Iniidae is a family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 of river dolphin
River dolphin
River dolphins are the four living species of dolphin that reside in freshwater rivers and estuaries. River dolphins inhabit areas of Asia and South America. They are classed in the Platanistoidea superfamily of cetaceans. Three species live in fresh water rivers. The fourth species, the La Plata...

s containing one living and three extinct genera.


The family was described by John Edward Gray
John Edward Gray
John Edward Gray, FRS was a British zoologist. He was the elder brother of George Robert Gray and son of the pharmacologist and botanist Samuel Frederick Gray ....

 in 1846.

Current classifications include a single living genera, Inia, with one species and three subspecies. The family also includes three extinct genera described from fossils found in South America
South America
South America is a continent situated in the Western Hemisphere, mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere. The continent is also considered a subcontinent of the Americas. It is bordered on the west by the Pacific Ocean and on the north and east...

, Florida
Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

, Libya
Libya is an African country in the Maghreb region of North Africa bordered by the Mediterranean Sea to the north, Egypt to the east, Sudan to the southeast, Chad and Niger to the south, and Algeria and Tunisia to the west....

, and Italy
Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

  • Superfamily Inioidea
    • Family Iniidae
      • Genus †Goniodelphis
        Goniodelphis hudsoni is an extinct genus of Iniidae known from the waters of Florida during the Miocene ~14.9—11.5 through 9.1—8.7 Ma .The fossil specimens were found in just four phosphate mines in Polk County, Florida...

        • G. hudsoni
      • Genus Inia
        Inia is a genus of river dolphin containing one or possibly two species.-Taxonomy:The genus was described by Alcide d'Orbigny in 1834 when Delphinus geoffrensis, described by Henri Marie Ducrotay de Blainville in 1817, was recognized to be a unique taxon...

        • Inia geoffrensis - Amazon River Dolphin
          • I. g. geoffrensis
          • I. g. boliviensis
          • I. g. humboldtiana
      • Genus †Ischyrorhynchus (syn. Anisodelphis)
        • I. vanbenedeni (syn. Anisodelphis brevirostratus)
      • Genus †Saurocetes (syn. Saurodelphis, Pontoplanodes)
        • S. argentinus (syn. Pontoplanodes obliquus)
        • S. gigas
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