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Fossil specimen : YORYM YORYM : YM 743 – Undifferentiated Type

Taxonomic Group

Kingdom Animalia

  Phylum Mollusca

    Class Cephalopoda

      Order Ammonitida

Fossil Name Olcostephanus (Polyptychites) gravesiformis Pavlow and Lamplugh, 1892
Type Status Undifferentiated Type
Name History

Olcostephanus (Polyptychites) gravesiformis Pavlow and Lamplugh, 1892

Registration No. YORYM : YM 743
Collector Name not available
Donor or Associated Person Name not available
Held By Yorkshire Museum
Country England
Locality Speeton
Grid Reference Not available
Rock Unit Speeton Clay
Biozone Not available
Geological Age

Cretaceous Period (Cretaceous Period) (66 – 145 Ma B.P.)


PAVLOW, A.P. & LAMPLUGH, G.W., 1892. Argiles de Sppeton et leurs equivalents. Byull. Mosk. Obshch. Ispyt. Prir n.s. 5: 181-276; 455-570, pls. IV-VIII, XIII-XVII (separate copy issued as pp. 1-212, pls. I-XI).

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