A nematode (Captivonema cretaceagen. et sp. n.) preserved in a clitellate cocoon wall from the Early Cretaceous
作者:
SVEIN B. MANUM,
MAHENDRA N. BOSE,
ROY T. SAYER,
SVEN BOSTRÖM,
期刊:
Zoologica Scripta
(WILEY Available online 1994)
卷期:
Volume 23,
issue 1
页码: 27-31
ISSN:0300-3256
年代: 1994
DOI:10.1111/j.1463-6409.1994.tb00370.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
A fossil worm‐like organism,ca.0.5 mm long, showing cuticle, gut and setae. is contained in the solid part of the wall of a clitellate cocoon from the Early Cretaceous (Barremian). It is interpreted as having been entrapped and embedded in the intitially viscous cocoon secretion which solidified and thus prevented decay. Size, shape, posture, and an unsegmented but annulated cuticle with irregularly distributed setae have led to the identification of the fossil as a nematode. described asCaptivonema cretaceagen. et sp. n., of uncertain family and order affinity. Fossil association end mode of preservation indicate a free‐living life habit in damp plant lit
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