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Acrotheloidea Temporal range: Cambrian Stage 2–Early Ordovician PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Brachiopoda
Order:	Discinida
Superfamily:	†Acrotheloidea
Families
Acrothelidae Botsfordiidae Schindewolf, 1955

Acrotheloidea is a superfamily of Discinid brachiopods, alternatively ascribed to the lingulids—for a discussion of discinid taxonomy, see Discinida.

The story goes that there's an evolutionary transition from Eoobolus through Pustulobolus and Bostfordia to Acrotretids.

Acrotheloids have an apical foramen.

References

1. Kazlev, M.Alan. "Palaeos Metazoa: Brachiopoda: Linguliformea: Discinida". palaeos.com.
2. Boyce, W. D.; Balthasar, U.; Knight, I.; Skovsted, C. B. (6 November 2017). "Depth related brachiopod faunas from the lower Cambrian Forteau Formation of southern Labrador and western Newfoundland, Canada". Palaeontologia Electronica: 1–52. doi:10.26879/775. hdl:10026.1/11606.
3. Ushatinskaya, G. T; Korovnikov, I. V (2016). "Revision of the superfamily Acrotheloidea (Brachiopoda, class Linguliformea, order Lingulida) from the Lower and Middle Cambrian of the Siberian Platform". Paleontological Journal. 50 (5): 450–462. Bibcode:2016PalJ...50..450U. doi:10.1134/S0031030116050130.

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