Samiksha Jaiswal


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Domain  Eukaryota
Superfamily  Fusulinacea
Rank  Family
Class  Foraminifera
Phylum  Retaria
Order  Fusulinida
People also search for  Fusulinida, Verbeekinidae

The Schwagerinidae comprise a family of large, generally fusiform, foraminiferans included in the Fusulinacea, a superfamily of fusulinids, locally abundant during the later Carboniferous (Pennsylvanian) and most of the Permian.

M.L. Thompson (1964) gives the following diagnosis: Shell large, fusiform to irregularly cylindrical, planispiral, involute in most, irregularly uncoiled in some; spirotheca thick, composed of tectum and alveolar kariotheca; septa fluted in end zones of primitive genera, fluted completely across shell and to tops of chambers of more advanced genera; tummel singular in most forms, multiple in one genus; axial fillings absent to massive; chomata massive to slight.

As with all fusulinaceans, the Schagerinidae are a shallow water form which in places make up a significant portion of the sediment, now limestone. More familiar genera include Schwagerina, Triticites, and Parafusulina.


Schwagerinidae Wikipedia

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