 | Geological Society of London - 1847 - 796 pagina’s
...head, and not continuously. Its course is obliquely upwards from the eye tubercle (in one species) to the upper end of the glabella, where it appears...perforation, similar to those which surround the head (fig. 1, aa to bb). The glabella, in good specimens, has an obscure furrow at the base on each side,... | |
 | Henry Woodward - 1883 - 750 pagina’s
...вате paper, Salter refers to the discovery by himself and Emmrich of the facial suture in Trinudcus ornatus, " its course (he states) is obliquely upwards...would specially draw attention. Later on (in 1852), Mr. Barmnde, in his "Système Silurien de la Bohême " (vol. i. Trilobites, p. 230) thus wrote, " On... | |
 | Henry Woodward - 1883 - 636 pagina’s
...paper, Salter refers to the discovery by himself and Emmrich of the facial suture in Trinucleus ornalus, "its course (he states) is obliquely upwards from...would specially draw attention. Later on (in 1852), Mr. Barrande, in his "Systeme Silurien de la Boherne " (vol. i. Trilobites, p. 230) thus wrote, " On... | |
 | Geological Society of London - 1847 - 698 pagina’s
...head, and not continuously. Its course is obh'quely upwards from the eye tubercle (in one species) to the upper end of the glabella, where it appears...perforation, similar to those which surround the head (fig. 1, aa to bb), the neck-segment in all Trilobites ; the Utter segment b our genus is armed with... | |
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its course (he states) is obliquely upwards from the eye tubercle to the upper end of the glabella, where it appears to terminate in a solitary deep perforation, similar to those which surround the head 