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Linked specimens: USNM-689040
Current identification/main database link: Subbotina linaperta (Finlay 1939)
Original Description
Abundant in Bortonian and reaching Whangai below and Kaiata just above is a true Globigerina of the bulloides-triloba type, which is easily distinguished from the more typical forms in later horizons by a slight flattening and compression of each chamber and especially by its wide but very low and hardly open aperture directed laterally to overhang a previous chamber, instead of centrally, and with a pronounced rim. This may be called Globigerina. linaperta. n.sp. (plate 13, figs. 54-57) [Finlay 1939 No. 2]
A true Globigerina of the bulloides type, which is easily distinguished from the more typical forms in later horizons by a slight flattening and compression of each chamber and especially by its wide but very low and hardly open aperture directed laterally to overhang a previous chamber, instead of centrally, and with a pronounced rim. [Finlay 1939 No. 3]
Size: Diameter, 0.38 mm.
Finlay, H. J. (1939b). New Zealand foraminifera: Key species in stratigraphy - no. 2. Transactions of the Royal Society of New Zealand. 69(1): 89-128. gs Finlay, H. J. (1939c). New Zealand foraminifera: Key species in stratigraphy - no. 3. Transactions of the Royal Society of New Zealand. 69(3): 309-329. gs Olsson, R. K., Hemleben, C., Huber, B. T. & Berggren, W. A. (2006a). Taxonomy, biostratigraphy, and phylogeny of Eocene Globigerina, Globoturborotalita, Subbotina, and Turborotalita. In, Pearson, P. N., Olsson, R. K., Hemleben, C., Huber, B. T. & Berggren, W. A. (eds) Atlas of Eocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication. 41(Chap 6): 111-168. gs V OReferences:
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Globigerina linaperta compiled by the pforams@mikrotax project team viewed: 25-2-2021
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