Pinus sp.

Smith, MacKenzie A., Greenwalt, Dale E. & Manchester, Steven R., 2023, Diverse Fruits And Seeds Of The Mid-Eocene Kishenehn Formation, Northwestern Montana, Usa, And Their Implications For Biogeography, Fossil Imprint 79 (1), pp. 37-88 : 46

Pinus sp. S2

Text-fig. 3n Material. USNM PAL 620010, 776567. Locality. Park.

D e s c r i p t i o n. Winged seed, linear, 9.2–15.0 mm long, 3.3–8.0 mm wide at widest point; seed body elliptical on proximal end, 3.1–6.0 mm long, 1.7–6.6 mm wide; widest point of wing in distal half of wing; medial wing begins in distal quarter of seed body and abmedial wing edge begins halfway down seed body.

R e m a r k s. The small size of the seed and small disarticulation between the seed body and the wing places this one in Wolfe and Schorn’s (1990) atypical Pinus 4 group. The wing’s widest point in the distal half of the seed differs from Pinus sp. S1 where it is in the proximal half.

Figures

Text-fig. 3. Pinaceae from the Kishenehn Formation. a: USNM PAL 621424 Abies sp. seed. Scale bar 5mm. b: USNM PAL 621991 Larix sp. winged seed. Scale bar 2mm. c: USNM PAL 622093cf. Larix sp. ovuliferous cone. Scale bar 3mm. d: USNM PAL 776558 Picea sp. 1 winged seed. Scale bar 3mm. e: USNM PAL 776565 Picea sp. 2 seed. Scale bar 5mm. f: USNM PAL 619964 Pinaceae Cone 1. Scale bar 1cm. g: USNM PAL 776557 Pinaceae Cone 2. Scale bar 1cm. h: USNM PAL 620025 Pinaceae Cone 3. Scale bar 1cm. i: USNM PAL 776556 Pinus sp. C1. Scale bar 2cm. j: DMNH EPI. 48178 Pinus sp. L1 3-leaf fascicle. Scale bar 2cm. k: USNM PAL 776570 Pinus sp. C2 Pinus subg. Strobus female cone. Scale bar 1cm. l: USNM PAL 621980 Pinus subg. Strobus, Pinus sp. S1 winged seed. Scale bar 3mm. m: USNM PAL 622300 Pinus subg. Strobus, Pinus sp. S1 winged seed. Scale bar 5mm. n: USNM PAL 776567 Pinus subg. Strobus, Pinus sp. S2 seed. Scale bar 2mm. o: USNM PAL 620785 Pinus subg. Strobus, Pinus sp. S3 winged seed, with seed body disarticulated. Scale bar 2mm. p: USNM PAL 626064 Pinus subg. Pinus female cone scale Pinus sp. C3. Scale