TABLE 1. Occurrences of angiosperm leaf megafossils at the four localities of the Dakota Formation, Braun’s ranch, Kansas (Wang and Dilcher 2006a), Hoisington, Kansas, Rose Creek, Nebraska (Upchurch and Dilcher 1990), and Courtland, Minnesota (Wang and Dilcher 2009). A plus sign “+” indicates the presence of a taxon at a locality.

Taxon
Genus/species
Locality
Hoisington Braun Ranch Rose Creek Courtland
Crassidenticulum decurrens + + +  
Crassidenticulum cracendentis       +
Crassidenticulum trilobum + +    
Crassidenticulum cf. trilobum +      
Crassidenticulum landisiae   +    
Yangia glandifolia   +    
Densinervum kaulii     + +
Landonia calophylla     +  
Landonia callii   +    
Aquatifolia fluitans +      
Brasenites kansense +      
Longstrethia varidentata     +  
Longstrethia aspera +      
Pabiania variloba +   +  
Setterholmia rotundifolia       +
Setterholmia deleta       +
Manchesterii macrophylla       +
Pandemophyllum kvacekii     + +
Pandemophyllum attenuatum     + +
Pandemophyllum sp.     +  
Rogersia dakotensis +     +
Rogersia parlatorii + +    
Rogersia lottii   +    
Wolfiophyllum daphneoides   +    
Wolfiophyllum heigii   +    
Wolfiophyllum pfaffianum +     +
Jarzenia kanbrasota +     +
New genus A     +  
Liriophyllum siemii       +
Liriophyllum kansense +      
cf. Paleonelumbo macroloba +      
Credneria quadrata   +    
Credneria cyclophylla +     +
Dischidus quinquelobus   +    
Eoplatanus serrata   +    
Aspidiophyllum denticulatum   +    
Sapindopsis powelliana comb. nov. +      
Sapindopsis retallackii sp. nov. +      
Anisodromum wolfei +   +  
Anisodromum upchurchii sp. nov. +      
Anisodromum schimperi comb. nov. +      
Citrophyllum doylei     +  
Citrophyllum aligera +      
Trochodendroides rhomboideus       +
Trochodendroides elliptica   +    
Wingia expansolobum comb. nov. +   +  
Wingia cf. expansolobum +      
Acritodromum ellipticum     +  
Crepetii minudentis       +
Didromophyllum basingerii     +  
Glandilunatus kansense   +   +
Gooleria crasseprima       +
Hickeyphyllum sandersii   +    
Hickeyphyllum imhofii   +    
Kladoneuron gooleri   +    
Reynoldsiophyllum masonii     +  
Reynoldsiophyllum nebrascense     +  
New genus B     +  
Dicotylophyllum aliquantuliserratum     +  
Dicotylophyllum angularis     +  
Dicotylophyllum braunii   +    
Dicotylophyllum carlsonii       +
Dicotylophyllum coughlantii       +
Dicotylophyllum fragile   +    
Dicotylophyllum huangii   +    
Dicotylophyllum leptovenum +     +
Dicotylophyllum myrtophylloides     +  
Dicotylophyllum rosafluviatilis     +  
Dicotylophyllum skogii sp. nov. +      
Dicotylophyllum tulipiferum       +
70 24 21 21 20

 

 

TABLE 2. Comparisons of leaf shape and venation of Rogersia and Wolfiophyllum species (modified from table 1 of Wang and Dilcher, 2009).

Taxon Leaf shape 2º venation Number of 2º veins Loops near margin Intercostal region Intersecondary veins Tertiary veins
Wolfiophyllum pfaffianum very narrow elliptic eucamptodromous 8 no no common reticulate
Wolfiophyllum heigii lorate or linear eucamptodromous 10 to 12 no no present percurrent or exmedially ramified
Wolfiophyllum daphneoides narrow ovate to lanceolate eucamptodromous 5 to 7 no no common, simple Not observed
Rogersia dakotensis linear oblong brochidodromous >10 two series, elongate area well defined present percurrent, more or less irregular
Rogersia lottii narrow elliptic festooned brochidodromous 10 one series well defined present, simple random reticulate
Rogersia parlatorii oblong, lorate to linear brochidodromous >10 irregular elongate and admedially oriented common intergrading with 2º and 4º

 

 

TABLE 3. List of quillworts, ferns, and conifers from the Hoisington III locality, Kansas.

  Taxa Organ References
Quillworts Isoëtites phyllophila Skog, Dilcher and Potter Rhizome Skog et al. (1992), Skog and Dilcher (1994)
Ferns Anemia dicksoniana (Heer) Krassilov Leaf Skog and Dilcher (1994)
Anemia dakotensis (Rushforth) Skog and Dilcher
Gleichenia camptoniaefolia Debenham and Ettinghausen) Heer
Gleichenia delicatula Heer
Matonidium brownii Rushforth
Marsilea* johnhallii Skog and Dilcher Skog and Hill (1992), Skog and Dilcher (1994); *Hermsen et al. (2014) emended the generic name to Marsileaceaephyllum
Conifers Pinus sp. Leaf (needle fragments) Mihai E. Popa (in preparation)
Peltaconus conditus Lesquereux Seed cone
? Pityanthus Pollen cone
Brachyphyllum crassum (Lesquereux) Lesquereux Leaf
Geinitzia sp.
? Athrotaxites sp. B