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- W2077881387 abstract "The conifer genus Pseudohirmerella Arndt is based on ovulate cone scales of the type species, Pseudohirmerella platysperma (Mägdefrau) Arndt, from the Upper Triassic of Germany, which bear five distal lobes and two paired structures represented by bulges on the adaxial surface. The paired structures were first described as seeds, but have recently been re-interpreted as arils by Arndt. Similar scales from the Passaic Formation at Milford, NJ, USA were described as Glyptolepis delawarensis Bock, and the new combination Pseudohirmerella delawarensis is proposed. A relatively complete concept of Pseudohirmerella is presented, which includes ovulate cones, possible associated pollen cones, associated shoots with Pagiophyllum–Brachyphyllum morphotype leaves and associated, anatomically preserved wood. Based on the ovulate cone morphology and the presence of organic matter lining the concavities on the scale rather than the corresponding bulges on the counterparts, it is likely that the supposed seeds or arils of Pseudohirmerella are actually casts of empty, seed-bearing depressions. Cheirolepidiaceous affinities are likely based on ovulate cone scale morphology, persistent pollen cones, foliage type and details of wood anatomy. The derived ovulate cone scale morphology of Pseudohirmerella indicates a substantial, but mostly undocumented, Triassic diversification of the Cheirolepidiaceae." @default.
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- W2077881387 date "2004-06-01" @default.
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- W2077881387 title "The structure and phylogenetic significance of the conifer Pseudohirmerella delawarensis nov. comb. from the Upper Triassic of North America" @default.
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- W2077881387 doi "https://doi.org/10.1016/j.revpalbo.2004.02.005" @default.
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