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Aturia
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Nautiloidea
Order:
Nautilida
Superfamily:
Nautilaceae
Family:
Aturiidae
Formal Genus Name and Reference:
Aturia BRONN, 1838
Type Species:
Nautilus aturi Basterot, 1825, SD HERMANNSEN, 1846 (p. 90)
Images
(Click to enlarge in a new window)
Fig. 337,1a,b. A. angustata (Conrad), Mio., USA (Wash.), x0.4 (124) -- Fig. 337,1c. A. alabamensis (Morton), U.Eoc., Afr., x1 (226). -- Fig. 337,1d. A. curvilineata (Miller & Thompson), Mio., S.Am. (Venez.), x0.3 (226)
Synonyms
Pelagus, Nautilopsis, Megasiphonia, A.(Nilaturia) , A.(Brazaturia)
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
Paleoc.
Beginning International Stage:
Danian
Fraction Up In Beginning Stage:
0
Beginning Date:
66.04
Ending Stage in Treatise Usage:
Mio.
Ending International Stage:
Messinian
Fraction Up In Ending Stage:
100
Ending Date:
5.34
Description
Characters of family = Smooth, very involute to occluded, discoidal conch, flattened laterally, rounded ventrally, with deep impressed zone; suture with broad, flattened ventral saddle, narrow pointed lateral lobe, broadly rounded lateral saddle, broad lobe on umbilical slope and dorsal area, and broad saddle on dorsal area divided by deep, narrow lobe; siphuncle moderate in size, subdorsal and located in infundibuliform dorsal adapical flexure of septa. Paleoc.-Mio.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Nautiloidea
Order:
Nautilida
Superfamily:
Nautilaceae
Family:
Aturiidae
Formal Genus Name and Reference:
Aturia BRONN, 1838
Type Species:
Nautilus aturi Basterot, 1825, SD HERMANNSEN, 1846 (p. 90)
Images
(Click to enlarge in a new window)
Fig. 337,1a,b. A. angustata (Conrad), Mio., USA (Wash.), x0.4 (124) -- Fig. 337,1c. A. alabamensis (Morton), U.Eoc., Afr., x1 (226). -- Fig. 337,1d. A. curvilineata (Miller & Thompson), Mio., S.Am. (Venez.), x0.3 (226)
Synonyms
Pelagus, Nautilopsis, Megasiphonia, A.(Nilaturia) , A.(Brazaturia)
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
Paleoc.
Beginning International Stage:
Danian
Fraction Up In Beginning Stage:
0
Beginning Date:
66.04
Ending Stage in Treatise Usage:
Mio.
Ending International Stage:
Messinian
Fraction Up In Ending Stage:
100
Ending Date:
5.34
Description
Characters of family = Smooth, very involute to occluded, discoidal conch, flattened laterally, rounded ventrally, with deep impressed zone; suture with broad, flattened ventral saddle, narrow pointed lateral lobe, broadly rounded lateral saddle, broad lobe on umbilical slope and dorsal area, and broad saddle on dorsal area divided by deep, narrow lobe; siphuncle moderate in size, subdorsal and located in infundibuliform dorsal adapical flexure of septa. Paleoc.-Mio.