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Favusellidae


Classification: pf_mesozoic -> Favusellidae
Sister taxa: Guembelitriidae, Heterohelicidae, Planomalinidae, Globigerinelloididae, Schackoinidae, Conoglobigerinidae, Chilostomellidae, Favusellidae, Praehedbergellidae, Hedbergellidae, Rugoglobigerinidae, Rotaliporidae, Globotruncanidae, hidden,
Daughter taxa (blue => in age window 0-300Ma) Granddaughter taxa
Test trochospirally coiled, globular chambers rapidly enlarging, four to five in each of the two to three whorls, sutures radial, depressed, umbilicus narrow to wide, periphery broadly rounded, peripheral outline lobulate; wall calcareous, hyaline, optically radial, perforate, without keel or poreless carinal band, surface with a distinct honeycomblike pattern of costellae, few to many tiny pores in each of the rectangular to hexagonal areas, and rare pores on the elevated reticulum; aperture an interiomarginai arch of varied extent, ranging from umbilical to spiroumbilical and bordered by a narrow lip.

Taxonomy

Citation: Favusellidae Longoria, 1974
Rank: Family

Type images:

Original description: :

Entries in the Catalog of original descriptions: Favusellidae [not in catalog yet]

Short diagnosis: Test trochospirally coiled, chambers inflated, rounded to ovate; wall cancellate, with abundantly perforated fields bordered by imperforate ridges; primary aperture umbilical to slightly extraumbilical, with an imperforate lip; umbilicus narrow to wide and deep, margin noncarinate.

Geological Range:
Last occurrence (top): within Cenomanian Stage (93.90-100.50Ma, top in Cenomanian stage). Data source: Total of range of species in this database
First occurrence (base): within Berriasian Stage (139.39-145.01Ma, base in Berriasian stage). Data source: Total of range of species in this database

Plot of occurrence data:

NB Plotting of Neptune data has been disabled on the Mesozoic pages because the dataset is both small and badly affected by a few sites with erroneous age models (our obs Huber, Petrizzo, Young, Nov 2016). The data can still be viewed via the range plottertool - tools menu.

References:

Loeblich, A.R., Jr. & Tappan, H., (1988). Foraminiferal Genera and Their Classification (Volume I-II). Van Nostrand Reinhold Co., New York, 1059 pp.


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Favusellidae compiled by the pforams@mikrotax project team viewed: 20-10-2017

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AphiaID: 720942 Nomenclatural data on WoRMS
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