This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.
Current identification/main database link: Planoglobulina carseyae (Plummer, 1931)
Original Description
Size:
Extra details from original publication
All the microspheric tests observed are biserial through out, this biserial development being larger than only the biserial series of chambers of most megalospheric tests. The specimen figured shows the early small but very dis tinct coil of about five chambers. The last chamber bears a supplementary aperture on its periphery, but no test clearly referable to the microspheric generation shows further development of the irregular late chambers char acteristic of the megalospheric form. This late stage in V. carseyae n. sp. consists of but very few chambers across the top of the biserial series. An abundant accompanying congener at the type locality for this species is more coarsely striate, has fewer biserial chambers, and numerous later irregularly arranged chambers.
The specimen "Textularia globulosa Ehrenberg" in the Carsey Collection is refigured for comparison with Ventilabrella carseyae n. sp. This specimen is completely mineralized and the aperture is obscured by mineral deposit. Though the test is somewhat deformed, it exhibits the shape and ornamentation of this new species.
V. carseyae n. sp. is very common in the Navarro formation and occurs also in the Taylor.
Plummer, H. J. (1931b). Some Cretaceous foraminifera in Texas. University of Texas Bulletin. 3101: 109-203. gsReferences:
Ventilabrella carseyae compiled by the pforams@mikrotax project team viewed: 11-9-2024
Short stable page link: https://mikrotax.org/pforams/index.php?id=132440 Go to Archive.is to create a permanent copy of this page - citation notes |
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