Foraminifera source details
Ireland, H. A. (1956). Upper Pennsylvanian Arenaceous Foraminifera from Kansas. Journal of Paleontology. 30(4): 831-864.
280612
Ireland, H. A.
1956
Upper Pennsylvanian Arenaceous Foraminifera from Kansas
Journal of Paleontology
30(4): 831-864
Publication
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Several thousand arenaceous Foraminifera have been derived from insoluble residues of limestones in the Shawnee and Wabaunsee groups of the Virgilian series. From these 50 species and 16 genera have been identified, of which 2 genera and 26 species are new. Many forms have been found in central Texas previously, but nearly all of the Kansas forms are much smaller in size. Solution of the limestone destroyed the calcareous forms but the liberation of clean, unweathered, well-preserved specimens offsets the loss of forms which probably could not be extracted. Forms found in shale are likely to be somewhat imperfect due to weathering, solution, alteration or damage in extraction; especially thin, long, or tubular forms and delicate spherical forms. The collection shows the difference between Tolypammina and Ammovertella, for a large number of perfect specimens and hundreds of well-preserved fragments were available for study. Many species of Ammobaculites formerly transferred to the calcareous genus Endothyranella are restored to their true classification as arenaceous forms, based on evidence from the Kansas samples. The evolutionary relationships of Ammodiscus and Ammovertella are shown by attached forms of the new genus Ammodiscella, and by gradations among the large numbers of Ammovertella studied. Specimens of what are probably the earliest Astrorhiza and the earliest Vernueilina are described. The species show such a large stratigraphic range that none can be considered as index fossils for subdivision of the Virgilian, but the assemblages are more distinctive. The insoluble residues show that even the pure limestones in the Virgilian have an ample supply of quartz silt to provide material for agglutinization into tests. Foraminifera appear to favor the environment of a regressive unit of a cyclothem, but have a tolerance for the deeper water environment marked by an abundance of fusulinids. There is also a relation to the cyclothem sequences in the megacycles of the Upper Pennsylvanian of Kansas.
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Ammobaculites magnigranulus Ireland, 1956 † (original description)
Ammobaculites parallelus Ireland, 1956 † (original description)
Ammodiscella Ireland, 1956 † (original description)
Ammodiscella virgilensis Ireland, 1956 † (original description)
Ammovertella elevata Ireland, 1956 † (original description)
Ammovertella labyrintha Ireland, 1956 † (original description)
Ammovertella primaparva Ireland, 1956 † (original description)
Ammovertella prodigalis Ireland, 1956 † (original description)
Ammovertella tornella Ireland, 1956 † (original description)
Astrorhiza virgilensis Ireland, 1956 † (original description)
Bigenerina elongata Ireland, 1956 † accepted as Bigenerina perkinsi Ireland, 1960 † accepted as Eobigenerina perkinsi (Ireland, 1960) † (original description)
Bigenerina virgilensis Ireland, 1956 † accepted as Eobigenerina virgilensis (Ireland, 1956) † (original description)
Glomospira monogranula Ireland, 1956 † (original description)
Saccamminoides Ireland, 1956 † accepted as Saccamminis Ireland, 1960 † (original description)
Saccamminoides multicellus Ireland, 1956 † accepted as Saccamminis multicellus (Ireland, 1956) † (original description)
Textularia bucheri Ireland, 1956 † (original description)
Textularia elsiae Ireland, 1956 † (original description)
Textularia virgilensis Ireland, 1956 † (original description)
Thurammina diforamens Ireland, 1956 † accepted as Salpingothurammina diforamens (Ireland, 1956) † (original description)
Thurammina lawrencensis Ireland, 1956 † accepted as Parathurammina lawrencensis (Ireland, 1956) † (original description)
Thurammina rectangularis Ireland, 1956 † (original description)
Thurammina verrucosa Ireland, 1956 † (original description)
Tolypammina extenda Ireland, 1956 † (original description)
Tolypammina nodosa Ireland, 1956 † (original description)
Tolypammina polyverta Ireland, 1956 † (original description)
Tolypammina rugosa Ireland, 1956 † (original description)
Tolypammina serpens Ireland, 1956 † (original description)
Verneuilina virgilensis Ireland, 1956 † (original description)
Ammobaculites parallelus Ireland, 1956 † (original description)
Ammodiscella Ireland, 1956 † (original description)
Ammodiscella virgilensis Ireland, 1956 † (original description)
Ammovertella elevata Ireland, 1956 † (original description)
Ammovertella labyrintha Ireland, 1956 † (original description)
Ammovertella primaparva Ireland, 1956 † (original description)
Ammovertella prodigalis Ireland, 1956 † (original description)
Ammovertella tornella Ireland, 1956 † (original description)
Astrorhiza virgilensis Ireland, 1956 † (original description)
Bigenerina elongata Ireland, 1956 † accepted as Bigenerina perkinsi Ireland, 1960 † accepted as Eobigenerina perkinsi (Ireland, 1960) † (original description)
Bigenerina virgilensis Ireland, 1956 † accepted as Eobigenerina virgilensis (Ireland, 1956) † (original description)
Glomospira monogranula Ireland, 1956 † (original description)
Saccamminoides Ireland, 1956 † accepted as Saccamminis Ireland, 1960 † (original description)
Saccamminoides multicellus Ireland, 1956 † accepted as Saccamminis multicellus (Ireland, 1956) † (original description)
Textularia bucheri Ireland, 1956 † (original description)
Textularia elsiae Ireland, 1956 † (original description)
Textularia virgilensis Ireland, 1956 † (original description)
Thurammina diforamens Ireland, 1956 † accepted as Salpingothurammina diforamens (Ireland, 1956) † (original description)
Thurammina lawrencensis Ireland, 1956 † accepted as Parathurammina lawrencensis (Ireland, 1956) † (original description)
Thurammina rectangularis Ireland, 1956 † (original description)
Thurammina verrucosa Ireland, 1956 † (original description)
Tolypammina extenda Ireland, 1956 † (original description)
Tolypammina nodosa Ireland, 1956 † (original description)
Tolypammina polyverta Ireland, 1956 † (original description)
Tolypammina rugosa Ireland, 1956 † (original description)
Tolypammina serpens Ireland, 1956 † (original description)
Verneuilina virgilensis Ireland, 1956 † (original description)