The figure below shows the distribution of samples containing the trilobite Flexicalymene.

[ Flexicalymene distribution ]

Flexicalymene is a common trilobite in the MRV strata.

[ Flexicalymene ]

Flexicalymene Shirley, 1936 [*Calymene caractaci Salter, 1865] [=Orimops Rafinesque, 1832]
Glabella with 3 pairs of lateral lobes; axial furrows contracted slightly opposite 1p and 2p lateral furrows; preglabellar furrow broad; eye lobes opposite, ahead, or behind 2p glabellar lobes. Hypostoma without raised area in center of anterior lobe of middle body. Thorax with 12 or 13 segments. Pygidium with deep pleural furrows and shallow interpleural grooves extending close to margins of pleural regions.
M. Ord. - U. Ord., ?Sil., Europe, North America
Family Calymenidae Burmeister, 1843
Order Phacopida Salter 1864

NOTE: The classification of trilobites has undergone revisions since the 1959 publication of Volume O of the Treatise. The classification presented here only represents a starting point for the search for further information.

Treatise on Invertebrate Paleontology, O452.