last revised 15 July 2007 by S. M. Gon III

Superfamily Bathyuroidea
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Compare the pictorial approach above with the descriptive narrative below:

Superfamily Bathyuroidea
Cephalon: convex, with distinct border of varying width, opisthoparian sutures; glabella well defined, subparallel or gently expanding/tapering forward, with 3 or fewer lateral furrows, sometimes faint or absent; eyes medium to large, placed opposite or behind center of glabella; hypostoma typically natant, but secondarily conterminent in advanced Bathyuridae; genal spines typically present, sometimes broad.
Thorax: 8-12 segments, pleurae typically with distinct furrows.
Pygidium: subisopygous to micropygous, gently to moderately convex, no border furrow, axis of varying length (absent in Celmidae), sometimes prolonged into post-axial ridge or axial spine, often 3 axial rings + terminal; exoskeleton sometimes ornamented variously with pits, tubercles, small spines, or terraces.
Families: Bathyuridae, Celmidae, Dimeropygidae, Glaphuridae, Holotrachelidae, Lecanopygidae, Telephinidae, Toernquistiidae.
Representative Genera: Bathyurus, Carolinites, Celmus, Dimeropyge, Glaphurus, Goniotelus, Holotrachelus, Lecanopyge, Platyantyx, Telephinus, Toernquistia.

Here are some representative Bathyuroidea

Bathyurus Platyantyx Goniotelus Telephinus Carolinites
        Your eyes remind me of a Remopleuroid that I once knew... Speak for yourself, plankton eater!

PROETIDA includes three Superfamilies:
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Walking Trilobite animation ©2000 by S. M. Gon III
All line drawings this page ©1999 - 2007 by S. M. Gon III