Difference between Greenops and Bellacartwrightia?

[FOH]

This may seem like an obvious question but I’ve always wondered what specific structural differences are present between a Greenops and a Bellacartwrightia. Any help would be appreciated!

[piranha]

Here you go:

 

Lieberman, B.S., Kloc, G.J. 1997

Evolutionary and Biogeographic Patterns in the Asteropyginae (Trilobita, Devonian) Delo, 1935.

American Museum of Natural History Bulletin, 232:1-127  PDF LINK

[FOH]

1 minute ago, piranha said:

Here you go:

 

Lieberman, B.S., Kloc, G.J. 1997

Evolutionary and Biogeographic Patterns in the Asteropyginae (Trilobita, Devonian) Delo, 1935.

American Museum of Natural History Bulletin, 232:1-127  PDF LINK

Great! Thanks

[piranha]

The Lieberman & Kloc monograph established the genus Bellacartwrightia.

 

Here is a comparison chart from:

 

Whiteley, T.E., Kloc, G.J., Brett, C.E. 2002
The Trilobites of New York.
Cornell University Press, 380 pp.