Topic
Ichthyoconodon
About: Ichthyoconodon is a research topic. Over the lifetime, 2 publications have been published within this topic receiving 74 citations.
Papers
TL;DR: The results of a phylogenetic analysis including most taxa relevant to addressing triconodont phylogenetic relationships show Argentoconodon and Volaticotherium as a clade, which in turn is more closely related to Ichthyoconodon than to any other taxon.
Abstract: Argentoconodon fariasorum is the only triconodont from the Jurassic of South America. Originally described on the basis of an upper molariform, A. fariasorum is now known by several specimens, including one that preserves most of its dentition, upper and lower jaws, and several postcranial elements. Close anatomical similarity exists between Argentoconodon fariasorum, Ichthyoconodon jaworowskorum, from the Cretaceous of Morocco, and the likely Jurassic Volaticotherium antiquus, from China. The results of a phylogenetic analysis including most taxa relevant to addressing triconodont phylogenetic relationships show Argentoconodon and Volaticotherium as a clade, which in turn is more closely related to Ichthyoconodon than to any other taxon. Our most parsimonious hypotheses support a triconodontid ancestry for Argentoconodon, Ichthyoconodon, and Volaticotherium as members of the monophyletic traditional subfamily Alticonodontinae. The inclusion of Argentoconodon among alticonodontines extends the ge...
47 citations
Journal Article•
TL;DR: Three mammalian molars from the Early Cretaceous of Morocco reveal the existence of two new and peculiar species, one of them assigned to the Eotheria Triconodonta (uncertain family), Dyskritodon arnazighi gen. et sp.
Abstract: Three mammalian molars from the Early Cretaceous of Morocco reveal the existence, a t that time, of two new and peculiar species, one of them assigned to the Eotheria Triconodonta (uncertain family), Dyskritodon arnazighi gen. et sp. n., the second only tentatively assigned to the Triconodonta, Ichthyoconodon jawor o w s k o m gen. et sp. n. The former is represented by a last lower molar which three main cusps (a, c, d) decrease regularly in size posteriorly while cusp b is very small and lingually situated, a unique condition for post-Liassic triconodonts. The second taxon (two specimens) is characterized by very narrow and trenchant teeth not intermeshing with adjacent ones, and carrying three subequal main cusps (b, a , c). Such dental morphology suggests that these mammals might have been semi-aquatic and piscivorous.
32 citations
Performance Metrics
| Year | Papers |
|---|---|
| 2011 | 1 |
| 1995 | 1 |