Temporal range: Late Pliocene-Early Pleistocene 3.5–2.5 Ma
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
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Skeleton at the Museo Capellini di Bologna
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Class:
Mammalia
Order:
Artiodactyla
Infraorder:
Cetacea
Family:
Delphinidae
Genus:
Orcinus
Species:
†O. citoniensis
Binomial name
†Orcinus citoniensis
Capellini, 1883
Synonyms[1][2]
Orca citoniensis Capellini, 1883
Orca citoniensies Capellini, 1883
Orca cylindrica Matsumoto, 1937
Orcinus citoniensis is an extinct species of killer whale identified in the Late Pliocene of Italy and the Early Pleistocene of England. It was smaller than the modern killer whale (O. orca), 4 m (13 ft) versus 7 to 10 m (23 to 33 ft), and had around 8 more teeth in its jaw. It may have resembled the modern killer whale in appearance, and could represent a transitional species between the modern killer whale and other dolphins. O. citoniensis could have hunted fish and squid in pods, and coexisted with other large predators of the time such as the orcinine Hemisyntrachelus and the extinct shark Otodus megalodon.
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^Cite error: The named reference matsumoto was invoked but never defined (see the help page).
and 9 Related for: Orcinus citoniensis information
Orcinuscitoniensis is an extinct species of killer whale identified in the Late Pliocene of Italy and the Early Pleistocene of England. It was smaller...
Orcinus paleorca and O. citoniensis, describing fossilised remains of the genus. The other extinct species O. meyeri is disputed. The genus Orcinus was...
Orcinus paleorca is a fossil species of Orcinus, the genus of killer whales (orca), dated to the Middle Pleistocene. The holotype specimen, a tooth fragment...
whose only member is Risso's dolphin. Orcinus orca is the only recognized extant species in the genus Orcinus, and one of many animal species originally...
Orcinus meyeri is a fossil species of Orcinus (killer whales) found in the Early Miocene deposits of southern Germany, known from two jaw fragments and...
whales which appeared in the Miocene, and a member of genus Orcinus (i.e., Orcinuscitoniensis) in the Pliocene, is assumed to have contributed to the decline...
feeding behavior of Orcinuscitoniensis is published by Citron et al. (2022), who confirm the assignment of this species to the genus Orcinus. A study on tooth...
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