. College collection of palaeontology. DICOTYLEDONS. 167 in strata of every age from the Devonian up through the Carboniferous, Trias, Jura, Cretaceous and Tertiary. In this latter period, and at the present day, the genus has had its maximum of development. This perfectly pre- served cone is from the Lower Miocene Tertiary beds of Carbonne, France. Size, 6x3. No. 535. [1206, Cast]. Dammarites , Sternb. A conifer from tlie Inferior Oolite, Burton, Somerset, England. Size, 6 X 6. FAMILY CYCADACE^. No. 536. [1204, Cast]. Cycadoidea megalophylla, Buckl. Syn. Mantellia nidiformis. Brongn. This sho
. College collection of palaeontology. DICOTYLEDONS. 167 in strata of every age from the Devonian up through the Carboniferous, Trias, Jura, Cretaceous and Tertiary. In this latter period, and at the present day, the genus has had its maximum of development. This perfectly pre- served cone is from the Lower Miocene Tertiary beds of Carbonne, France. Size, 6x3. No. 535. [1206, Cast]. Dammarites , Sternb. A conifer from tlie Inferior Oolite, Burton, Somerset, England. Size, 6 X 6. FAMILY CYCADACE^. No. 536. [1204, Cast]. Cycadoidea megalophylla, Buckl. Syn. Mantellia nidiformis. Brongn. This short, spheroidal trunk prob- ably belonged to a Cycad,—a tropical plant related to the Conifers in struc- ture and fructification, but totally different in habit. It supported a tuft of large, pinnated, palm-like leaves; and the surface is covered with rhomboidal scars formed by the attachment of the leaf-stalks. Its shape has caused it to be named "Crcnc's Nest" by the quarrymen. Neither leaves nor fruit have been found. From the Purbeck beds (Wealden), Isle of Portland, England, and now in be Ward Collection, University of Rochester. Size, 12 xU2. No. 537. Trigonocarpus Noeggerathi, Brongt. Genus of nut-like fruits, ovoid, 3-6 ribbed. This species is ovate and tri- costate. They are doubtfully referred to the Cycads. Carboniferous, Saar- bi'uck, Rhenish Prussia. No. 538. Trigonocarpus tricuspidatus, Newb. Nut elliptical in outline. 3-costate, with a bottle-shaped nucleus. Coal Measures, Mahoning Co., Ohio. No. 539. Carpolithes Brandonensis, Lesq. A fruit of unknown affinity. Eocene, Brandon, Vermont. No. 540. Fruit. This fruit, or nut, is replaced by Marcasite, which radiates from the small, spherical nucleus in thin fan-shaped plates, whence the name "Cupid's "Wings," by which they are commonly known. Lias, Lyme-Regis, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability
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