de Klasz 1953 pl5 f1.jpg
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de Klasz 1953 pl5 f1.jpgCurrent identification/main database link: Planoglobulina multicamerata (De Klasz, 1953)
Translated using Google translate from German. Original text below Diagnosis: A species with the characteristics of the genus Ventilabrella with the following peculiarities: The number of chambers is much larger than in the other species of the genus. The two-line part is relatively small. The adult part is very flat compressed. Description: The test is subtriangular, sometimes wider than high. After a small, only in diaphanous light clearly visible hiserialen beginning part widened it quickly. The adult stage consists of a large number of fan-shaped in a plane arranged chambers. At ¼ height of the case, where this shows its greatest thickness, these chambers are somewhat bloated. The adult chambers are separated by weakly serrated seams, some of which are unclear. The shape of the chambers is irregular. Ornamentation is almost always absent in typical individuals; at most, one occasionally notices a slight longitudinal striation, especially at the more inflated chambers of the thicker chamber portion. Translated using Google translate from German. Original text below Relationships: This species is m. E. Planoglobulina acervulinoides (EGGER). There are occasional transitions between the two species. Remarks: In addition to the Gerhardsreuter layers, the higher strata of the Eisenärzter area also carry this species in locations in which Pseudotextularia intermedia n. Sp. (see below) and Planoglobulina acervulinoides (EGGER). Together with the last two species I found valveabrella multicamerata n. Sp. also in a sample from the Pyrenees (near Gan), as well as in a Mendez-Shale sample from Mexico. (Locus typicus: "Km 629.3 on San Luis Potosi- Tampico Railway." Beds are exposed in cuttings of railway, 300 m East of Mendez Station, Veracruz. ").
Original Description
Beschreibung : Das Gehäuse ist subtriangular, bei manchen Eiemplaren breiter als hoch. Nach einem kleinen, nur in durchfallendem Licht deutlich sichtbaren hiserialen Anfangsteil verbreitert es sich rasch. Das Erwachsenenstadium besteht aus einer großen Anzahl fächerförmig in einer Ebene angeordneter Kammern. In ¼ Höhe des Gehäuses, dort, wo dieses seine größte Dicke zeigt, sind diese Kammern etwas aufgebläht. Die adulten Kammern sind durch schwach eingeriefte Nähte getrennt, die teilweise undeutlich verlaufen. Die Gestalt der Kammern ist unregelmäßig. Eine Ornamentierung fehlt bei typischen Individuen fast immer; höchstens bemerkt man gelegentlich eine schwache Längsstreifung, besonders an den stärker aufgeblähten Kammern des dickeren Kammeranteils.
Size:
Extra details from original publication
Beziehungen : Diese Art steht m. E. Planoglobulina acervulinoides (EGGER) nahe. Man findet gelegentlich Übergänge zwischen beiden Arten.
Bemerkungen : Außer den Gerhardsreuter Schichten führen auch die höheren Schichten des Eisenärzter Gebietes diese Art und zwar in Lagen, in denen auch schon Pseudotextularia intermedia n. sp. (s. unten) und Planoglobulina acervulinoides (EGGER) vorkommen. Mit den beiden letzteren Arten zusammen fand ich Ventilabrella multicamerata n. sp. auch in einer Probe aus den Pyrenäen (Nähe von Gan), sowie in einer Mendez-Shale-Probe aus Mexico. (Locus typicus: "Km. 629,3 on San Luis Potosi- Tampico Railway. Beds are exposed in cuttings of railway, 300 m East of Mendez Station, Veracruz. ").
de Klasz, I. (1953a). Einige neue oder wenig bekannte Foraminiferen aus der helvetischen Oberkreide der bayerischen Alpen, südlich Traunstein (Oberbayern). Geologica Bavarica. 17: 223-244. gs References:
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Ventilabrella multicamerata compiled by the pforams@mikrotax project team viewed: 11-9-2024
Short stable page link: https://mikrotax.org/pforams/index.php?id=132446 Go to Archive.is to create a permanent copy of this page - citation notes |
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