Botanica Pacifica. A journal of plant science and conservation Preprint
Article first published online: 17 OCT 2015 | DOI: 10.17581/bp.2015.04209
Position of Ovule Attachment in a Carboniferous Medullosalean Pteridosperm
Christopher J. Cleal 1 & Mihai E. Popa 2
1 Department of Natural Sciences, National Museum Wales, Cathays Park, Cardiff CF10 3NP, U.K.
2 University of Bucharest, Faculty of Geology and Geophysics, Laboratory of Palaeontology, 010041, Bucharest, Romania
A specimen of Alethopteris zeilleri from Stephanian deposits of Secu, Reşiţa Basin of South Carpathians, Romania, provides additional evidence that these medullosalean pteridosperms bore ovules laterally attached to rachises, probably in the proximal part of the frond. Alethopteris zeilleri foliage is associated with Pachytesta incrassata ovules with a peculiar taphonomic position.
Клил Х.Дж., Попа М.Э. Положение места прикрепления семезачатков в каменноугольных медуллозовых семенных папоротниках. Alethopteris zeilleri из Стефанийских отложений близ города Секу, в бассейне Решица (Южные Карпаты, Румыния) представляет дополнительные доказательства, что на этих медуллозовых семенных папоротниках семезачатки были прикреплены к латеральным частям рахиса, вероятно в проксимальной части вайи. Вайи Alethopteris zeilleri находились вместе с семезачатками Pachytesta incrassata в характерном для них прижизненном захоронении.
Keywords: palaeobotany, Pennsylvanian, Medullosales, ovules, Romania, палеоботаника, Пенсильванский отдел, семезачаток, Румыния
References
Androne P., V. Cirimbei & M.E. Popa 2000. Paleozoic and Mesozoic botanical heritage values of the Reşiţa Basin, Romania. Analele Universităţii Bucureşti 49: 75–80.
Bucur, I.I. 1991. Proposition pour une nomenclature formelle des depots paleozoiques et mesozoiques de la zone de Reşiţa-Moldova Nouă (Carpathes Meridionales, Roumanie). Studia Universitatis Babeş-Bolyai, Geologie 36: 3–14.
Bucur, I.I. 1997. Formaţiunile mesozoice din zona Reşiţa-Moldova Nouă. Cluj-Napoca, 214 pp.
Cleal, C.J. 2008. Palaeofloristics of Middle Pennsylvanian medullosaleans in Variscan Euramerica. Palaeogeography, Palaeoclimatology, Palaeoecology 268: 164–180. CrossRef
Cleal, C.J., E.L. Zodrow & M. Mastalerz 2010. An association of Alethopteris foliage, Trigonocarpus ovules and Bernaultia-like pollen organs from the Middle Pennsylvanian of Nova Scotia, Canada. Palaeontographica, Abt. B 283: 73–97.
Crane, P.R. 1985. Phylogenetic analysis of seed plants and the origin of angiosperms. Annals of the Missouri Botanical Garden 72: 716–793. CrossRef
Dimichele, W.A., T.L. Phillips & H.W. Pfefferkorn 2006. Paleoecology of Late Paleozoic pteridosperms from tropical Euramerica. Journal of the Torrey Botanical Society 133: 83–118. CrossRef
Doyle, J.A. & M.J. Donoghue 1992. Fossils and seed plant phylogeny reanalyzed. Brittonia 44, 89–106. CrossRef
Hilton, J. & R.M. Bateman 2006. Pteridosperms are the backbone of seed-plant phylogeny. Journal of the Torrey Botanical Society 133: 119–168. CrossRef
Jarzembowski, E.A. 2008. The oldest insect from Romania: a new Carboniferous blattodean. Studia Geologica Polonica 129: 43–50.
Laveine, J.-P. 1986. The size of the frond in the genus Alethopteris Sternberg (Pteridospermopsida, Carboniferous). Geobios 19: 49–56. CrossRef
Laveine, J.-P. 1997. Synthetic analysis of the neuropterids. Their interest for the decipherment of Carboniferous palaeogeography. Review of Palaeobotany and Palynology 95: 155–189. CrossRef
Laveine, J.-P., A. Belhis, Y. Lemoigne & S.Z. Zhang 1992. Frond architecture in the genera Neuralethopteris Cremer, Alethopteris Sternberg and Lonchopteris Brongniart (Carboniferous pteridosperms). Revue de Paléobiologie 6: 149–166.
Năstăseanu, S. 1987. Upper Paleozoic molasse deposits in the Romanian South Carpathians. In: Pre-Variscan and Variscan events in the Alpine-Mediterranean mountain belts (E. Flugel, F. Sassi & P. Grecula, eds.), pp. 371–378, Alfa Bratislava, Bratislava.
Năstăseanu, S., I. Stănoiu, C. Biţoianu 1973. Corelarea formaţiunilor molasei hercinice (Westfalian-Permian) din partea vestică a Carpaţilor Meridionali. Anuarul Institutului Geologic 40: 71–109.
Petrescu, I., E. Nicorici, C. Biţoianu, N. Ţicleanu, C. Todros, M. Ionescu, G. Mărgărit, M. Nicorici, A. Duşa, I. Pătruţoiu, A. Munteanu, A. Buda 1987. Geologia zăcămintelor de cărbuni. 2. Zăcăminte din România. Editura Tehnică, Bucharest.
Popa, M.E., 2001. Aspects of Romanian Palaeozoic palaeobotany and palynology. Part I. An Acitheca type fern from Secu (Banat). Acta Palaeontologica Romaniae 3: 365–369.
Popa, M.E. 2005. Aspects of Romanian Palaeozoic palaeobotany and palynology. Part II. Overview of the Upper Carboniferous formations in the South Carpathians. Zeitschrift der Deutschen Gesellschaft fur Geowissenschaften 156: 415–430. CrossRef
Popa, M.E. 2009. Late Palaeozoic and Early Mesozoic continental formations of the Reşiţa Basin. Editura Universităţii din Bucureşti, Bucharest, 197 pp.
Popa, M.E. 2011. Field and laboratory techniques in plant compressions: an integrated approach. Acta Palaeontologica Romaniae 7: 279–283.
Popa, M.E., J. Psenicka 2010. The Pennsylvanian Pecopteris ticleanui sp. nov. from Secu, Reşiţa Basin, Romania. Bulletin of Geosciences 85: 663–670. CrossRef
Seyfullah, L.J. & J. Hilton 2009. Re-evaluation of Halle's fertile pteridosperms from the Permian floras of Shanxi Province, China. Plant Systematics and Evolution 279: 191–218. CrossRef
Stidd, B.M. 1981. The current status of medullosan seed ferns. Review of Palaeobotany and Palynology 32: 63–101. CrossRef
Wagner, R.H. 1968. Upper Westphalian and Stephanian species of Alethopteris from Europe, Asia Minor and North America. Mededelingen van de Rijks Geologische Dienst, Serie C, III-1 6: 1–188.
|
|