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Urasterellidae
Taxonomy
Urasterellidae was named by Schuchert (1914). It is not extant. Its type is Urasterella. It was considered monophyletic by Dean Shackleton (2005).
It was reranked as the subfamily Urasterellinae by Dean Shackleton (2005).
It was assigned to Urasterellacea by Schuchert (1915); to Asteroidea by Spencer (1918); to Urasterina by Lehmann (1957), Owen (1965); to Uractinida by Blake (1989); to Palasteriscidae by Dean Shackleton (2005); to Uractinina by Spencer and Wright (1966), Blake and Rozhnov (2007); to Asteroidea by Jell and Theron (1999), Blake et al. (2016); and to Hadrosida by Blake (2018), Blake and Koniecki (2020), Müller and Hahn (2022).
It was reranked as the subfamily Urasterellinae by Dean Shackleton (2005).
It was assigned to Urasterellacea by Schuchert (1915); to Asteroidea by Spencer (1918); to Urasterina by Lehmann (1957), Owen (1965); to Uractinida by Blake (1989); to Palasteriscidae by Dean Shackleton (2005); to Uractinina by Spencer and Wright (1966), Blake and Rozhnov (2007); to Asteroidea by Jell and Theron (1999), Blake et al. (2016); and to Hadrosida by Blake (2018), Blake and Koniecki (2020), Müller and Hahn (2022).