Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Meherrinia isoni was named by Geisler et al. (2012). Its type specimen is CMM-V-4051, a partial skull, and it is a 3D body fossil. Its type locality is Meherrin River, which is in a Pliocene marine horizon in the Yorktown Formation of North Carolina. It is the type species of Meherrinia.
Synonymy list
Year | Name and author |
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2012 | Meherrinia isoni Geisler et al. p. 199 figs. Figs. 2-6 |
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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.
†Meherrinia isoni Geisler et al. 2012
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Diagnosis
Reference | Diagnosis | |
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J. H. Geisler et al. 2012 | Maxillae form posterolateral margins of nares and contribute to long and narrow nares; maxillae ‘squeeze’ nasals into slight hourglass shape; nasals increase in width as they ascend front of vertex and widest at or near apex of vertex; at apex of vertex, frontals wedge between nasals; immedi- ately posterior to vertex, supraoccipital wedged deeply between frontals and maxillae; width of skull across the postorbital processes 120–130 mm (intermediate in size between Pontoporia blainvillei and Inia geoffrensis); maxillary crest (over each orbit) and premaxillary eminence not as elevated as in P. blainvillei and I. geoffrensis; vertex intermediate in height between P. blainvillei and I. geoffrensis; vertex more slender (transversely) and elongate (anteroposteriorly) than in I. geoffrensis. |
Measurements
No measurements are available
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Source: subo = suborder, o = order | |||||
Reference: Uhen 2004 |