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Xenerodiops
Taxonomy
Xenerodiops was named by Rasmussen et al. (1987). Its type is Xenerodiops mycter.
It was assigned to Xenerodiopidae by Rasmussen et al. (1987).
It was assigned to Xenerodiopidae by Rasmussen et al. (1987).
Species
X. mycter (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1987 | Xenerodiops Rasmussen et al. p. 12 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. T. Rasmussen et al. 1987 | The rostrum is heavy and decurved, with
weU-defined lateral grooves that delimit a somewhat swollen terminus, quite unlike the straight, sharply pointed rostrum of herons. The dorsal bar is narrow and deep, and does not become expanded and flattened posteriorly as in die Ardeidae. It appears that die nasal septum may have been completely ossified (aldiough it is broken posteriorly so this cannot be determined with certainty), whereas in die Ardeidae diere is practically no indication of an ossified nasal sepmm. The nasal bars are thick and almost cylindrical, unlike the thin flattened nasal bars in the Ardeidae. The posterolateral corner of die premaxilla is a large, deep, posteriorly directed flange above which the quadratojugal bar articulates at some distance dorsally; in herons this is a slender process that runs under, and is in contact widi, the quadratojugal bar. The humerus is on first appraisal heron-like but more robust, with a more expanded and triangular pectoral crest and a more rounded bicipital crest that is much more distinctiy set off from die shaft. Unlike herons or any of the "core" Ciconiiformes, the tricipital fossa is excavated and not pneumatic, although there are a few small foramina around die proximal margin, as in the Phoenicopteridae. |