Home Plot Diversity Curves Tree of Life About Admin Login

Welcome to the Treatise on Invertebrate Paleontology!

Please enter a genera name to retrieve more information.

Search By:
and Class
and Order

Florilus

Classification

    Phylum:  
Protista
    Subphylum:  
Sarcodina
    Class:  
Reticularea
    Subclass:  
Granuloreticulosia
    Order:  
Foraminiferida
    Suborder:  
Rotalina
    Superfamily:  
Cassidulinacea
    Family:  
Nonionidae
    Subfamily:  
Nonioninae
    Formal Genus Name and Reference:  
Florilus de MONTFORT, 1808, *1305, p. 134. (nom. subst. pro Nautilus asterizans FICHTEL & MOLL, 1798, *716, p. 37; OD]
    Type Species:  
Nonionina D'ORBIGNY, 1826, *1391, p. 293 (type, Nautilus asterizans FICHTEL & MOLL, 1798, *716, p. 37, SD PARKER & JONES, 1863, *1417f, p. 433); Pseudononion ASANO, 1936, *47, p. 347 (type, P. japonicum); Aura KHALlLOV, 1958, ·1038, p. 6 (type, A. transversa)


Images

(Click to enlarge in a new window)
Fig. 612,4. *F. asterizans (FICHTEL &: MOLL), Rec., Eu.(Italy); 4a,b, side, edge views, X48 (*2117). -- Fig. 612,5. F. japonieus (ASANO), Plio., Japan; 5a-e, opp. sides and edge view, X71 (*2117). -- Fig. 612,6. F. eostiferus (CUSHMAN), Mio., USA(Calif.); 6a,b, side, edge views, X48 (*2117). -- Fig. 612,7. F. transversus (KHALlLOV), U.Eoc., USSR(Azerbaidzhan); 7a-e, opp. sides and edge view of holotype,. X30 (*1038)


Synonyms



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:  
Eoc.
    Ending International Stage:  
Priabonian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
33.9


Description

Test free, planispiral but may be asymmetrical, involute, but with broad, low chambers increasing rapidly in breadth and thickness resulting in flaring test, peripheral margin rounded to angled, umbilical region slightly depressed, filled with granular skeletal material which may extend slightly along sutures; wall calcareous, finely perforate, granular in structure, single-layered; aperture a narrow, interiomarginal, equatorial opening. [Differs from Nonion in the Raring test, due to the numerous broad low chambers, and from Nonionella in lacking the single umbilical chamber extension.]




References

Montfort, Denys de, 1808, Conchyliologie systématique et classification methodique des coquilles: v. 1, 1xxxvii+409 p.


Museum or Author Information