Calcitornella cf. elongata Cushman and Waters, 1928a

Vachard, D, Krainer, K & Lucas, SG, 2015, Late Early Permian (late Leonardian; Kungurian) algae, microproblematica, and smaller foraminifers from the Yeso Group and San Andres Formation (New Mexico; USA), Palaeontologia Electronica (English ed.) 3 (8), pp. 1-77 : 40

publication ID

https://doi.org/ 10.26879/433

publication LSID

lsid:zoobank.org:pub:76D74301-4F2F-4A01-ADE5-EF52F8B53659

persistent identifier

https://treatment.plazi.org/id/03F9582F-FD7C-FFDC-FF1A-FD713728F9DF

treatment provided by

Felipe

scientific name

Calcitornella cf. elongata Cushman and Waters, 1928a
status

 

Calcitornella cf. elongata Cushman and Waters, 1928a View in CoL

Figures 23.5 View FIGURE 23. 1, 3, 7-8 , 34.19 View FIGURE 34. 1-5

? 1928a Calcitornella elongata Cushman and Waters , p. 47-48, pl. 6, fig. 5.

? 1985 Calcitornella elongata Cushman and Waters ; Palmieri in Foster, Palmieri and Fleming., p. 80, pl. 5, figs. 11, 12, 13.

v. 2013b Calcitornella cf. elongata Cushman and Waters ; Vachard, Krainer and Lucas, p. 348 (no illustration).

Description. Poorly developed glomospiral initial stage followed by an uncoiled tubular last part arranged symetrically around the initial coiling (D = 0.67 mm; w = 0.29 mm). No umbilicus. Four whorls. Lateral sides of spire flat to slightly inflated. Peripheral margin rounded. Uncoiling in form of a tubular chamber in which the diameter is equal to the height of the last planispiral whorl (h = 0.10 mm), erect, vertical, tubular, aligned with the axis of coiling. No secondary incrustation of lateral walls. Wall originally porcelaneous, currently neosparitized (s = 0.01 mm).

Occurrence. Late Pennsylvanian of Texas and Ecuador. Early Permian of Australia. Middle Permian of Cambodia. Early?-middle? Kungurian of New Mexico (Yeso Group: sample MG 10-20a. San Andres Fm: sample MLY(2) 5a-24).

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