The lobopod animal, Ayscheaia pendunculata Walcott, Middle Cambrian, Burgess Shale, British Columbia
By: by H.B. Whittington.
Contributors: Royal Society.
Series: Philosophical Transactions of the Royal Society of London -- Vol.284, no.1000 pp.165-197
Publisher: Royal Society
Published: 1978
Place of publication: London
Language: eng