Jump to content

Cheirurid ID


aek

Recommended Posts

Would this specimen be described as Cheirurus cf. niagarensis, or Ceraurus hydei, Weller?  Sugar Run formation.

 

thumbnail-2.thumb.jpg.5608dda39b0e6d529ff496b5b5bdd24d.jpg

Link to comment
Share on other sites

Unfortunately the pygidium is the primary feature for differentiating Hadromeros and Cerauromeros.

 

Here is the updated taxonomy:

 

Holloway 1980 synonymized Cheirurus welleri with Ceraurus niagarensis (explaining the pygidium is not Cheirurus) and placed it in the genus Hadromeros.

 

Holloway, D.J. 1980

Middle Silurian Trilobites from Arkansas and Oklahoma, U.S.A.

Palaeontographica Abt.A, 170:1-85

 

 

Přibyl et al. 1985 erected the genus Cerauromeros and placed Ceraurus hydei as the type species.

 

Přibyl, A., Vaněk, J., Pek, I. 1985

Phylogeny and Taxonomy of Family Cheiruridae (Trilobita).

Acta Universitatis Palackianae Olomucensis Facultas rerum Naturalium. Geographica-Geologica, 83:107-193

 

image.png.72f3078a66175e29de11501cf33ff073.png

  • I found this Informative 3

image.png.a84de26dad44fb03836a743755df237c.png

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...