Question: Which style of indie rock that emerged in the late 1980s is Dartz! a group of ?

Context paragraphs:
Shoegazing: Shoegazing (also known as shoegaze) is a subgenre of indie rock, alternative rock, and neo-psychedelia that emerged in the United Kingdom in the late 1980s.  The style is typified by the blurring of component musical parts—typically significant guitar distortion, feedback and obscured vocals—into indistinguishable mixtures of sound.

Emo: Emo is a genre of rock music characterized by an emphasis on emotional expression, sometimes through confessional lyrics.  It emerged as a style of post-hardcore from the mid-1980s hardcore punk movement of Washington, D.C., where it was known as emotional hardcore or emocore and pioneered by Washington, D.C. hardcore bands such as Rites of Spring and Embrace.  However, as the genre was taken up by a new generation of musicians in the early 1990s, its sound and meaning shifted and changed and it was reinvented as a style of indie rock and pop punk by bands such as Jawbreaker, Sunny Day Real Estate, Weezer, and Jimmy Eat World.  By the mid-1990s, numerous emo acts such as Braid, The Promise Ring, and the Get Up Kids emerged in the Midwestern and Central United States, and several independent record labels began to specialize in the genre.  Meanwhile, a more aggressive style of emo, screamo, had also emerged, pioneered by the San Diego bands Heroin and Antioch Arrow.

Garage punk (fusion genre): Garage punk is a rock music fusion genre combining punk rock and garage rock that took shape in the indie rock underground between the late 1980s and early 1990s.  Bands drew heavily from stripped-down 1970s punk rock and Detroit proto-punk, and incorporated numerous other styles into their approach, such as power pop, 1960s girl groups and garage rock, hardcore punk, early blues and R&B, and surf rock.

List of rock genres: This is a list of rock music genres consisting of subgenres of popular music that have roots in 1940s' and 1950s' rock and roll, and which developed into a distinct identity as rock music in the 1960s, particularly in the United Kingdom and the United States.  By the late 1960s, a number of identifiable rock music subgenres had emerged, including hybrids like blues rock, folk rock, country rock, and jazz-rock fusion, many of which contributed to the development of psychedelic rock influenced by the counter-cultural psychedelic scene.  New genres that emerged from this scene included progressive rock, which extended the artistic elements; glam rock, which highlighted showmanship and visual style; and the diverse and enduring major subgenre of heavy metal, which emphasized volume, power, and speed.  In the second half of the 1970s, punk rock both intensified and reacted against some of these trends to produce a raw, energetic form of music characterized by overt political and social critiques.  Punk was an influence into the 1980s on the subsequent development of other subgenres, including new wave, post-punk and eventually the alternative rock movement.  From the 1990s alternative rock began to dominate rock music and break through into the mainstream in the form of grunge, Britpop, and indie rock.  Further fusion subgenres have since emerged as well as conscious attempts to revisit rock's history.

New rave: New rave is a genre of music described by "The Guardian" as "an in-yer-face, DIY disco riposte to the sensitive indie rock touted by bands like Bloc Party." .  It is most commonly applied to a British-based music scene between 2005 and late 2008 of fast-paced electronica-influenced indie music that celebrated the late 1980s Madchester and rave scenes through the use of neon colours and using the term 'raving' to refer to going nightclubbing.

Indie rock: Indie rock is a genre of alternative rock that originated in the United States and the United Kingdom in the 1980s.  Originally "Indie" meant independent record labels and the music they produced.  "Indie" was often used interchangeably with "alternative" rock.  As grunge and punk revival bands in the US, and then Britpop bands in the UK, broke into the mainstream in the 1990s, indie identified those acts that retained an outsider and underground perspective.  In the 2000s, as a result of changes in the music industry and the growing importance of the Internet, some indie rock acts began to enjoy commercial success, leading to questions about its meaningfulness as a term.

Math rock: Math rock is a style of indie rock that emerged in the late 1980s in the United States, influenced by post-hardcore, progressive rock bands such as King Crimson and 20th century minimal music composers such as Steve Reich.  Math rock is characterized by complex, atypical rhythmic structures (including irregular stopping and starting), counterpoint, odd time signatures, angular melodies, and extended, often dissonant, chords.  It bears similarities to post-rock.

Dartz!: Dartz!  (often stylized as DARTZ!)  were a Math rock group from Middlesbrough in North East England (UK) who formed at the beginning of 2005.  They are signed to Xtra Mile Recordings in the UK and Deep Elm in the US, and released one full-length album, one mini-album, three singles and a split 7" via Xtra Mile - as well as an EP on Sunderland based DIY micro-label Fakedream Records, and a split 10" with Scottish band Stapleton on Gravity DIP.

The Phonies: The Phonies are a Finnish rock band formed in Ykspihlaja, Kokkola in 2002.  The band's members are vocalist Tom Stenman, guitarist Risto Lehtomaa, and bassist Pekka Hietalahti.  The Phonies is coupled around the songwriting partnership of Tom Stenman and Risto Lehtomaa, who have been working together since the late 1980s.  In addition to The Phonies, Stenman and Lehtomaa are known from the late Finnish guitar pop band called The Refreshments, which released a few singles and one album during the 1990s.  Indie critics highly acclaimed The Refreshments attracted international attention and they made mini tour with UK indie band Mega City Four.  The Refreshments broke up during the recording sessions of their second album.  After a few years of musical separation this characteristic songwriter duo reunited in the form of The Phonies.  The band developed a more organic musical style as they drifted away from the sound of power pop, helping to develop the characteristic rock sound which drew its strength from the 70's psychedelia and musical influences such as The Bevis Frond, Roky Erickson and Kevin Ayers.  Stenman's lyrics are known for being whimsical and somewhat cryptic.  Stenman's soul-searching and intense vocals combined to Lehtomaa's sense of the style and melody forms the core of The Phonies music.

Indie pop: Indie pop (also typeset as indie-pop or indiepop) is a music genre and subculture that combines guitar pop with DIY ethic in opposition to the style and tone of mainstream pop music.  It originated from British post-punk in the late 1970s and subsequently generated a thriving fanzine, label, and club and gig circuit.  The style, a counterpart of indie rock, differs to the extent that it is more melodic, less abrasive, and relatively angst-free than other indie rock.  In later years, the definition of "indie pop" has bifurcated to also mean bands from unrelated DIY scenes/movements with pop leanings.  Subgenres include chamber pop and twee pop.

Supporting paragraphs: Dartz! Math rock
Answer: Math rock