hamitocone

plural hamitocones

1. biologyAn organism or fossil with a hamitoconic shell, or the shell itself.

   In scaphitocones, the `pendulum effect' created by this separation was not as highly pronounced as in true ancylocones and hamitocones with open whorls throughout […]

   1998, CJ Tsujita, GEG Westermann, “Ammonoid habitats and habits in the Western Interior Seaway: a case study from the Upper Cretaceous Bearpaw Formation of southern Alberta, Canada”, in Palaeogeography, Palaeoclimatology …

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   Lytoceras and certain heteromorphs (eg, ancylocones, hamitocones) are the most appropriate for modeling because they exhibit the relevant features but are not overly complicated […]

   2002, MA Hassan, GEG Westermann, RA Hewitt et al., "Finite-element analysis of simulated ammonoid septa (extinct Cephalopoda): septal and sutural complexities do not reduce strength"

   2005, S. Reboulet, F. Giraud, O. Proux, "Ammonoid abundance variations related to changes in trophic conditions across the Oceanic Anoxic Event 1d (Latest Albian, SE France)", Palaios […] the shell would be easier in orthocones and torticones, which were oriented vertically in life with an aperture towards the bottom, than for scaphitocones, ancylocones, and hamitocones, […]

   This pattern suggests that hamitocones were exposed to extensive post-mortem drift. […] Contrary to the lytoceratids and kossmaticeratids, hamitocones are characterized by a more […]

   2018, E. B. Olivero, M. E. Raffi, “Onshore-offshore trends in Campanian ammonite facies from the Marambio group, Antarctica: implications for ammonite habitats”, in Cretaceous Research