Home Plot Diversity Curves Tree of Life About Admin Login

Welcome to the Treatise on Invertebrate Paleontology!

Please enter a genera name to retrieve more information.

Search By:
and Class
and Order

Plagiolaria

Classification

    Phylum:  
Unknown
    Class:  
Trilobata
    Order:  
Phacopida
    Superfamily:  
Phacopacea
    Family:  
Phacopidea
    Formal Genus Name and Reference:  
Plagiolaria KEGEL, 1952 [pro Plagiops Kegel, 1932 (non Аmyot, 1846, nec Townsend, 1912, nec Cresson, 1918]
    Type Species:  
Phacops plagiophthalmus Reinh. RICHTER, 1865


Images

(Click to enlarge in a new window)

Fossil Image
Fig. 367, 2. *P. plagiophthalmus (Reinh. Richter), TentaculitenSchiefer, Thuringia, 2 a-c, ceph., dorsal, anterior, side, x4 (415)."


Synonyms



Geographic Distribution

M.Dev., Ger.


Age Range

    Beginning Stage in Treatise Usage:  
M.Dev.
    Beginning International Stage:  
Eifelian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
394.3
    Ending Stage in Treatise Usage:  
M.Dev.
    Ending International Stage:  
Givetian
    Fraction Up In Ending Stage:  
0
    Ending Date:  
378.9


Description

Similar to Cryphops, with generally broad cephalic border but very narrow below frontal lobe of glabella, border furrow in front of eyes faint to obsolete, glabella subtrapezoidal in outline, with anterior margin a gently curved line, "intercalating ring" flat, 1p lobes slightly detached, transglabellar furrow connecting 1p furrows nearly straight, clearly visible, occipital ring about as broad as "intercalating ring", eyes of cryptophthalmus pattern on somewhat rounded knob that is separated posteriorly by broad deep furrow extending from axial furrows to lateral border furrows, vincular furrow continuous along whole subcephalic edge. Pygidium transversely elongate, with 6 distinct axial rings, pleural fields with 5 pairs of ribs that indicate border by fading away distally.




References



Museum or Author Information