. Annual report of the regents of the university of the state of New York on the condition of the State Cabinet of Natural History and the historical and antiquarian collection annexed thereto. , iel EXPLANATION OF PLATES. 205 PLATE X. DiKELOCEPHALUS SPINIGER. Fig. 1. Glabella and part of the fixed cheeks, showing the base of a spine on thoocci])ital ring.«? 2. An imperfect pygidium, associated in the same stone with the head. DiKELOCEPHALUS, «« 3. The cheek of a species which has not been identified : from Lake Pepin. DiKELOCEPHALUS 4. The glabella and p
. Annual report of the regents of the university of the state of New York on the condition of the State Cabinet of Natural History and the historical and antiquarian collection annexed thereto. , iel EXPLANATION OF PLATES. 205 PLATE X. DiKELOCEPHALUS SPINIGER. Fig. 1. Glabella and part of the fixed cheeks, showing the base of a spine on thoocci])ital ring.«? 2. An imperfect pygidium, associated in the same stone with the head. DiKELOCEPHALUS, «« 3. The cheek of a species which has not been identified : from Lake Pepin. DiKELOCEPHALUS 4. The glabella and part of the fixed cheek.«* 5. A pygidium occurring in the same association; and the same is found on the specimens with fig. 4.«« 6. A part of a thoracic segment of this species? from the same block on which the glabella occurs.«• ?7 Sc 8. Imperfect movable cheeks, apparently belonging to D. misa; occurringin beds where no other species of the genus are known. DiKELOCEPHALUS MINNESOTENSIS, vav. Fig 9. The glabella and fixed cheeks, having the frontal limb slightly extended inthe centre : Stillwater. DiKELOCEPHALUS 10. A head, restored from actual specimens o
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectscience, bookyear1853
