2024/80/1
ISSN : 2533-4050 (tisk), 2533-4069 (online)
Vedoucí redaktor : Jiří Kvaček
Vedoucí redaktor : Jiří Kvaček
Pinaceous evolution illuminated by additional diversity of Early Cretaceous seed cones
Gar W. Rothwell, Ruth A. Stockey
An anatomically preserved fossil conifer seed cone has been discovered near Ono, California, providing additional evidence for the diversification of Pinaceae during the Aptian Stage of the Early Cretaceous. The specimen was measured and photographed, and then serial anatomical thin sections were…
Spore assemblages from the Silurian-Lower Devonian ‘Lower Old Red Sandstone’ deposits of the Lanark Basin of the Midland Valley of Scotland
Charles H. Wellman
The Lanark Basin is situated along the southern Margin of the Midland Valley of Scotland. It contains a series of Silurian inliers whose transitional marine to brackish to terrestrial sequences are unconformably overlain by Lower Devonian ‘Lower Old Red Sandstone’ deposits. Dispersed spore…
A revision of the conifer Sphenolepis kurriana (Dunker) Schenk from the Wealden of Germany and England
Joan Watson, Helen L. Fisher
The scale-leaved fossil conifer Sphenolepis kurriana (Dunker) Schenk is redescribed from the Wealden floras of Germany and England. The revised study of this fossil species encompasses specimens remaining in the nineteenth century Dunker Collection in the Museum für Naturkunde, Berlin, from which a…
Early coal swamp vegetation from the Serpukhovian lower Clackmannan Group of Scotland
Christopher J. Cleal, Christine Strullu-Derrien, Alan R. T. Spencer
The coal-bearing lower Clackmannan Group of Scotland has yielded diverse fossil floras of Serpukhovian (late Mississippian) age dominated by arborescent lycopsids, equisetopsids, ferns and lyginopteridalean pteridosperms. Similar macrofloras of the same age have been reported from coal-bearing…
Detection of in situ resinous traces in Jurassic conifers from floras lacking amber
Leyla J. Seyfullah, Mario Coiro, Vivi Vajda, Stephen McLoughlin, Margret Steinthorsdottir
Amber deposits are rare in Jurassic successions, occurring in small quantities, whereas Lower Cretaceous strata host many substantial and commonly fossiliferous amber deposits worldwide. Minor amounts of Early Jurassic amber have been reported from Italy, and small amounts of Late Jurassic amber are…
Deciphering interfungal relationships in the 410-million-yr-old Rhynie chert: Rhizophydites shutei sp. nov. (fossil Chytridiomycota) on glomeromycotan acaulospores
Michael Krings
The spores of arbuscular mycorrhizal fungi (Glomeromycota) in the Early Devonian Rhynie ecosystem served as a habitat for a diversity of other fungi, only a few of which have been studied in detail so far. Rhizophydites shutei nov. sp. occurs in planar assemblages and tuft-like clusters comprised of…
Ultrastructure of Cambrian cryptospores and the early evolution of the plant spore wall
Wilson A. Taylor, Paul K. Strother
Terrestrially-derived cryptospores from Cambrian deposits in eastern Tennessee were examined using transmission electron microscopy (TEM) to determine the underlying structural basis for spore wall construction in these pre-embryophytic spore types. In addition to previously-described species from…
Challenges in reconstructing the vegetation associated with a late Eocene mammal fauna from Western Europe
Margaret E. Collinson, Jerry J. Hooker, Sharon J. Gibbons
Bed TB33, a lacustrine unit within the late Eocene (early Priabonian) How Ledge Limestone, Headon Hill, Isle of Wight, UK, contains a rich mammalian fauna. The previously reconstructed food web included mammalian predators and prey (ground dwelling, scansorial and arboreal; insectivores, frugivores,…
Anisopteris shuteana sp. nov., a fertile adpression fossil from the Mississippian (lower Carboniferous) of Teilia Quarry, North Wales, UK
Peta A. Hayes, Hugh Lance Pearson
Anisopteris shuteana Hayes et H.L.Pearson sp. nov., a rare fertile adpression fossil, is described from the Mississippian of Teilia Quarry, Gwaenysgor, North Wales, UK. The new species is based on material from the Margaret Benson Collection and named in honour of Cedric H. Shute who curated the…
Lower Devonian Tortilicaulis is an early tracheophyte and not a bryophyte
Jennifer L. Morris, Dianne Edwards, Lindsey Axe, Tom Crooks, Duncan Murdock, Philip C. J. Donoghue
Tortilicaulis D.Edwards is a genus of long-standing unknown affinity in which there are two species: the holotype T. transwalliensis D.Edwards, known only from coalified compressions and T. offaeus D.Edwards, Fanning et J.B.Richardson, known from an assemblage of minute, exceptionally well preserved…
Morphology and affinities of Carya costata hickory nuts from the Oligocene of Bohemia
Steven R. Manchester, Jiří Kvaček
We reinvestigated type material and subsequently collected fossil nuts of Carya costata (C.Presl ex Unger) Unger based on type material from the Oligocene of western Bohemia. These specimens are older than most occurrences of C. ventricosa (C.Presl ex Brongn.) Unger which has its type locality in…
Messinian age of an “Oligocene” fossil flora from Italy
Edoardo Martinetto, Andrea Irace, Giuseppe Marramà
An enigmatic deposit at Pavone d’Alessandria provided, at the end of the 19th century, about one hundred plant macrofossils, considered to be Oligocene in age. That material is no longer available, but a few animal (an insect and a fish) and plant remains have recently been recovered from this…