07609 - Top Quality 2.60 Inch Hollardops merocristata Middle Devonian Trilobite Squalicorax pristodontus It is an exceptional piece

It is an exceptional piece due to its youthful size

Rare limb bones of an unidentified mosasaur species

United States ( Alabama

Anetoceras medvezhense

This species belongs to the Hexanchidae family

07609 - Top Quality 2.60 Inch Hollardops merocristata Middle Devonian Trilobite Squalicorax pristodontus It is an exceptional pieceNicely well preserved and prepared specimen. Nice eyes facets. Hollardops sp, Morzadec 1997 (trilobite) Trilobita Phacopida Acastidae Synonyms: Modellops Lieberman and Kloc 1997 (no. 259054), Philipsmithiana Lieberman and Kloc 1997 (no. 259046) Parent taxon: Acastidae according to P. A. Jell and J. M. Adrain 2002 See also Lieberman and Kloc 1997 Sister taxa: Acastava, Acaste, Acastella, Acastellina, Acastocephala, Acastoides, Acastopyge, Alcaldops,