Clade | |
Subclade |
Taxon | |
Taxon |
Ichthyornithes
|
Nominal Author | Marsh 1873 |
2nd Nominal Author | |
Taxon Status | INACTIVE |
Comments | |
Potential Synonomy | Ichthyornithiformes, Ichthyornithidae, Ichthyornis |
Active Phylogenetic Definition | |
Active Definition | |
Shorthand | |
Definitional Author | |
Definition Status | Unknown |
Definition Type | Unknown |
Node-Stem Triplet | Unknown |
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+Taxon | |
-Taxon | |
Datum | |
Taxonomic Content | |
Publication Year |
Unknown Unknown Unknown |
Inactive Taxon Status | |
Rejection Criteria |
junior synonym no definition |
Critique | Marsh (1873) erected Ichthyornithes for Ichthyornis and Apatornis, which upon review and cladistic analysis do not appear to be closest relatives (Clarke 2004). Clarke (2004:20) defined Ichthyornithes as a stem-based clade that currently includes only one genus and species, Ichthyornis dispar. She attempted a definition because of other poorly preserved material from Europe and Asia that might someday be shown to be related. When that day arrives, the taxon can be resuccitated. Until then, it must be considered a junior synonym of Ichthyornis. |
Definitional History #1 | |
Earliest Record | All taxa/specimens more closely related to YPM 1450 (holotype of Ichthyornis dispar Marsh 1872b) than to Aves. |
Latest Record | Clarke 2004:20 |
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Ichthyornis dispar, Aves |
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