A CRETACEOUS HERMIT-CRAB FROM ANTARCTICA - PREDATORY ACTIVITIES AND BRYOZOAN SYMBIOSIS

被引：17
|
作者：
AGUIRREURRETA, MB
OLIVERO, EB
机构：
[1] Departamento de Ciencias Geológicas, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires
[2] CIRGEO, Centro de Investigaciones en Recursos Geológicos, Buenos Aires, 1414
来源：
ANTARCTIC SCIENCE | 1992年 / 4卷 / 02期
关键词：
ANTARCTICA; CRETACEOUS; DECAPODA; PAGURIDAE; HERMIT CRABS; PREDATION; SYMBIOSIS; PALEOENVIRONMENTS;
D O I：
10.1017/S0954102092000324
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A hermit crab assigned to Paguristes sp. is described from James Ross Island, Antarctica. The fossil was obtained from the Gamma Member of the Santa Marta Formation of late Campanian age. The specimen is associated with an external mould of the gastropod Taioma, that was encrusted by a colony of ascophoran bryozoans. Another specimen of Taioma shows typical predatory marks in the outer lip that are attributed to the action of pagurids. It is concluded that the particular dwelling habits of the hermit crabs, their symbiosis with bryozoan, and their predatory activities were already established by the end of the Cretaceous.
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页码：207 / 214
页数：8
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