''Notiosorex harrisi'' is an extinct

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

shrew Shrews ( family Soricidae) are small mole-like mammals classified in the order Eulipotyphla. True shrews are not to be confused with treeshrews, otter shrews, elephant shrews, West Indies shrews, or marsupial shrews, which belong to dif ...

from the subfamily

Soricinae The red-toothed shrews of the subfamily Soricinae are one of three living subfamilies of shrews, along with Crocidurinae (white-toothed shrews) and Myosoricinae (African white-toothed shrews). In addition, the family contains the extinct subfamil ...

. It is one of several extinct species of ''

Notiosorex ''Notiosorex'' is a genus of Shrew (animal), shrew from the subfamily Soricinae. History ''Notiosorex'' shrews have a fossil history that extends to the Miocene (i.e., mid-Hemphillian). The geographic distribution of the genus has always been in ...

'' described from the fossil record and the

specific epithet In Taxonomy (biology), taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin gramm ...

is a patronymic to honor Arthur H. Harris for his decades of work on the paleontology of mammals in the southwestern United States.

Holotype

The

holotype A holotype (Latin: ''holotypus'') is a single physical example (or illustration) of an organism used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of s ...

specimen is deposited at the

University of Texas at El Paso The University of Texas at El Paso (UTEP) is a public university, public research university in El Paso, Texas, United States. Founded in 1913 as the State School of Mines and Metallurgy, it is the third oldest academic component of the Univers ...

Biodiversity Collections as UTEP:ES:120-2526. It is an adult, left

dentary In jawed vertebrates, the mandible (from the Latin ''mandibula'', 'for chewing'), lower jaw, or jawbone is a bone that makes up the lowerand typically more mobilecomponent of the mouth (the upper jaw being known as the maxilla). The jawbone ...

with the first

incisor Incisors (from Latin ''incidere'', "to cut") are the front teeth present in most mammals. They are located in the premaxilla above and on the mandible below. Humans have a total of eight (two on each side, top and bottom). Opossums have 18, wher ...

, fourth

premolar The premolars, also called premolar Tooth (human), teeth, or bicuspids, are transitional teeth located between the Canine tooth, canine and Molar (tooth), molar teeth. In humans, there are two premolars per dental terminology#Quadrant, quadrant in ...

and first through third

molars The molars or molar teeth are large, flat tooth, teeth at the back of the mouth. They are more developed in mammal, mammals. They are used primarily to comminution, grind food during mastication, chewing. The name ''molar'' derives from Latin, '' ...

. The specimen was collected from Big Manhole Cave in

Eddy County, New Mexico Eddy County is a List of counties in New Mexico, county located in the U.S. state of New Mexico. As of the 2020 United States census, 2020 census, the population was 62,314. Its county seat and largest city is Carlsbad, New Mexico, Carlsbad. T ...

References

{{Taxonbar, from=Q90329311 harrisi Fossil taxa described in 2010 Holocene extinctions Mammals described in 2010