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Topic: Protosalvinia

	American Journal of Botany, 63, 1, January, 1976 (Site not responding. Last check: 2007-10-09)
		Morphology of Protosalvinia from the Upper Devonian of Ohio and Kentucky, 9-29
		The form of thallus and the resistant spores are interpreted as adaptations to a littoral environment.
		The morphology and mode of reproduction of Protosalvinia suggest a heteromorphic diplobiontic life-cycle, similar to the Heterogeneratae (Phaeophyta).
	www.botany.org /ajb/00029122_di001751.php (2320 words)

	Untitled Document
		The University of Chicago Press, Chicago IL The Evolutionary Biology of Plants.
		____, and Phillips, T.L. Morphology of Protosalvinia from the Upper Devonian of Ohio and Kentucky.
		____, Phillips, T.L. and Carozzi, A.V. Morphology and paleoecology of Protosalvinia from the Upper Devonian (Famennian) of the Middle Amazon Basin of Brazil.
	instruct1.cit.cornell.edu /courses/biopl241/niklas/nikpub.html (3368 words)

	IOP Newsletter 53: December 1994 - International Organisation of Palaeobotany (Site not responding. Last check: 2007-10-09)
		The first chapter, by Alan Hemsley is concerned with the spores of some enigmatic Devonian plants and raises the difficulty of interpreting the affinities of spores that lack triradiate marks.
		He questions the extent to which the spore wall material of some algae and 'transitional land plants' such as Parka and Protosalvinia may be considered to be sporopollenin and points out that little information is available on the composition of the exine material in bryophytes.
		Whilst this is so, one could argue that at least within embryophytes the spore walls may be meaningfully compared as homologous components in the life cycle regardless of any differences in chemical composition that might be regarded as additional characters.
	www.ohiou.edu /~iop/news/iop53/p11.html (1044 words)

	[No title] (Site not responding. Last check: 2007-10-09)
		These are the oldest lamellae reported to date; apparently they can survive in the fossil record up to 430 Myr.
		Fossil spores with similar ultrastructure to D. murusdensa include: the spores of Naiadita lanceolata from the Triassic of England (thought to be an extinct member of the Sphaerocarpales), the spores of Parka decipiens and the spores of Protosalvinia.
		In all cases, similarities include a two-parted spore wall with a homogeneous layer and a lamellated layer.
	www.elsevier.com /cdweb/journals/00346667/articles/92/3-4/003466679600109.abstract.en (294 words)

	Antrim Shale (Site not responding. Last check: 2007-10-09)
		The Antrim is at the bedrock surface as far west as Lake County and as far south as Pulaski County (Schneider and Keller, 1970) however, it is not exposed in Indiana because of the thick cover of glacial drift.
		Correlation: The fossil Protosalvinia (Foerstia) has been recognized in the Antrim Shale of Michigan (Matthews, 1983) and has also been found about 20 feet above the base of the Clegg Creek Member of the New Albany Shale in southeastern Indiana (Hasenmueller, 1982).
		The gray calcareous shale in the lower part of the Antrim Shale in northern Indiana is considered equivalent to the upper part of the Traverse Group in Michigan (Schneider and Keller, 1970).
	igs.indiana.edu /geology/structure/compendium/html/comp3n6s.cfm (312 words)

	ON THE ORIGIN AND SIGNIFICANCE OF PYRITE BEDS IN DEVONIAN BLACK SHALES FROM THE EASTERN US (Site not responding. Last check: 2007-10-09)
		In a sequence stratigraphic context, beds of polyframboidal pyrite mark extreme sediment starvation and maximum flooding surfaces.
		They occur for example prominently at the level of the Protosalvinia (Foerstia) interval.
		Because rapid weathering of fine grained pyrite renders these kinds of beds unrecognizable in outcrop they have not been reported previously.
	gsa.confex.com /gsa/2004AM/finalprogram/abstract_78004.htm (413 words)

	Lab IV - Early Land Plants (1)
		We leave our phylogenetic framework for a moment to look at some of the early land plants that have boggled attempts at evolutionary classification.
		Examine specimens of Parka (Figure 4.2) (VG 1:6), Prototaxites (VG 1:7), and Protosalvinia (a.k.a.
		Some of these plants are thalloid much like early liverworts, hornworts and mosses might have been.
	www.ucmp.berkeley.edu /IB181/VPL/Elp/Elp1.html (943 words)

	A Coherent and Genetically-Based Stratigraphic Framework for the New Albany Shale Succession: Methods and Results (Site not responding. Last check: 2007-10-09)
		Instead, it consists of at least five major stacked shale packages that are bounded by regional erosion surfaces that connect to adjacent basins.
		Identification and tracing of these erosion surfaces and their intervening shale packages is augmented by the presence of the biostratigarphic marker Foerstia (Protosalvinia), UV maxima that mark maximum flooding surfaces, and truncation of gamma ray log motives.
		In conjunction, these observations allow the establishment of a coherent and genetically based stratigraphic framework for the New Albany Shale succession.
	aapg.confex.com /aapg/cal2005/techprogram/A96570.htm (330 words)

	American Journal of Botany, 74, 3, March, 1987 (Site not responding. Last check: 2007-10-09)
		These results indicate that the seasonal temperature and daylength effects on maternal plants in the greenhouse environment are major determinants of seed germination characteristics of O. corniculata.
		Abstract: Protosalvinia is an enigmatic fossil which has been historically assigned to several major taxonomic groups.
		Stratigraphically, the fossil occurs in a narrow range of Upper Devonian sediments.
	www.botany.org /ajb/00029122_di001869.php (3259 words)

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