 | 1836 - 690 pages
...transverse grooves on the whole surface of each ray; but these are generally almost obliterated. Along the margins are extremely regular rows of small rhomboidal...such rays as have not been broken off prior to the animal's being entombed are obtusely pointed. Having met with no species with which this corresponds,... | |
 | Thomas Wright - 1880 - 322 pages
...transverse grooves on the whole surface of each ray; but these are generally almost obliterated. Along the margins are extremely regular rows of small rhomboidal...the animal being entombed, are obtusely pointed." Locality and Stratigraphical position.—Prom the appearance of the shale in which this specimen is... | |
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margins are extremely regular rows of small rhomboidal perforations, or cells, from which proceed a series of lateral filaments, or delicate lengthened papillae; but on the surface of the fossil, it merely presenting to us the interior, no papillae are... 