THIS work has a much wider significance than might be inferred from the fact that it deals with only one family of ammonites, and that a comparatively short-lived one. Unlike most writers on ammonites, the author attaches but little importance to phylogeny which is based on the evidence of ontogeny. Previous work on the family Liparo-ceratidse has been done by Hyatt, Buckman, and Trueman, and their conclusions rest mainly on the assumption that the phylogeny of an ammonite may be seen in its ontogeny. According to these authors, the evolute Capricorn Liparoceratids were ancestral and gave rise, through the dimorphs, to the involute sphserocones.
A Catalogue of the Ammonites of the Liassic Family Liparoceratidæ in the British Museum (Natural History)
By Dr. L. F. Spath. Pp. ix + 192 + 26 plates. (London: British Museum (Natural History), 1938.) 30s.
Rights and permissions
About this article
Cite this article
A Catalogue of the Ammonites of the Liassic Family Liparoceratidæ in the British Museum (Natural History). Nature 143, 98 (1939). https://doi.org/10.1038/143098a0