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Parapronorites

Classification

    Phylum:  
Mollusca
    Class:  
Cephalopoda
    Order:  
Prolecanitida
    Superfamily:  
Medlicottioidea
    Family:  
Pronoritidae
    Formal Genus Name and Reference:  
Parapronorites GEMMELLARO, 1887, p. 61
    Type Species:  
P. Konincki, OD


Images

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Fossil Image
Fig. 125, 1a-d. *P. konincki, Sosio limestone, Wordian, Sicily, lectotype (herein, a), MGUP 101A of Gemmellaro (1887, pl. 5, 16), and paralectotype ( b-d ), MGUP 101B of Gemmellaro (1887, pl. 5, 17-18), X 1 (new).--Fig. 125, 1 e-f. P. rectus Leonova in Leonova & Dmitriev, 1989, Bolorian, Pamir, e, diameter at 35 mm, f, diameter at 40 mm (Leonova & Dmitriev, 1989).


Synonyms



Geographic Distribution

Italy (Sicily), Russia (Southern Urals), Ukraine (Crimea), Tajikistan (Pamir), Oman, China (Guizhou, Guangxi, Xizang, Xinjiang), Thailand (Muak Lek), Indonesia (Timor)


Age Range

    Beginning Stage in Treatise Usage:  
Cisuralian (Artinskian)
    Beginning International Stage:  
Artinskian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
290.51
    Ending Stage in Treatise Usage:  
Guadalupian (Wordian)
    Ending International Stage:  
Wordian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
264.34


Description

Advanced neopronoritins characterized by subequal bidentition of both prongs of external lateral lobe; ventral four to virtually all eight adjacent umbilically derived lobe pairs also bidentate. Internal suture inadequately known (except for P. rectus l eonova in l eonova & d mit R iev , 1989), but mature D and I probably bidentate throughout, and umbilical elements simple and number one or two less than in external suture. Five named species (all similar, perhaps conspecific).




References



Museum or Author Information

Leonova & Dmitriev, 1989