Kevin Cummings asked about Devonian Gonioceras from Morocco. Gonioceras Hall, 1847 is a large, straight-shelled actinoceratoid cephalopod. The Treatise on Invertebrate Paleontology (part K, p. K208) gives this diagnosis by Curt Teichert (1964): "Large shells, ventral side rather flat, dorsal side moderately convex, 2 sides meeting laterally at acute angle; aperture contracted; sutures with broad dorsal and ventral lobes, more narrowly rounded dorsolateral and ventrolateral saddles and pointed lateral lobes. Siphuncle subcentral; septal necks armenoceroid, brims very short; segments short; endosiphuncular canal system straight. Cameral deposits rare." Range: Middle Ordovician, North America, Europe, Eurasia (Urals and perhaps East Asia). Some of these features can only be seen in section, i.e., by slicing the specimen. Which experts on fossil cephalopods do very frequently. The diagnosis for family Gonioceratidae Hyatt, 1884 is slightly more comprehensible: "Large, straight shells, strongly depressed in cross section, with flat ventral and dorsal sides and angular flanks; sutures sinuous. Siphuncles comparatively small, subventral to subcentral." Range: Middle to Upper Ordovician. As the actinoceratoids ranged from Middle Ordovician to Upper Carboniferous, I suspect that these Devonian fossils have been misidentified, but may belong to the same order. Andrew K. Rindsberg Geological Survey of Alabama