Asoriculus Temporal range: | |
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Jaw and skull fragments of Asoriculus corsicanus, with a pencil tip (bottom left) for scale. | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Eulipotyphla |
Family: | Soricidae |
Tribe: | Nectogalini |
Genus: | † Asoriculus Kretzoi, 1959 |
Type species | |
†Crocidura gibberodon Petényi, 1864 | |
Species | |
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Asoriculus is an extinct genus of terrestrial shrews in the subfamily Soricinae (red-toothed shrews) and tribe Nectogalini, native to Europe (including the islands of Corsica, Sardinia and Sicily) and North Africa, from the Late Miocene (from around 6 million years ago) until the late Holocene (likely the late 1st millennium BC). The genus is closely related and possibly ancestral to the also recently-extinct Balearic shrews (Nesiotites), with their closest living relative being the Himalayan shrew (Soriculus nigrescens).
The best known species of Asoriculus, Asoriculus gibberodon, was widespread in Europe from the Late Miocene (Messinian, MN13, from around 7.2-5.3 million years ago [1] ) to the Early Pleistocene, [2] and was also present in Anatolia during the Pliocene. [3] The youngest records of the species date to the end of the Early Pleistocene approximately 846,000 ± 57,000 years ago in the Iberian Peninsula. [4] Another larger species, A. thenii, is sometimes also recognised in the Early Pleistocene of Europe. [4] The species Asoriculus maghrebiensis is known from the Pliocene-Pleistocene boundary (c. 2.5 million years ago) of Morocco in North Africa, making it the only known member of Soricinae to have been native to the African continent. [5]
Insular species are known from the Mediterranean islands of Sicily (A. burgioi Late Pliocene-Early Pleistocene), and Corsica-Sardinia including A. corsicanus (Late Pliocene-Early Pleistocene) and A. similis (Early Pleistocene-Late Pleistocene/Holocene). [6] [7] Asoriculus is closely related and likely ancestral to the genus Nesiotites , known from the Balearic Islands from the Early Pliocene to the Holocene, [2] whose species have sometimes been included in Asoriculus. [8] The Asoriculus species A. corsicanus and A. similis were formerly included in Nesiotites in its original circumscription, though they are usually no longer treated as part of the genus. [2]
Based on DNA from Nesiotites, the closest living relative of Asoriculus is considered to be the terrestrial Himalayan shrew ( Soriculus ), belonging to a clade of terrestrial nectogaline shrews primarily known from Asia, also including the genera Episoriculus and Chodsigoa , rather than related to the nectogaline water shrews ( Chimarrogale , Nectogale and Neomys ). A molecular clock analysis suggests that Himalayan shrews and Balearic shrews genetically diverged approximately 6.44 million years ago. [2]
Phylogeny of Nectogalini based on DNA and morphological characters after Bover et al. (2018). [2]
Nectogalini |
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The Sardinian-Coriscan species A. similis appears to have survived into the Holocene, when it became extinct sometime after human settlement of the islands, with remains apparently being found in Mesolithic and Neolithic aged archaeological sites in Sardinia. Studies in the 1990s suggested that Asoriculus became extinct on Corsica between 393 and 151 BC. [9]
A. gibberodon has been estimated to weigh approximately 8.85 grams (0.312 oz). The insular species of Asoriculus are substantially larger than A. gibberodon and most other species of Nectogalini, with A. burgioi estimated to weigh 27.54 grams (0.971 oz) and A. similis23.68 grams (0.835 oz), which has been cited as an example of island gigantism. [6]
The Sardinian pika is an extinct species of lagomorph that was endemic to the islands of Sardinia, Corsica and neighbouring Mediterranean islands until its extinction likely in Roman times. It was the last surviving member of Prolagus, a genus of lagomorph with a fossil record spanning 20 million years once widespread throughout Europe during the Miocene and Pliocene epochs. Its closest living relatives are modern pikas, from which it is estimated to have diverged around 30 million years ago.
The red-toothed shrews of the subfamily Soricinae are one of three living subfamilies of shrews, along with Crocidurinae and Myosoricinae. In addition, the family contains the extinct subfamilies Limnoecinae, Crocidosoricinae, Allosoricinae and Heterosoricinae. These species are typically found in North America, northern South America, Europe and northern Asia. The enamel of the tips of their teeth is reddish due to iron pigment. The iron deposits serve to harden the enamel and are concentrated in those parts of the teeth most subject to wear. Members of the genera Chimarrogale, Nectogale, Neomys (Nectogalini) and some members of Sorex (Soricini) are known as water shrews, due to having a semi-aquatic lifestyle.
Myotragus is an extinct genus of goat-antelope in the tribe Caprini which lived on the Balearic Islands of Mallorca and Menorca in the western Mediterranean until its extinction around 4,500 years ago. The fossil record of Myotragus on the Balearic Islands extends over 5 million years back to the early Pliocene on Mallorca, where it presumably arrived after the evaporation of the Mediterranean Sea during the Messinian Salinity Crisis.
Nuralagus is an extinct genus of leporid, with a single species, Nuralagus rex, described in 2011. It lived on Menorca, one of the Balearic Islands in the western Mediterranean during the Pliocene epoch. It is the largest known lagomorph to have ever existed, with an estimated weight of 8–12 kilograms (18–26 lb), nearly double the weight of the average Flemish Giant rabbit. It likely went extinct at the Pliocene-Pleistocene transition when Mallorca and Menorca were united as one island, letting the mammalian fauna of Mallorca, including the goat-like ungulate Myotragus, colonize Nuralagus's habitat.
The Sardinian dhole is an extinct insular canid which was endemic to what is now the Mediterranean islands of Sardinia and Corsica during the Middle-Late Pleistocene. It went extinct at the end of the Pleistocene around the time of human settlement of the islands.
The Cretan shrew is a species of mammal in the family Soricidae. It is endemic to the island of Crete, Greece. Its natural habitat is temperate shrubland, and the animal is threatened by habitat loss. It is found in the mountainous highlands of Crete, having been displaced from lower altitudes by the lesser white-toothed shrew.
Pliomys is an extinct genus of voles, subfamily Arvicolinae, tribe Pliomyini. The genus is known from fossils found across Europe. The earliest fossils date to the Early Pleistocene with one species, P. lenki, surviving to the end of the Late Pleistocene, until around 12,000 years ago in southern France and the Iberian Peninsula. Morphological evidence and DNA sequences obtained from P. lenki suggests that its closest living relative is the genus Dinaromys with a single species native to the Balkans, with P. lenki estimated to have diverged from Dinaromys around 4 million years ago. P. lenki was generally associated with cold and temperate conditions showing a range of climatic tolerance, though it appears to have only lived in open habitats and was intolerant of forest, with many specimens also found in hilly or mountainous environments.
Nectogalini is a tribe of Old World shrews within the family Soricidae. As of late 2007, it consisted of six extant genera and 25 species, with some of the latter being further divided into subspecies. Some, but not all members of the tribe are semiaquatic.
Dolinasorex glyphodon was a species of giant venomous shrew that is now extinct. Remains of the animal were found at the Gran Dolina site, located in the Sierra de Atapuerca, Burgos, Spain by researchers from the University of Zaragoza, Spain between 1991 and 2007. The deposit is estimated to be between 780,000 and 900,000 years old. D. glyphodon was the only species in the genus Dolinasorex.
Episoriculus is a genus of shrew in the red-toothed shrew subfamily. Its common is brown-toothed shrew. It has been described as a subgenus to Soriculus in the past. The genus occurs at a number of locations in Asia, including Nepal and China.
The Taiwanese brown-toothed shrew is a species of shrew in the tribe Nectogalini. It is found only in Taiwan. It prefers dense ground cover in forests and subalpine shrublands in high mountains of central Taiwan. Its placement in Episoriculus has been questioned, with genetic analysis finding that it is more basal within Nectogalini than other members of Episoriculus.
Hypnomys, otherwise known as Balearic giant dormice, is an extinct genus of dormouse (Gliridae) in the subfamily Leithiinae. Its species are considered examples of insular gigantism. They were endemic to the Balearic Islands in the western Mediterranean from the Early Pliocene until their extinction around the 3rd millennium BC. They first appeared in the fossil record on Mallorca during the Early Pliocene, presumably as a result to the evaporation of the Mediterranean sea during the Messinian salinity crisis connecting the Balearic Islands with mainland Europe. They later spread to Menorca, and a possible molar is also known from Ibiza. Hypnomys became extinct during the late Holocene likely shortly after human arrival on the Balearics. They were one of only three native land mammals to the islands at the time of human arrival, alongside the shrew Nesiotites and goat-antelope Myotragus.
Rhagamys is an extinct genus of rodents in the subfamily Murinae, the Old World mice and rats. The genus was established by the Swiss zoologist Charles Immanuel Forsyth Major to accommodate Rhagamys orthodon, which is the only species in the genus. It was endemic to the Mediterranean islands of Corsica and Sardinia, descending from Rhagapodemus, which had colonised the islands around 3.6 million years ago. Its closest living relatives are of the genus Apodemus, which includes the field and wood mice.
Nesiotites is an extinct genus of large red-toothed shrews belonging to the tribe Nectogalini that inhabited the Balearic Islands from the latest Miocene/Early Pliocene up until the arrival of humans on the islands during the late Holocene. It was present on Mallorca and Menorca. It represented one of only 3 native land mammals to the islands at the time of human arrival, alongside the goat-antelope Myotragus and the giant dormouse Hypnomys. The genus is closely related to the also recently extinct Corsican-Sardinian shrews belonging to the genus Asoriculus, with their closest living relatives being the Himalayan shrews of the genus Soriculus.
Talpa tyrrhenica, also known as the Tyrrhenian mole, is an extinct species of mole belonging to the genus Talpa. It was endemic to the Mediterranean islands of Corsica and Sardinia during the Pleistocene epoch.
Microtus (Tyrrhenicola) henseli is an extinct species of vole belonging to the genus Microtus that was endemic to Sardinia and Corsica during the Pleistocene and Holocene.
Dopasia is a genus of lizards in the family Anguidae. The genus contains seven species, which are native to Asia. They are most closely related to the North American Ophisaurus, and are sometimes considered part of that genus.
Soriculus is a genus of shrew native to the Himalayas, the adjacent Hengduan Mountains and surrounding areas. There is generally only one recognised species, Soriculus nigrescens,, though in 2023 and 2024 additional living species of the genus were proposed.
Enhydrictis is a genus of extinct mustelid, belonging to the subfamily Galictinae. The type species, and best known, is Enhydrictis galictoides from the Pleistocene of Sardinia and Corsica. Some authors attribute species from mainland Eurasia to the genus, but this is disputed, with others considering the genus endemic to Sardinia-Corsica.