|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Gastropoda - Goniasmatidae
It was reranked as Stegocoelia by Knight et al. (1960), Nützel and Bandel (2000), Pan and Erwin (2002), Bandel (2002), Sepkoski (2002), Nützel and Pan (2005) and Nützel and Ketwetsuriya (2016).
It was assigned to Murchisonia by Donald (1889); to Goniasmidae by Nützel and Bandel (2000); to Orthonemidae by Bandel (2002); to Murchisoniidae by Knight et al. (1960) and Pan and Erwin (2002); to Archaeogastropoda by Sepkoski (2002); and to Goniasmatinae by Nützel and Pan (2005) and Nützel and Ketwetsuriya (2016).
|Year||Name and author|
|1889||Murchisonia (Stegocoelia) Donald p. 623|
|1960||Stegocoelia Knight et al. p. 293|
|2000||Stegocoelia Nützel and Bandel|
|2002||Stegocoelia Bandel p. 100|
|2002||Stegocoelia Pan and Erwin p. 19|
|2002||Stegocoelia Sepkoski, Jr.|
|2005||Stegocoelia Nützel and Pan p. 1176|
|2016||Stegocoelia Nützel and Ketwetsuriya p. 504|
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|J. G. Donald 1889||Whorls angular, keeled ; sinus wide, situated on the posterior part of the whorl above the angle, umbilicated when young; inner lip reflected on the columella and forming a callosity round the base of the pillar, covering the umbilicus in adult specimens.|