CAMERAL LIQUID IN NAUTILUS AND AMMONITES

被引：41

作者：

WARD, PD

机构：

[1] Department of Geology, University of California, Davis

来源：

PALEOBIOLOGY | 1979年 / 5卷 / 01期

关键词：

D O I：

10.1017/S009483730000628X

中图分类号：

X176 [生物多样性保护];

学科分类号：

090705 ;

摘要：

Recent Nautilus pompilius from the Fiji Islands and N. macromaphalus from New Caledonia show decreasing cameral liquid volumes relative to total phragmocone volume during ontogeny. A maximal value of 32% of the phragmocone filled with cameral liquid was measured from a 190gN. pompilius. No specimens of over 500 g total weight of either species exceeded 12%. These figures are in contrast to values derived for seven ammonoid species by Heptonstall (1970), who found values ranging between 19 and 52%. © 1979, Paleontological Society. All rights reserved.

引用

页码：40 / 49

页数：10

共 17 条

[1]

Bayer U., 1977, Neues Jb Geol Paleont Abh, V155, P162

[2]

COLLINS DH, 1978, GEOL SOC AM ABSTR, V10, P382

[3]

DAVIS RA, 1973, J PALEONTOL, V47, P925

[4] FURTHER OBSERVATIONS ON BUOYANCY OF SPIRULA [J].