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The sculpture of the protoconch is irregularly ribbed.
      
Heterochrony in Shell Sculpture Development within the Ostracode Genus Hemicythere
      
The evolutionary issues of taxonomic significance of the shell sculpture in Ostracoda are addressed.
      
It is shown that the development of each sculpture type proceeds relatively independently and represents a mosaic; developmental stages are accompanied by numerous heterochronies.
      
Shell surface features such as grooves and spurs of the axial sculpture have proven to be unhelpful in the estimation of individual age and growth rate of this species.
      
The name of these crustaceans originates from the carapace sculpture.
      
janthostoma was similar to that of Natica montagu from Danish waters [16] by its shape, pigmentation, shell sculpture and velum structure.
      
The phenotypes of shell pattern and sculpture are identified and described using a scheme based on "elementary" characters, or pattern elements.
      
striola Kononova in the sculpture of the metasoma (tergites I-III striate, whereas in C.
      
originalis Kozlov and Kononova, but differs from it in the sculpture of the metasoma (metasomal tergites with longitudinal wrinkles against the bright smooth background; in C.
      
artus with protruding mesoscutum) and the sculpture of the metasomal tergites (in C.
      
parilis is 3 times as long as marginal vein and 0.83 times as long as postmarginal one), by the sculpture of the metasoma, and coloration of the coxae (yellow in C.
      
floridum also differs in the sculpture of the metasoma (C.
      
mediterranea has only metasomal petiolus with the same sculpture and tergites II-IV with alveolate sculpture, tergites V and VI are slightly stippled) and in the coloration of the legs, which are yellow (as coxae), while C.
      
recens, but differs from it in the fore-wing venation, sculpture of the metasoma, and coloration of the coxae.
      
ruficollis Kozlov et Kononova in the head sculpture, which is finely alveolate in C.
      
All the four species possess a similar mesosomal sculpture, coarse on the mesoscutum and more or less striate on the scutellum, and the solid clava obliquely truncate at apex.
      
danubialis Szelényi, but differs in the strongly flattened body, sculpture of the abdominal stem and tergite II, and coloration of the legs.
      
Morphological diversity of the exine sculpture of some Frasnian spores from the northern Timan: Applications for taxonomy and si
      
The exine sculpture is studied in in situ spores, as well as in dispersed miospores of Cristatisporites, Ancyrospora, and Hystricosporites, found in the rock enclosing the plant.
      
 

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