Systematics of the Ordovician trilobites Ischyrotoma and Dimeropygiella, with species from the Type Ibexian area, western U.S.A.

J. M. Adrain, S. R. Westrop, E. Landing, and R. A. Fortey

2001

Article

Journal of Paleontology 75(5):947-971

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Taxa discussed in this work:

• Dimeropygiella fillmorensis
• Dimeropygiella mccormicki
• Ischyrotoma juabensis
• Ischyrotoma stubblefieldi
• Ischyrotoma wahwahensis

Taxonomy:

• Ischyrotoma stubblefieldi belongs to Ischyrotoma - Ingham (1986)
• Dimeropygiella belongs to Dimeropygidae - Adrain et al. (2001)
• Ischyrotoma borealis belongs to Ischyrotoma - Adrain et al. (2001)
• Ischyrotoma juabensis belongs to Ischyrotoma - Adrain et al. (2001)
• Dimeropygiella blanda belongs to Dimeropygiella - Adrain et al. (2001)
• Ischyrotoma wahwahensis belongs to Ischyrotoma - Adrain et al. (2001)
• Dimeropygiella caudanodosa belongs to Dimeropygiella - Adrain et al. (2001)
• Dimeropygiella ovata belongs to Dimeropygiella - Adrain et al. (2001)
• Dimeropygiella fillmorensis belongs to Dimeropygiella - Adrain et al. (2001)
• Dimeropygiella mccormicki belongs to Dimeropygiella - Adrain et al. (2001)