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Peronopsis

Classification

    Phylum:  
Unknown
    Class:  
Trilobata
    Order:  
Agnostida
    Superfamily:  
Agnostoidea
    Family:  
Peronopsidae
    Formal Genus Name and Reference:  
Peronopsis Hawle & CORDA, 1847, p. 115
    Type Species:  
Battus integer Beyrich, 1845, p. 44, OD, lectotype (Рек & VANĚK, 1971, p. 270, pl. 1, fig. 6), Beyrich Collection 86(530), HMB, Berlin


Images

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Fossil Image
Fig. 229,1a,b. *P. integra (BEYRICH ), Middle Cambrian (Paradoxides gracilis Zone), Czech Republic (Jince, Bohemia); a, topotype, exoskeleton, SBNM Br-190/56, × 10 (Horny & Bastl, 1970); b, lectotype, pygidium, HMB Beyrich Collection 86(530), ×10.7 (Pek & Vanek, ˇ 1971, pl. 1, fig. 6–7).


Synonyms

Mesospheniscus


Geographic Distribution

Sweden; Czech Republic, P. (P.) gracilis Zone.


Age Range

    Beginning Stage in Treatise Usage:  
Middle Cambrian
    Beginning International Stage:  
Cambrian Stage 4
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
512.3
    Ending Stage in Treatise Usage:  
Middle Cambrian
    Ending International Stage:  
Guzhangian
    Fraction Up In Ending Stage:  
0
    Ending Date:  
498.75


Description

nonscrobiculate, narrow border in cephalon, wide, flat border in pygidium, median preglabellar furrow absent, glabella with subquadrate to semiovate anterior lobe, posterior lobe with glabellar node a short distance behind F2, pygidium nonspinose or bispinose, axis strongly convex, broadly ogival, F1 weak, F2 weak or absent, straight, posterior lobe broadly ogival, narrowly rounded to acuminate posteriorly, with a weakly developed transverse depression at about midlength




References

Hawle, Ignaz, \& A. J. C. Corda. 1847. Prodrom einer Monographie der böhmischen Trilobiten. Abhandlungen Koeniglichen Boehmischen Gesellschaft der Wissenschaften. J. G. Calve. Prague. 176 p., 7 pl .


Museum or Author Information

Horný & Bastl, 1970, Pek & Vaněk, 1971