Topic
Macrodelphinus
About: Macrodelphinus is a research topic. Over the lifetime, 1 publications have been published within this topic receiving 38 citations.
Papers
TL;DR: The phylogenetic analysis suggests the existence of an early Miocene Eastern Pacific long-snouted homodont odontocete clade (with an hypothetical South Atlantic member, the poorly known Argyrocetus patagonicus Lydekker, 1893), distinct from the only superficially similar eoplatanistids and eurhinodelphinids.
Abstract: Apart from a few exceptions, extant odontocetes (toothed cetaceans) exhibit a roughly homodont dentition The transition from basilosaurid-like double-rooted cheek teeth with accessory denticles to single-rooted conical teeth occurred during the late Oligocene-early Miocene At that time, several clades of now extinct, homodont and predominantly long-snouted odontocetes appeared in the fossil record Among them, members of the genera Argyrocetus Lydekker, 1893 and Macrodelphinus Wilson, 1935, from the early Miocene of the Northeast Pacific and Argentina, were tentatively attributed to the family Eurhinodelphinidae However, due to the fragmentary state of the specimens, unambiguous apomorphies of the family could not be detected Based on two well-preserved skulls with associated mandibular elements, discovered in early Miocene layers of the Chilcatay Formation (Pisco Basin, Peru), we report on a new genus and species of long-snouted homodont odontocete, Chilcacetus cavirhinus n gen, n sp Cha
Performance Metrics
| Year | Papers |
|---|---|
| 2015 | 1 |