Monograph On the British Fossil Echinodermata From the Cretaceous Formations Vo
Monograph On the British Fossil Echinodermata From the Cretaceous Formations Vo
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In our eReader you can find the full English version of the book. Read Monograph On the British Fossil Echinodermata From the Cretaceous Formations Vo Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Monograph On the British Fossil Echinodermata From the Cretaceous Formations Vo
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2294).
Description. Very little can be made out concerning the structure of this ophiurid. The disc appears to have been surrounded with a circlet of large radials. It has a diameter of about 16 mm.
A plasticine mould of the lower portion of the cast is figured on PI. XXVII, fig. 2 a. The jaws (oral angle plates) are distinctly seen. They were long and slender, and similar in form to those of 0. Serrata. Similarly a peristomial plate is not visible. The inter-radial rounded buccal shield is cle...arly seen. The arm is 4'5 mm. Broad at the base. The impression of the cast of the arm appears to indicate that both upper and lower arm-plates were small, as the side arm-plates appear to meet in the dorsal and ventral median lines.
Locality and Stratigraphical Position. From flint gravel, Mousehold, Norwich.
3. OPHIUBA PARVISENTUM, n. Sp. PL XXVII, figs. 4, 4 a.
Specific Characters. Disc covered with small plates, radials inconspicuous. Proximal upper arm-plates only occupying about one third of dorsal surface of arm.
What to read after Monograph On the British Fossil Echinodermata From the Cretaceous Formations Vo?
You can find similar books in the "Read Also" column, or choose other free books by Wright, Thomas, 1810-1877 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
2294).
Description. Very little can be made out concerning the structure of this ophiurid. The disc appears to have been surrounded with a circlet of large radials. It has a diameter of about 16 mm.
A plasticine mould of the lower portion of the cast is figured on PI. XXVII, fig. 2 a. The jaws (oral angle plates) are distinctly seen. They were long and slender, and similar in form to those of 0. Serrata. Similarly a peristomial plate is not visible. The inter-radial rounded buccal shield is cle...arly seen. The arm is 4'5 mm. Broad at the base. The impression of the cast of the arm appears to indicate that both upper and lower arm-plates were small, as the side arm-plates appear to meet in the dorsal and ventral median lines.
Locality and Stratigraphical Position. From flint gravel, Mousehold, Norwich.
3. OPHIUBA PARVISENTUM, n. Sp. PL XXVII, figs. 4, 4 a.
Specific Characters. Disc covered with small plates, radials inconspicuous. Proximal upper arm-plates only occupying about one third of dorsal surface of arm.
What to read after Monograph On the British Fossil Echinodermata From the Cretaceous Formations Vo?
You can find similar books in the "Read Also" column, or choose other free books by Wright, Thomas, 1810-1877 to read onlineMoreLess
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