Post by grrraaahhh on Nov 21, 2011 13:53:59 GMT -9
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Suborder: Caniformia
Infraorder: Arctoidea
Family: Ursidae
Subfamily: Ursinae
Tribe: Ursini
Genus: Indarctos
Above: Drawing reproduction of Indarctos oregonensis.
www.flickr.com/photos/jobaria/2317324803/in/set-72157603988685117/
Indarctos was a genus of bears that existed during the Miocene. They had an extremely wide distribution; fossils of them have been discovered in North America, Asia, and northern Africa.
Indarctos was probably part of the ancestral stock that gave origin to the modern ur sine bears. Hunt (1998) included Indarctos in Ursavini, which is a sister tribe for the tribes of the modern bears. Alternatively, Indarctos is a sister taxon of Ursus and in the same clade with the modern great panda (Ailuropoda melanoleuca) (Ginsburg and Morales 1998; Ginsburg 1999).
Petter and Thomas (1986) reviewed the Agriotherium and Indarctos radiations in the Old World. They considered that there were only two Indarctos species in the Old World: I. arctoides (including subspecies I. a. vireti and I. a. arctoides) and I. atticus (I. a. atticus, I. a. lagrelii, and I. a. punjabiensis). I. arctoides had a limited distribution, occurring only in western and central Europe. I. atticus spanned from western Europe to China. According to this hypothesis I. arctoides was a forest dweller in the Vallesian (11.2–9 Ma) and I. atticus was associated with steppe and savanna in the Turolian (9–5.3 Ma). The two were considered to be chronospecies, with the open habitat I. atticus evolving from the closed habitat I. arctoides.
The type species is Indarctos salmontanus. Pilgrim named it in 1913. The holotype is a left maxilla that was found in India (Geraards et al. 2005).
Species: Indarctos salmonatus, I. arctoides, I. oregonensis, I. atticus, I. nevadensis, I. zdanskyi, I. sp.
Indarctos fossil sites
Source: Paleobiology Database.
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Suborder: Caniformia
Infraorder: Arctoidea
Family: Ursidae
Subfamily: Ursinae
Tribe: Ursini
Genus: Indarctos
Above: Drawing reproduction of Indarctos oregonensis.
www.flickr.com/photos/jobaria/2317324803/in/set-72157603988685117/
Indarctos was a genus of bears that existed during the Miocene. They had an extremely wide distribution; fossils of them have been discovered in North America, Asia, and northern Africa.
Indarctos was probably part of the ancestral stock that gave origin to the modern ur sine bears. Hunt (1998) included Indarctos in Ursavini, which is a sister tribe for the tribes of the modern bears. Alternatively, Indarctos is a sister taxon of Ursus and in the same clade with the modern great panda (Ailuropoda melanoleuca) (Ginsburg and Morales 1998; Ginsburg 1999).
Petter and Thomas (1986) reviewed the Agriotherium and Indarctos radiations in the Old World. They considered that there were only two Indarctos species in the Old World: I. arctoides (including subspecies I. a. vireti and I. a. arctoides) and I. atticus (I. a. atticus, I. a. lagrelii, and I. a. punjabiensis). I. arctoides had a limited distribution, occurring only in western and central Europe. I. atticus spanned from western Europe to China. According to this hypothesis I. arctoides was a forest dweller in the Vallesian (11.2–9 Ma) and I. atticus was associated with steppe and savanna in the Turolian (9–5.3 Ma). The two were considered to be chronospecies, with the open habitat I. atticus evolving from the closed habitat I. arctoides.
The type species is Indarctos salmontanus. Pilgrim named it in 1913. The holotype is a left maxilla that was found in India (Geraards et al. 2005).
Species: Indarctos salmonatus, I. arctoides, I. oregonensis, I. atticus, I. nevadensis, I. zdanskyi, I. sp.
Indarctos fossil sites
Source: Paleobiology Database.
