caa a22 4500 475807073 CHVBK 20180406123750.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1007/BF01086385 doi (NATIONALLICENCE)springer-10.1007/BF01086385 Sorophores of Lygodium Sw. (Schizaeaceae) from the Late Cretaceous of New Jersey [Elektronische Daten] [M. Gandolfo, K. Nixon, W. Crepet, G. Ratcliffe, L. Hortorium] We report here on a series of specimens of charcoalified sorophores with characteristics of the extant fern genusLygodium (Schizaeaceae) collected from sediments of the Raritan Formation (Late Cretaceous). Each elongate lobed fertile pinnule (sorophore) is flattened and bears alternately arranged sporangia on one surface. Each sporangium is covered by an indusium continuous with the margin of the lamina. Sporangia are oblong in shape, short stalked, and have an apical annulus formed by a single ring of radiating cells that dehisces longitudinally. The ‘sporangial cap' or ‘distal face' is formed by only one cell. All of these features are characteristic of the extant genusLygodium. Small numbers of trilete, psilate spores are found in the sporangia. Megafossils assignable toLygodium are known from the Upper Cretaceous of North America and Germany with worldwide distribution during the Tertiary. The newLygodium fossils are compared with others previously referred to the genus. Springer-Verlag, 2000 Late Cretaceous nationallicence Turonian nationallicence fossil fern nationallicence Lygodium nationallicence Schizaeaceae nationallicence sorophores nationallicence Gandolfo M. Department of Plant Biology, Cornell University, 14853-4301, Ithaca, NY, USA aut Nixon K. Department of Plant Biology, Cornell University, 14853-4301, Ithaca, NY, USA aut Crepet W. Department of Plant Biology, Cornell University, 14853-4301, Ithaca, NY, USA aut Ratcliffe G. Department of Plant Biology, Cornell University, 14853-4301, Ithaca, NY, USA aut Hortorium L. Department of Plant Biology, Cornell University, 14853-4301, Ithaca, NY, USA aut Plant Systematics and Evolution Springer-Verlag 221/1-2(2000-03-01), 113-123 0378-2697 221:1-2<113 2000 221 606 https://doi.org/10.1007/BF01086385 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01086385 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gandolfo M. Department of Plant Biology, Cornell University, 14853-4301, Ithaca, NY, USA aut NATIONALLICENCE 700 1- Nixon K. Department of Plant Biology, Cornell University, 14853-4301, Ithaca, NY, USA aut NATIONALLICENCE 700 1- Crepet W. Department of Plant Biology, Cornell University, 14853-4301, Ithaca, NY, USA aut NATIONALLICENCE 700 1- Ratcliffe G. Department of Plant Biology, Cornell University, 14853-4301, Ithaca, NY, USA aut NATIONALLICENCE 700 1- Hortorium L. Department of Plant Biology, Cornell University, 14853-4301, Ithaca, NY, USA aut NATIONALLICENCE 773 0- Plant Systematics and Evolution Springer-Verlag 221/1-2(2000-03-01), 113-123 0378-2697 221:1-2<113 2000 221 606 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer