dichotomus (203944 203945 203946 203953)
Tremadoc	486.4 - 477.1	Argentina	Staurograptus dichotomus (9021)