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THE JURASSIC BOULDER BEDS OF EAST SUTHERLAND
J. Saxon
JURASSIC PLANTS FROM EAST SUTHERLAND, A CHECK LIST
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 I     PTERIDOPHYTA

   A. EQUISETALES

Equisetites beani Bunb.             Brora, Oxfordian, Corallian

E. columnaris Brongn.                 "

E. broraensis Stopes                  "

 

  B.  HYDROPTERIDEAE ? 

Sagenopteris phillipsi (Brongn)     Kimmeridgian

  C.  FILICINEAE

1.       Dipteridinae

Hausmannia dichotoma Dunk.    Kimmeridgian

H. buchi (And.)                   "

H. richteri (seward)              "

Dictyophyllum sp.             Helmsdale, Kimmeridgian

Brora, Oxfordian, Corallian

 2.    Matonineae                    Kimmeridgian

Laccopteris dunkeri Schenk.       "

Matonidium goepperti (Ett.)       "

 3.                Gleicheniaceae

            Gleichenites boodlei(seward)     "

G. cycadina (Schenk)              "

 4.                Cycatheaceae

Coniopteris hymenophylloides(Brongn.) Culgower, Kimmeridgian

Brora Oxfordian, Corallian

C. quinqueloba (Phill.)                   "

C. arguta.(Lind. and Hutt.)              "

 5.    Osmundaceae

Todites williamsoni (Brongn.)       Culgower, Kimmeridgian

Brora Oxfordian, Corallian

 

Osmundaceae?

Cladophlebis denticulata (Brongn.)        "

 

6.    Marattiaceae

Marattiopsis boweri Seward          Culgower, Kimmeridgian

Brora Oxfordian, Corallian

 

7.                Ferns of uncertain affinity

Cladophlebis of haiburnensis (Lind. and Hutt.)

C. of distans (Heer)                Kimmeridgian

Rhizomopteris gunni (Seward)

Spenopteris onychiopsoides(Seward)        "

Taenopteris sp                            "

Aphlebia sp                               "

Spiropteris sp                            "

 

8.                Ferns of uncertain affinity

Cladophlebis of haiburnensis (Lind. and Hutt.)

C. of distans (Heer)                Kimmeridgian

Rhizomopteris gunni (Seward)

Spenopteris onychiopsoides(Seward)        "

Taenopteris sp                            "

Aphlebia sp                               "

Spiropteris sp                            "

 

D.   FILICINEAE OR PTERIDOSPPRMAE ?                 

Thinnfeldia rhomboidalis Ett.                   Kimmeridgian

Th. arctica Heer                                    "

Th.de Geeri (Nath.)                                 "

Dichopteris pomelii  (Sap.)                         "

 

II    GYMNOSPERMAE

 

A.    GINKGOALES

Ginkgo Sibirica Heer                                "

G. digitata (Brongn.)                               "

Baiera brauniana (Dunk.)                            "

 

B.    CONIFERALES

1.    Araucariinae

Araucaria milleri (Seward)                    "

Araucarioxylon sp                             "

Araucariinae?

Brachyphyllum sp.                             "

Elatides curvifolia (Dunk.)                   "

E. sternbergiana (Schenk)                     "

 

            2.    Conifers of uncertain position

                  Masculostrobus zeilleri Seward                "

                  Taxites jeffreyi (Seward)                     "

                  T. of gramineus (Heer)                        "

                  Sphenolepidium of kurrianum (Dunk.)           "

                  Coniferocaulon colymbaceforme Fliche          "

                  Cheirolepis sp.              Brora, Oxfordian, Corallian

                                                           

            3     Abietineae

 

                  Pinites sp                                Kimmeridgian

 

      C.    CYCADOPHYTA

 

            1.    Bennettitales

                  Williamsonia pecten (Phill)                   "

                  Bennettites peachianus Carr.                  "

 

            2.    Cycadophyta incertae sedi

             

                  Pseudoctenis eathiensis (Rich.)               "

                  Ps. crassinervis Seward                       "

                  Zamites buchianus Ett.                        "

                  Z. carruthersi Seward                         "

                  Z. sp                        Brora, Oxfordian, Corallian

                  Pterephyllum nathorsti Seward             Kimmeridgian

                  Nilssonia orientalis Heer                     "

                  N. brevis Brongn.                             "

                  N. of compta (Phill.)                         "

                  N. mediana Leck)                              "

                  Bucklandia milleriana Carr. Brora, Oxfordian, Corallian

 

Yatesia joassiana Carr.       Brora, Oxfordian, Corallian

Otozamites sp                             Kimmeridgian

O. sp                         Brora, Oxfordian, Corallian

Dioonites dunkerianus Geopp.        Kimmeridgian

Cycadospadix pasinianus Zig.              "

 INCERTAE SEDIS

Podzamites sp.                                      "

 
This article was first published in the Caithness Field Club Bulletin April 1983