07375 - Nicely Preserved 2.14 Inch Hollardops merocristata Middle Devonian Trilobite Goniopygus Bulletin of the American Museum

Bulletin of the American Museum of Natural History 300:1-318

Precious tooth of Squalicorax pristodontus (Crow Shark) from the phosphate deposits of the Ouled Abdoun Basin (Morocco)

Rigorous comparative studies with other published similar rests would be necessary to be able to perform a reliable diagnosis

and Andrzej Radwański

Their fossils are a good indicator of paleoenvironments related with deltas and estuaries

07375 - Nicely Preserved 2.14 Inch Hollardops merocristata Middle Devonian Trilobite Goniopygus Bulletin of the American MuseumNicely 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,