3 edition of Sphenopteris sellardsii, a problematical pteridosperm from the Permian of Kansas found in the catalog.
Sphenopteris sellardsii, a problematical pteridosperm from the Permian of Kansas
Robert W. 1914- Baxter
|Statement||Robert W. Baxter.|
|Series||The University of Kansas paleontological contributions : Paper ;, 94, University of Kansas paleontological contributions., 94.|
|LC Classifications||QE701 .K33 no. 94, QE961 .K33 no. 94|
|The Physical Object|
|Pagination||7 p. :|
|LC Control Number||78111528|
arthropod diversity estimates for three native subalpine plant species on the maunakea volcano of hawai‘i island a thesis submitted to the graduate division of the. We are committed to sharing findings related to COVID as quickly and safely as possible. Any author submitting a COVID paper should notify us at [email protected] to ensure their research is fast-tracked and made available on a preprint server as soon as possible. We will be providing unlimited waivers of publication charges for accepted articles related to COVIDCited by: 3.
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Get this from a library. Sphenopteris sellardsii, a problematical pteridosperm from the Permian of Kansas. [Robert W Baxter] -- Discusses the characteristics of Sphenopteris sellardsii, a new species of pteridosperm based on fertile foliage from the Elmo Limestone member of Early Permian age in east-central Kansas.
Sphenopteris sellardsii, a problematical pteridosperm from the Permian of Kansas. View/ Open. High resolution PDF (for higher quality images) (Mb) Lower resolution PDF (for faster downloading) (Kb) Issue Date Author.
Baxter, Robert W. Sphenopteris is a genus of seed ferns containing the foliage of various extinct plants, ranging from the Devonian to Late Cretaceous. The frond of Sphenopteris could be up to 20 inches (51 cm) long.
In Brazil, fossil of form genus Sphenopteris was located in outcrop Morro Papalé in the city of Mariana : †Lyginopteridopsida. Sphenopteris definition is - a form genus of Paleozoic fossil plants (order Cycadofilicales) based primarily on leaf blades with cuneate pinnules.
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Carboniferous-Permian. Part of the stem of the fossil lycopod Sigillaria (a lycophyte). The external texture shows the former positions of the leaf bases.
Sporangia were borne on the stem surface amongst them. The figured stem fragment is 6 cm in length. Pteridophyte Devonian-Permian. Part of the foliage of the extinct fern Sphenopteris (a. Seed ferns (Pteridosperms) were group of seed plants from the Carboniferous and Permian periods (about to million years ago).
Some, such as Medullosa, grew as upright, unbranched woody trunks topped with a crown of large fernlike fronds; others, such as Mariopterids, were woody vines. Introduction. The number of Lopingian (“late” Permian) 1 floras in Europe is very limited. Lopingian floras are known from the Zechstein Basin (British Isles, The Netherlands, Belgium, Denmark, Germany and Poland), from Hungary and the Southern Alps, northern Italy (see e.g., Chaloner and Meyen,Schweitzer, ).The floras from the Zechstein Basin are less Cited by: Epidermal anatomy of Glenopteris splendens Sellards nov.
emend., an enigmatic seed plant from the Lower Permian of Kansas (U.S.A.) October. TOWNROW, J. The Peltaspermaceae, a pteridosperm family of Permian and Triassic age. Palaeontology, 3, 3, – This is a specimen of a very rare species of the herbaceous seed fern Sphenopteris Crossotheca schatzlarensis preserved with great details.
This delicate herbaceous plants, are rarely found as a fossils. Zeilleria, Discopterids, Uranopterids etc. were mostly a herbaceous "seeds ferns" or were creeping, vine-like plants.
Fossilworks hosts query, analysis, and download functions used to access large paleontological data sets. It presents taxonomic, distributional, and ecological data about the entire fossil record.
Sphenopteris elegans. Formation: Kanawha Interval: Coalburg seam Age: Middle Pennsylvanian Period, approx. million years. Location: Nicholas County, West Virginia; Ramp Run Surface Mine #1, located about 12 miles north of Summersville, West Virginia.
The Function of Insect Trapping by Penstemon Digitalis and Cirsium Discolor Welcome to the IDEALS RepositoryCited by: 2. Pupal Orientation and Emergence of Some Aphelinid Parasitoids (Hymenoptera: Aphelinidae) of Bemisia argentifolii (Homoptera: Aleyrodidae) TONG-XIAN Li ANu D PHILIP A.
STANSL Y Southwest Florida Research and Education Center o,f Universit Florida, P.O.y Drawe rImmokalee, FL Ann. Entomol. Soc. 89(3): ().
The Alabama Plant Atlas is a source of data for the distribution of plants within the state as well as taxonomic, conservation, invasive, and wetland information for each species.
The website also provides access to a database and images of plants photos and herbarium specimens found at participating herbaria. Coreidae bugs, Amblypelta spp, are economically important insect pests. Predation and parasitism are conventionally considered unimportant in controlling Amblypelta, and this results in heavy use of chemical r, a number of natural enemies of Amblypelta have been identified, and among these, predacious ants, Oecophylla smaragdina, can significantly.
Alexander, B. An exploratory analysis of cladistic relationships within the superfamily Apoidea, with special reference to sphecid wasps. Journal of Hymenoptera Research 1: Brothers, D.
Phylogeny and evolution of wasps, ants and bees (Hymenoptera, Chrysidoidea, Vespoidea and Apoidea). Zoologica Scripta 28 (): south-facing slopes on red sandstones, siltstones, and shale soils of the Permian age Cutler formation and shows an extent of occurrence of km2 and an area of occupancy of 28 km2 (Bachman et al., ).
A recent survey (McCauley, ) estimates the total occurrence area to consist of approximately Lemos, W. et al. Brazilian Archives of Biology and Technology Figures - Female reproductive system ofPodisus nigrispinus fedondifferentpreys Partial view of predator ovaries fed on 3 P.)).
homa, Colorado, Kansas, and Nebraska Limitedly NEin Arizona NW in Colorado, N into Wyoming, W into Utah N from SE Texas into Oklahoma, and NE in NewMexico N in the U.S.; through Kansas to Nebraska, and N in Rio Grande Valley in NewMexico N in New Mexico NW in Arizona aod N in Texas Various in Arizona; N in New Mexico into S Colo rado NW in Cited by: armyworn symposium stewart et al.
7 combining exclusion techniques and larval death-rate analyses to evaluate mortality factors of spodoptera exigua.STUDIES ON THE BIOLOGY AND ECOLOGY OFPAGIOCERUS FRONTALIS (FABRICIUS) (COLEOPTERA: SCOLYTIDAE) INFESTING STORED MAIZE IN ECUADOR J. EIDT-WENDTand FASCHULZ Technical University Berlin, Department of Phytomedicine, Berlin, FRG Abstract In laboratory experiments hosts, host-related behaviour and the effect of.