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: Alicantina lozanoi (Colom 1954)
Diagnosis: Small species with globular chambers arranged in a relatively loose trochospire that is quite high in the adult specimens, with more than two whorls on the dorsal side.
Original Description
Characters: Species rather small with a diameter ranging between 0.35– 0.40 mm in height in specimens with a low trochospire and up to 0.45 mm in specimens with higher trochospire. Spiral side clearly trochoid with about 10–15 clearly visible cham- bers developing very regularly and increasing gradually in size in about two whorls. Chambers are globular, somewhat flattened on the outside, with 5–6 chambers in the last whorl, rarely 4 and only in the case of specimens that are clearly juvenile. In the same portion of the shell, the majority of the specimens show a marked rise of the inner portion and, in turn, a steep slope with respect to the chambers of the last whorl, with the presence of all terms of variability. The gen- eral shape of the shell is rather globular with very appressed chambers with those of the last whorl being higher than wide. The umbilical side shows a deep depression to the side of the last chamber next to the small, arched aperture, which is not always visible. Surface is smooth, but finely reticulate.
Size:
Colom, G. (1954). Estudio de las biozonas con foraminiferos del Terciario de Alicante. Boletin del Instituto Geologico y Minero de Espana. 66: 1-279. gs Soldan, D., Petrizzo, M. R. & Premoli Silva, I. (2018). Alicantina, a new Eocene planktonic foraminiferal genus for the lozanoi group. Journal of Foraminiferal Research. 38(1): 41-52. gsReferences:
Globigerina lozanoi compiled by the pforams@mikrotax project team viewed: 8-12-2024
Short stable page link: https://mikrotax.org/pforams/index.php?id=130550 Go to Archive.is to create a permanent copy of this page - citation notes |
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