Locality
USGS 11611
Lat. 60° 01' 46"N Long. 165° 22' 42"W
Nunivak Island (C-1) Quad.
Description
Leaf: simple; symmetrical (?); wide ovate; apex missing (obtuse); base truncate or rounded; margin dentate but with the tooth axis inclined slightly towards the leaf apex, tooth apex obtuse, sinuses shallow rounded, teeth irregular in size and spacing, margin entire near the base; venation suprabasal, marginal, perfect actinodromous; primary midvein moderate, more or less straight; pectinal veins arising at an angle of 50° shallowly curved; pectinal abmedials arising at angles of 40-50°, curved, frequently branched, terminating at the margin, the basal abmedials weak, running approximately at right angles; superior secondary veins arising from the midvein at angles of 35-40° shallow curved, the more basal ones often branched abmedially; inferior secondaries oriented at 90° to midvein, parallel to basal pectinal abmedials; tertiary veins transverse convex, usually simple but sometimes forked; order veins indistinct, orthogonal.
Remarks
This hamamelid leaf has a base which is identical to that of the incomplete specimen that Hollick named Populites platanoides (Hollick, 1930, p. 65; Plate 34, Fig. 5; Plate 36, Fig. 3). Hollick's specimens were collected from the Kaltag Formation (Cenomanian-Turonian) but very similar fragments were described by Knowlton from the Upper Cretaceous of Montana (correlative with the Belly River Series of Canada) and named 'Platanus'? wardii (Knowlton, 1900; Plate 2, Figs. 1-4). Knowlton's Fig. 4 is particularly similar to Hollick's Plate 34, Fig. 4, and is probably of Campanian age. The most reliable comparison however can be made with Crednaria grewiopsoides as illustrated in Takhtajan (1974; Plate 68, Fig. 4; p. 143).
