Arimidelphis

Arimidelphis Temporal range: 3.60–1.81  Ma [1] PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Artiodactyla
Suborder:	Whippomorpha
Infraorder:	Cetacea
Family:	Delphinidae
Genus:	† Arimidelphis
Species:	†A. sorbinii
Binomial name
†Arimidelphis sorbinii Bianucci, 2005

Arimidelphis is an extinct genus of toothed whale from the Piacenzian and Gelasian ages, ^[2] containing only the species A. sorbinii. ^[1] It was described by Giovanni Bianucci in 2005. ^[3]

Etymology

This genus was named after Ariminus, the Latin name of the Marecchia river. ^[3]

Taxonomy

When Arimidelphis was first described in 2005, it was placed in the subfamily Orcininae. Later, in 2014, it was moved to the family Delphinidae. ^{[1] [4]}

Distribution

Fossils of this species were found in northern Italy. ^[3]

References

1. "Arimidelphis†". Mindat . Hudson Institute of Mineralogy. Retrieved 2 July 2025.
2. "Arimidelphis". Paleobiology Database . Retrieved 2 July 2025.
3. Bianucci, Giovanni (31 July 2005). "Arimidelphis sorbinii: a new small killer whale-like dolphin from the Pliocene of Marecchia river (Central Eastern Italy) and a phylogenetic analysis of the Orcininae (Cetacea: Odontoceti)". Rivista italiana di Paleontologia e Stratigrafia. 111 (2): 329–344. doi:10.13130/2039-4942/6324 . Retrieved 2 July 2025.
4. Murakami, Mizuki; Shimada, Chieko; Hikida, Yoshinori; Soeda, Yuhji; Hirano, Hiromichi (16 April 2014). "Eodelphis kabatensis, a new name for the oldest true dolphin Stenella kabatensis Horikawa, 1977 (Cetacea, Odontoceti, Delphinidae), from the upper Miocene of Japan, and the phylogeny and paleobiogeography of Delphinoidea". Journal of Vertebrate Paleontology. 34 (3): 491–511. doi:10.1080/02724634.2013.816720 . Retrieved 2 July 2025.