The pattern of tooth plate formation in the Australian lungfish, Neoceratodus forsteri Krefft

1977 ◽  
Vol 60 (3) ◽  
pp. 223-258 ◽  
Author(s):  
A. KEMP
Keyword(s):  
Tooth Plate ◽  
Plate Formation ◽  
Australian Lungfish

Australian Triassic lungfish skulls

1994 ◽  
Vol 68 (3) ◽  
pp. 647-654 ◽  
Author(s):  
A. Kemp
Keyword(s):  
New South ◽  
New South Wales ◽  
Three Dimensional ◽  
Lower Triassic ◽  
South Wales ◽  
Tooth Plate ◽  
Dimensional Reconstruction ◽  
First Time ◽  
To Receive ◽  
Australian Lungfish

Skull bones of Gosfordia truncata Woodward, 1891, from the Lower Triassic Hawkesbury Sandstone of New South Wales, Australia, are described for the first time. The skull roofing pattern suggests possible affinities between G. truncata and Paraceratodus germaini (Triassic, southwest Madagascar). A three-dimensional reconstruction of the skull of Ceratodus formosus Wade, 1935, based on the holotype, found in a Lower Triassic deposit at Brookvale in New South Wales, is included. This reconstruction indicates that this species is not closely related either to the recent Australian lungfish, Neoceratodus forsteri, or to the Triassic Ceratodus (Tellerodus) sturii from Nord Alpen in Austria, and it has no close affinities with G. truncata. A new genus, Ariguna, is therefore proposed to receive Ceratodus formosus Wade, 1935. Without associated tooth plate material, G. truncata and A. formosa cannot be defined more precisely.

Advances in rectifiers for battery plate formation

1982 ◽  
Vol 28 (10) ◽  
pp. 703
Author(s):  
M.R. Duddridge
Keyword(s):  
Plate Formation

Dynamics and roles of phragmoplast microfilaments in cell plate formation during cytokinesis of tobacco BY-2 cells

2009 ◽  
Vol 54 (12) ◽  
pp. 2051-2061 ◽  
Author(s):  
Yan Zhang ◽  
WenJie Zhang ◽  
Frantisek Baluska ◽  
Diedrik Menzel ◽  
HaiYun Ren
Keyword(s):  
Cell Plate ◽  
Cell Plate Formation ◽  
Plate Formation

scholarly journals Diversification of sterol methyltransferase enzymes in plants and a role for β-sitosterol in oriented cell plate formation and polarized growth

2015 ◽  
Vol 84 (5) ◽  
pp. 860-874 ◽  
Author(s):  
Masatoshi Nakamoto ◽  
Anne-Catherine Schmit ◽  
Dimitri Heintz ◽  
Hubert Schaller ◽  
Daisaku Ohta
Keyword(s):  
Cell Plate ◽  
Polarized Growth ◽  
Cell Plate Formation ◽  
Plate Formation ◽  
Sterol Methyltransferase

scholarly journals Comparative development of mammalian and alligator metapodial growth plate formation

2006 ◽  
Vol 295 (1) ◽  
pp. 415
Author(s):  
Philip L. Reno ◽  
C. Owen Lovejoy ◽  
Ruth M. Elsey ◽  
Walter E. Horton
Keyword(s):  
Growth Plate ◽  
Comparative Development ◽  
Plate Formation

scholarly journals Guianacara dacrya, a new species from the rio Branco and Essequibo River drainages of the Guiana Shield (Perciformes: Cichlidae)

2011 ◽  
Vol 9 (1) ◽  
pp. 87-96 ◽  
Author(s):  
Jessica H Arbour ◽  
Hernán López-Fernández
Keyword(s):  
New Species ◽  
River Basins ◽  
Guiana Shield ◽  
Dorsal Fin ◽  
White Spots ◽  
Tooth Plate ◽  
Northern Brazil ◽  
Pharyngeal Jaw ◽  
River Drainages ◽  
A New Species

A new species of Guianacara is described from tributaries of the Essequibo River and the rio Branco in Guyana and northern Brazil. Guianacara dacrya, new species, can be diagnosed from all congeners by the possession of a unique infraorbital stripe and by the shape of the lateral margin of the lower pharyngeal jaw tooth plate. Guianacara dacrya can be further distinguished from G. geayi, G. owroewefi, G. sphenozona and G. stergiosi by the possession of a thin midlateral bar, from G. cuyunii by the possession of dusky branchiostegal membranes and from G. oelemariensis by the possession of two supraneurals. This species differs from most congeners by the presence of white spots on the spiny portion of the dorsal fin, the placement of the midlateral spot, the presence of filaments on the dorsal, anal and in rare cases the caudal-fin and from at least the Venezuelan species by several morphometric variables. Guianacara dacrya is known from the Essequibo, Takutu and Ireng River basins of Guyana and possibly from the rio Uraricoera in the rio Branco basin in Brazil. A key to the species is provided.

Efficient Algorithms for Inspection and Reforming of Double-Curved Plates in Line-Heating Process

2006 ◽  
Vol 22 (03) ◽  
pp. 184-193
Author(s):  
Yujun Liu ◽  
Zhuoshang Ji ◽  
Yanping Deng ◽  
Jun Zhang ◽  
Ji Wang
Keyword(s):  
Manufacturing Process ◽  
Three Dimensional ◽  
Efficient Algorithms ◽  
Heating Process ◽  
Line Heating ◽  
Technical Parameters ◽  
Error Analyses ◽  
Metal Plates ◽  
Plate Formation ◽  
Prospective Application

Line heating is an effective and economical method for forming metal plates into three-dimensional shaped plates for ships, trains, and airplanes. When a curved plate subject to deformation is formed in line-heating process, the deformed shape is repeatedly inspected and reformed to reach the designed shape. Efficient automatic inspection and reforming processes are essential to enhance productivity in the whole manufacturing process. In this paper, efficient algorithms for inspection and reforming of double-curved plates are introduced. These algorithms have been developed to automatically inspect the transverse and longitudinal shape of plate surfaces and provide technical parameters to reform the unformed plates. The longitudinal shape of the plate surface is examined based on a shell plate development with plastic deformation during the plate formation, and the transverse shape is inspected through error analyses of transverse curvature radiuses. How to use the inspection results to reform unformed plates is discussed. In the end, experiments are performed with comparison to the current industrial plate manufacture, and results show a prospective application of our algorithms to the practical manufacturing of doublecurved plates. The methods presented in this study may play a role in realizing the automation of the entire curved-plate manufacturing process.

Sporeling development in the genus Exormotheca. 1. Exormotheca ceylonensis

1968 ◽  
Vol 46 (8) ◽  
pp. 1009-1012 ◽  
Author(s):  
Ram Udar ◽  
S. C. Srivastava
Keyword(s):  
Germ Tube ◽  
Plate Formation ◽  
Rhizoid Formation

The sporeling development in E. ceylonensis has been described. The germ tube emerges through the distal face of the spore. The plate formation is of two types: the Stephensoniella type and the Asterella type. The germ rhizoid formation is of the Stephensoniella type.

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