Piolencipollis sp.

Halamski, Adam T., Kvaček, Jiří, Svobodová, Marcela, Durska, Ewa & Heřmanová, Zuzana, 2020, Late Cretaceous mega-, meso-, and microfloras from Lower Silesia, Acta Palaeontologica Polonica 65 (4), pp. 811-878 : 851-852

Piolencipollis sp.

Fig. 19L .

Remarks.—Due to the mediocre quality of printing in Raniecka-Bobrowska (1984, 1989) we illustrate again a specimen from Palynoassemblage B. Representatives of the genus Piolencipollis are diagnostic for the Santonian.

Order unknown

Genus Tricolporites Cookson, 1947a

Type: Tricolporites sphaerica Cookson, 1947a ; late Eocene–Miocene, Maryvale, Victoria, Australia .

Remarks.—We follow Stover and Partridge (1973: 258) and de Villiers and Cadman (1997: 90) in considering Tricolporites as a valid genus introduced by Cookson (1947a: 195; publication date September 1947). Alternatively it has been considered either as a valid genus introduced by Cookson (1947b: 134) with Tricolporites prolata Cookson, 1947b (Tertiary, Waterfall Gorge near Port Jeanne d’Arc, Kerguelen Islands) as the type ( Cookson 1947b, publication date December 1947; Tschudy 1973a: 30), a genus in- validly proposed by Cookson (1947a, b) but validated by Srivastava (1972: 10) with T. prolata as the type species Potonié 1960: 154, 1975: 116), or a nomenclaturally valid genus with T. sphaerica as the type species but synonymous with Rhoipites Wodehouse, 1933 ( Kemp and Harris 1977: 36; Pocknall and Crosbie 1982: 7). Revision of this genus is out of scope of the present paper.

Tricolporites sp.

Fig. 18Y.

Remarks.— Tricolporites is a form genus of dicotyledonous pollen. Detailed investigation is often conducted using LM and SEM studies on the same specimen ( Zetter 1989; Zetter et al. 2002).

Class Monocotyledoneae de Candolle, 1817

Order Arecales Bromhead, 1840

Family Palmae Jussieu, 1789

= Arecaceae Berchtold and Presl, 1820 )

Genus Spinizonocolpites Muller, 1968

Type: Spinizonocolpites echinatus Muller, 1968 ; Engkilili Formation, Cretaceous–Paleocene (after Muller 1968; upper Paleocene to middle Eocene according to Hutchinson 2005: 48–49 and references therein); Lupar river area, Sarawak, Borneo, Malaysia.

Remarks.— Spinizonocolpites is the original spelling ( Muller 1968: 11) and must be retained; frequently used Spinozonocolpites (e.g., Graham 2011: 337) is incorrect.

Spinizonocolpites sp.

Fig. 18J.

Remarks.—The genus Spinizonocolpites is used for dispersed pollen of the palm genus Nypa Steck, 1757 . Up to now, the oldest confirmed reports of Nypa were from the Maastrichtian (possibly upper Campanian; see review in McLoughlin et al. 2018).

Spermatophytes, division, class, order, or family unknown

Genus Catinipollis Krutzsch, 1966b

Type: Catinipollis geiseltalensis Krutzsch, 1966b ; middle Eocene ; Geiseltal, Sachsen-Anhalt, Germany .

Catinipollis lwowekensis Raniecka-Bobrowska, 1984 Fig. 19H .

Remarks.—This species was described from borehole KB-13, at a depth of 94.5 m. Due to the mediocre quality of print in the protologue we are reproducing two of the original photographs herein. The holotype is poorly preserved. We have not found any similar pollen in Palynoassemblage A. The only other species of this genus is the type species. The botanical affinities of these pollen grains are unknown ( Krutzsch 1966b: 43–44).

Figures

Fig. 19. Spores (A–G, K, N–O) and pollen (H–J, L–M, P) from the North Sudetic Basin, Lower Silesia, Poland, Palynoassemblage B (lower–mid- dle Santonian). A. Cingutriletes clavus Dettmann, 1963, borehole KB18, depth 42.3 m. B. Echinatisporis sp., borehole KB18, depth 42.3 m. C. Baculatisporites parvopunctatus Weyland and Greifeld, 1953, borehole KB18, depth 29.8 m. D. Cicatricosisporites potomacensis Brenner, 1963, borehole KB13, depth 88.6 m. E. Klukisporites pseudoreticulatus Couper, 1958, borehole KB13, depth 94.5 m. F. Trilobosporites sp., borehole KB18, depth 38.3 m. G. Distaltriangulisporites perplexus (Singh, 1964) Singh, 1971, borehole KB13, depth 94.5 m. H. Catinipollis lwowekensis Raniecka- Bobrowska, 1984, holotype (slide 13/11, 48.5/110.2; repository unknown), borehole KB18, depth 35.0 m; equatorial focal plane (H1), focal plane on the surface (H2). I. Cerebropollenites mesozoicus (Couper, 1958) Nilsson, 1958, borehole KB17, depth 47.5 m. J. aff. Pecakipollis sp., borehole KB8, depth 77.5 mm. K. Clavifera cf. triplex (Bolkhovitina, 1953) Bolkhovitina, 1966, borehole KB13, depth 28.6 m. L. Piolencipollis sp., borehole KB16, depth 99 m; specimen illustrated by Raniecka-Bobrowska (1984, 1989: pl. 218: 2). M. Ephedripites virginiaensis Brenner, 1963, borehole KB18, depth 39.3 m. N. Cicatricosisporites dorogensis Potonié and Gelletich, 1933, borehole KB17, depth 38.0 m. O. Foveogleicheniidites sp., borehole KB18, depth 38.3 m. P. Podocarpidites sp., borehole KB8, depth 84.3 m. Photographs from the unpublished report by Raniecka-Bobrowska (1968).