Maryland Department of Natural Resources

Triassic-Jurassic Fossils

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Dryopteris heterophylla Dryopteris heterophylla Cycadeoidea marylanica Dioonites buchianus Cheirolepis m√ľnsteri Macrotaeniopteris magnifolia Equisetum rogersii
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Jurassic

Fig. 1 Dryopteris heterophylla (Fontaine) Knowlton
Fig. 2 Dryopteris heterophylla (Fontaine) Knowlton
Fig. 3 Cycadeoidea marylanica (Fontaine) Cap. & Solms. (greatly reduced)
Fig. 4 Dioonites buchianus (Ettings.) Bornemann

Triassic

Fig. 5 Cheirolepis münsteri Schimper
Fig. 6 Macrotaeniopteris magnifolia Rogers (restored)
Fig. 7 Equisetum rogersii (Bunbury) Schimper
Reference: Clark, W.B., et al., 1906, Volume VI, Maryland Geological Survey, Baltimore, MD