Seletya sp.

Heřmanová, Zuzana, Kvaček, Jiří, Dašková, Jiřina & Halamski, Adam T., 2020, Plant reproductive structures and other mesofossils from Coniacian / Santonian of Lower Silesia, Poland, Palaeontologia Electronica (a 61) 23 (3), pp. 1-23 : 7

Seletya sp.

Figure 3H, I

Description. Seeds small, 2.0– 2.6 mm long, 1.6– 1.4 mm broad, flattened, ovate to sub-circular showing a very narrow inconspicuous wing ( Figure 3H, I ). Locule curved campylotropous, hilum and micropyle basiventral, hilum circular, broad, micropyle pointed and conspicuous. Seed coat rugulose, pits quadrangular or polygonal, rarely oblong, arranged in regular parallel grooves following curvature of seeds.

Remarks. The described seeds are reminiscent of Seletya krishtofovichii from the Cenomanian of Kazakahstan ( Dorofeev, 1979) and Santonian of Quedlinburg ( Knobloch and Mai, 1986) in number of characters e.g. in having a very narrow wing and a conspicuous micropyle. An ovuliferous cone comparable to that described by Kunzmann (1999) attached to twigs of Geinitzia formosa was described from the studied area and stratigraphic horizon (Rakowice Małe) by Halamski et al. (2020). The seeds of similar shape are found in ovuliferous cones Fricia nobilis Velenovský , described from the Turonian of the Bohemian Cretaceous Basin ( Kvaček, 2013).

Range. Late Coniacian or early Santonian age.

Occurrence. Żeliszów locality.

Material studied. K 3012, K 3013; the material is housed in the National Museum Prague.

Figures

FIGURE 3. Conifers (A) Cunninghamites cf. squamosus terminal fragment of twig, no. K2948, scale bar 1 mm (B) Cunninghamites cf. squamosus isolated leaf with leaf cushion, no. K2956, scale bar 1 mm (C) Cunninghamites cf. squamosus adaxial cuticle showing two bands of stomata, no. K2956, scale bar 100 µm (D) Geinitzia formosa, fragment of twig, no. K2958a scale bar 1 mm (E) Geinitzia formosa, isolated leaf with keel, no. K2958b scale bar 1 mm (F) Geinitzia formosa, detail of abaxial cuticle showing two irregular stomatal bands, no. K2958b scale bar 100 µm (G) Alapaja sp. seed, no. K2962 scale bar 1 mm (H) Seletya sp. seed no. K 3012 scale bar 1 mm (I) Seletya sp. seed no. K 3013, scale bar 1 mm. All specimens from Żeliszów locality.