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Article: The micromorph Albian ammonite Falloticeras Parona and Bonarelli

Publication: Palaeontology
Volume: 20
Part: 4
Publication Date: January 1978
Page(s): 793 804
Author(s): W. J. Kennedy and M. R. Cooper
Addition Information

How to Cite

KENNEDY, W. J., COOPER, M. R. 1978. The micromorph Albian ammonite Falloticeras Parona and Bonarelli. Palaeontology20, 4, 793–804.

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The Palaeontological Association (Free Access)


Falloticeras Parona and Bonarelli, 1897 (type species: Ammonites proteus d'Orbigny, 1842) is a diminutive Cretaceous (Middle Albian, dentatus Zone) member of the acanthoceratacean subfamily Mojsisovicsiinae, individuals of which are generally adult at less than 35 mm diameter. The genus is considered to be a micromorph, perhaps a neotenous offshoot of Mojsisovicsia Steinmann, 1881, rather than simply a microconch of that genus. This is suggested by differences in ontogenetic development, relative abundance, and stratigraphic distribution. The type specimens are illustrated photographically for the first time, a lectotype designated, and the range of variation discussed.
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