Canariomys

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Canariomys
Temporal range: Pleistocene to Holocene
Canariomys bravoi skull.JPG
Skull of Tenerife giant rat at Museo de la Naturaleza y el Hombre
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Muridae
Tribe: Arvicanthini
Genus: Canariomys
Crusafont-Pairó & Petter, 1964 / Lopez-Martinez & López-Jurado, L. F. (1987)
Species

Canariomys is an extinct genus of rodents (Old World rats and mice) that once existed on the islands of Tenerife and Gran Canaria, part of the Canary Islands, Spain. These giant rats could reach a weight of about 1 kg (2.2 lb). They were herbivores; their diet was based on plant materials, probably soft vegetables such as roots, ferns, and berries, but not grass. C. tamarani were considered herbivores, eating everything plant-like except grass with good digging skills. While C. bravoi were considered as a rat character, because of its large size, with an omnivorous diet with good climbing skills. They were one of two groups of rodents native to the archipelago, alongside the lava mouse (Malpaisomys insularis), which was native to Fuerteventura and Lanzarote.

Contents

Original distribution

It is generally believed that the species of Tenerife lived in a wooded area linked to the laurisilva and that it had climbing abilities, whereas the species of Gran Canaria lived in more open environments and was more linked to the excavation of burrows.

Phylogeny

Two species are currently recognized, the Tenerife giant rat, (Canariomys bravoi), and the Gran Canaria giant rat (Canariomys tamarani). Both species lived in between the Pleistocene and Holocene epochs.

Both species became extinct around the beginning of the 1st Millennium, shortly after the first human settlement of the islands by the Guanches. [1]

Genetic evidence indicates that the genus is nested within Arvicanthis, specifically within the African grass rat (A. niloticus) species complex, with an estimated divergence from its mainland relatives around 650,000 years ago. [1]

Related Research Articles

<span class="mw-page-title-main">Canary Islands</span> Spanish archipelago and region in the Atlantic Ocean

The Canary Islands, also known informally as the Canaries, are a Spanish region, autonomous community and archipelago in the Atlantic Ocean. At their closest point to the African mainland, they are 100 kilometres west of Morocco and the Western Sahara. They are the southernmost of the autonomous communities of Spain. The islands have a population of 2.2 million people and are the most populous special territory of the European Union.

<span class="mw-page-title-main">Guanches</span> Native inhabitants of the Canary Islands

The Guanche were the indigenous inhabitants of the Spanish Canary Islands, located in the Atlantic Ocean some 100 kilometres (60 mi) to the west of modern Morocco and the North African coast. The islanders spoke the Guanche language, which is believed to have been related to the Berber languages of mainland North Africa; the language became extinct in the 17th century, soon after the islands were colonized.

<i>Gallotia</i> Genus of lizards

The genus Gallotia are the lacertids of the Canary Islands. This genus consists of a group that has been evolving there ever since the first islands emerged from the sea over 20 million years ago. The endemic species and subspecies of this group have a number of characteristics that make them quite special within their family (Lacertidae); their only close relatives are the sandrunner lizards (Psammodromus) of the western Mediterranean region. Gallotia are characteristic for eating significant quantities of plants, and several lineages are often presented as classic examples for insular gigantism. However, a find of an even larger Gallotia species from the early Miocene of mainland Europe casts doubt on this assumption. Instead the ancestor of all modern Gallotia species of the Canary islands was probably already very large but carnivorous.

<span class="mw-page-title-main">Laurel pigeon</span> Species of bird

The laurel pigeon or white-tailed laurel pigeon is a species of bird in the Columba genus in the family Columbidae. It is endemic to the Canary Islands, Spain, and resides in laurel forest habitat. It is the animal symbol of the island of La Gomera.

<span class="mw-page-title-main">Spalacidae</span> Family of rodents

The Spalacidae, or spalacids, are a family of rodents in the large and complex superfamily Muroidea. They are native to eastern Asia, the Horn of Africa, the Middle East, and southeastern Europe. It includes the blind mole-rats, bamboo rats, mole-rats, and zokors. This family represents the oldest split in the muroid superfamily, and comprises animals adapted to a subterranean way of life. These rodents were thought to have evolved adaptations to living underground independently until recent genetic studies demonstrated they form a monophyletic group. Members of the Spalacidae are often placed in the family Muridae along with all other members of the Muroidea.

<span class="mw-page-title-main">Nesomyidae</span> Family of rodents

The Nesomyidae are a family of African rodents in the large and complex superfamily Muroidea. It includes several subfamilies, all of which are native to either continental Africa or to Madagascar. Included in this family are Malagasy rodents, climbing mice, African rock mice, swamp mice, pouched rats, and the white-tailed rat.

<span class="mw-page-title-main">Nesomyinae</span> Subfamily of rodents

The Malagasy rodents are the sole members of the subfamily Nesomyinae. These animals are the only native rodents of Madagascar, come in many shapes and sizes, and occupy a wide variety of ecological niches. There are nesomyines that resemble gerbils, rats, mice, voles, and even rabbits. There are arboreal, terrestrial, and semi-fossorial varieties.

<span class="mw-page-title-main">Murinae</span> Subfamily of rodents

The Old World rats and mice, part of the subfamily Murinae in the family Muridae, comprise at least 519 species. Members of this subfamily are called murines. In terms of species richness, this subfamily is larger than all mammal families except the Cricetidae and Muridae, and is larger than all mammal orders except the bats and the remainder of the rodents.

The name giant rat has been applied to various species of large rats and may refer to:

<span class="mw-page-title-main">Gran Canaria giant rat</span> Extinct species of rodent

The Gran Canaria giant rat is an extinct species of rat endemic to the island of Gran Canaria.

<span class="mw-page-title-main">Lava mouse</span> Extinct species of rodent

The lava mouse is an extinct endemic rodent from the Canary Islands, Spain. It is the only species in the genus Malpaisomys.

<i>Arvicanthis</i> Genus of rodents

Arvicanthis is a genus of rodent from Africa. They are commonly referred to as unstriped grass mice, unstriped grass rats, and kusu rats.

<span class="mw-page-title-main">Tenerife giant rat</span> Extinct species of rodent

The Tenerife giant rat is an extinct species of rodent endemic to the island of Tenerife, the largest of the Canary Islands, Spain. Many remains have been found during archeological digs. Most remains are from the Pleistocene. Radiocarbon dating has placed some of the finds in the late Pleistocene.

<span class="mw-page-title-main">Heath mouse</span> Species of rodent

The heath mouse is a species of mouse in the subfamily Murinae, the Old World rats and mice, found in Australia.

<i>Gallotia goliath</i> Extinct species of lizard

Gallotia goliath is an extinct giant lizard species from the island of Tenerife of the Canary Islands, Spain. This reptile lived before the arrival of humans and is believed to have grown to at least 0.9 metres (3.0 ft) long. It was described by the German herpetologist Robert Mertens. Fossils of this lizard have been found in volcanic caves, where they often appear with those of other animals, like the Tenerife giant rat.

<i>Centrochelys burchardi</i> Extinct species of tortoise

The Tenerife giant tortoise is an extinct species of cryptodire turtle in the family Testudinidae endemic to the island of Tenerife, in the Canary Islands during the Middle Pleistocene.

<span class="mw-page-title-main">Arvicanthini</span> Tribe of rodents

Arvicanthini is a tribe of muroid rodents in the subfamily Murinae. Almost all recent species in this tribe are or were found in Africa aside from one species, the Indian bush rat, which is found in South Asia and Iran. However, some fossil Golunda species from India and the genus Parapelomys are thought to have also occurred outside Africa, and one species in the fossil genus Saidomys may have also occurred in Afghanistan.

<span class="mw-page-title-main">Hydromyini</span> Tribe of rodents

Hydromyini is a very large, diverse tribe of muroid rodents in the subfamily Murinae. They are the dominant native rodents in Australasia and one of only two native rodent groups there, the other being the R. fuscipes group of the genus Rattus in the tribe Rattini. They are also found in parts of Southeast Asia.

References

  1. 1 2 Renom, Pere; de-Dios, Toni; Civit, Sergi; Llovera, Laia; Sánchez-Gracia, Alejandro; Lizano, Esther; Rando, Juan Carlos; Marquès-Bonet, Tomàs; Kergoat, Gael J.; Casanovas-Vilar, Isaac; Lalueza-Fox, Carles (2021). "Genetic data from the extinct giant rat from Tenerife (Canary Islands) points to a recent divergence from mainland relatives". Biology Letters. 17 (12): 20210533. doi:10.1098/rsbl.2021.0533. PMC   8692034 . PMID   34932923.