Huaridelphis

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Huaridelphis
Temporal range:
Ma
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Infraorder: Cetacea
Family: Squalodelphinidae
Genus: Huaridelphis
Lambert et al. 2014
Species:
H. raimondii
Binomial name
Huaridelphis raimondii
Lambert et al. 2014

Huaridelphis is an

extinct genus of river dolphins from the Early Miocene (Deseadan to Friasian in the SALMA classification).[1] The type species is H. raimondii, found in the Chilcatay Formation of the Pisco Basin
.

Etymology

The genus name is derived from the name of the

Huari people, an ancient culture from Peru, and from the Latin word for "dolphin"; delphis. The specific name was chosen in honor of Antonio Raimondi, an Italian geographer and the first person to discover fossilized whale remains in Peru.[1]

Description

H. raimondii was a relatively small squalodelphinid, with a bizygomatic breadth of 207 millimetres (8.1 in) and a condylobasal length of 494 millimetres (19.4 in). The rostrum, which was only slightly dorsoventrally flattened, and made up only 67% of the condylobasal length, considerably less than most squalodelphinids. The antorbital notches were V-shaped and asymmetrical, with the right notch farther back on the head than the left one. The species had 28-30 teeth per top row, with alveoli ranging in diameter between 3.7 and 5.5 millimetres (0.15 and 0.22 in). Teeth ranged from 3.35 to 6.4 millimetres (0.132 to 0.252 in) high at the crown. Ribs measured around 260 millimetres (10 in).[1]

Discovery

Fossils of H. raimondii have been recovered from the

Ica Region of Peru.[1]

Habitat

The specimens date from the

Teleostei, and sea turtles. Injuries, probably from sharks, were observed on at least two of the fossils.[1]

References