Architectonicidae, common name the staircase shells or sundials, are a family of sea snails, marine gastropod mollusks in the informal group Lower Heterobranchia (= Allogastropoda) of the clade Heterobranchia.
The extinct families â Amphitomariidae Bandel, 1994 and â Cassianaxidae Bandel, 1996 belong to the same superfamily.
Genera
Genera within the family Architectonicidae include:
- Adelphotectonica <small>Bieler, 1987</small>
- â Ammotectonica <small>Harzhauser & Landau, 2023</small>
- Architectonica Röding, 1798 â type genus
- Basisulcata <small>Melone & Taviani, 1985</small>
- â Calodisculus <small>Rehder, 1935</small>
- â Climacopoma <small>Fischer, 1885</small>
- â Dinaxis <small>Dall in Aldrich, 1895</small>
- â Discotectonica <small>Marwick, 1931</small>
- â Disculus <small>Deshayes, 1863</small>
- â Eosolarium <small>Chavan, 1947</small>
- â Ewekorolaxis <small>Adegoke, 1977</small>
- â Granosolarium <small>Sacco, 1892</small>
- Heliacus <small>d'Orbigny, 1842</small>
- â Intitectonica <small>Frassinetti & Covacevich, 1984</small>
- â Margaritella <small>Meek & Hayden, 1860</small>
- â Nigerialaxis <small>Adegoke, 1977</small>
- â Nipteraxis <small>Cossmann, 1916</small>
- â Nodosolarium <small>Sacco, 1892</small> as â Solarium (Nodosolarium) <small>Sacco, 1892</small> (uncertain > unassessed)
- Philippia <small>J. E. Gray, 1847</small>
- â Platylaxis <small>Adegoke, 1977</small>
- Pseudomalaxis <small>P. Fischer, 1885</small>
- â Pseudotorinia <small>Sacco, 1892</small>
- Psilaxis <small>Woodring, 1928</small>
- â Punjabia <small>Eames, 1952</small>
- â Rinaldoconchus <small>Bandel, 1988</small>
- â Simplexollata <small>Harzhauser & Landau, 2023</small>
- Solatisonax <small>Iredale, 1931</small>
- Spirolaxis <small>di Monterosato, 1913</small>
- â Stellaxis <small>Dall, 1892</small>
- â Trimalaxis <small>Garvie, 1996</small>
- â Wangaloa <small>Finlay, 1927</small>
Synonyms
- Acutitectonica <small>Habe, 1961</small>: synonym of Discotectonica <small>Marwick, 1931</small>
- Aguayodiscus <small>Jaume & Borro, 1946</small>: synonym of Spirolaxis <small>Monterosato, 1913</small>
- Astronacus <small>Woodring, 1959</small>: synonym of Heliacus (Torinista) <small>Iredale, 1936</small>
- Awarua <small>Mestayer, 1930</small>: synonym of Pseudotorinia <small>Sacco, 1892</small> (junior subjective synonym)
- Claraxis <small>Iredale, 1936</small>: synonym of Granosolarium <small>Sacco, 1892</small>
- Discosolis <small>Dall, 1892</small>: synonym of Pseudomalaxis <small>P. Fischer, 1885</small>
- Grandeliacus <small>Iredale, 1957</small>: synonym of Heliacus <small>Iredale, 1957</small> (alternate representation)
- â Granoheliacus <small>Melone & Taviani, 1985</small>; synonym of Solatisonax <small>Iredale, 1931</small>
- Gyriscus <small>Tiberi, 1867</small>: synonym of Heliacus (Gyriscus) <small>Tiberi, 1867</small> represented as Heliacus <small>A. d'Orbigny, 1842</small>
- Mangonuia <small>Mestayer, 1930</small>: synonym of Pseudomalaxis <small>P. Fischer, 1885</small>
- â Patulaxis <small>Dall, 1892</small>: synonym of â Climacopoma <small>Fischer, 1885</small>
- Paurodiscus <small>Rehder, 1935</small>: synonym of Spirolaxis <small>Monterosato, 1913</small>
- Pyrgoheliacus <small>Bieler, 1987</small>: synonym of Heliacus <small>A. d'Orbigny, 1842</small>
- Redivivus <small>Melone & Taviani, 1985</small>: synonym of Solatisonax <small>Iredale, 1931</small>
- Russetia <small>Garrard, 1961</small>: synonym of Discotectonica <small>Marwick, 1931</small>
- â Solariaxis <small>Dall, 1892</small>: synonym of Granosolarium <small>Sacco, 1892</small>
- Solarium <small>Lamarck, 1799</small>: synonym of Architectonica <small>Röding, 1798</small>
- Teretropoma <small>Rochebrune, 1881</small>: synonym of Heliacus (Teretropoma) <small>Rochebrune, 1881</small> (alternate representation) represented as Heliacus <small>A. d'Orbigny, 1842</small>
- Torinia <small>Gray, 1842</small>: synonym of Heliacus <small>d'Orbigny, 1842</small>
- Torinista <small>Iredale, 1936</small>: synonym of Heliacus (Torinista) Iredale, 1936 (alternate representation) represented as Heliacus <small>A. d'Orbigny, 1842</small> (misspelling - incorrect subsequent spelling, Error for Torinista)
- Tornista [sic] : synonym of Torinia <small>J. E. Gray, 1842</small>: synonym of Heliacus <small>A. d'Orbigny, 1842</small> (Error for Torinia <small>Gray, 1842</small>)
References
- Bieler R. (1993). Architectonicidae of the Indo-Pacific (Mollusca, Gastropoda). Abhandlungen des Naturwissenschaftlichen Vereins in Hamburg (NF) 30: 1âÂÂ376
- Bouchet P. & Rocroi J.-P. (2005) Classification and nomenclator of gastropod families. Malacologia 47(1âÂÂ2): 1âÂÂ397
- Marco Taviani, Revisione delle Architectonicidae del Mediterraneo; Milano, 1984
Further reading