Pazliopsis reyi E.M.Friis, P.R.Crane et K.R.Pedersen
Plant Fossil Names Registry Number: PFN000093
Act LSID: urn:lsid:plantfossilnames.org:act:93
Genus: Pazliopsis E.M.Friis, P.R.Crane et K.R.Pedersen
Reference: Friis, E. M., Crane, P. R. & Pedersen, K. R. (2018): Extinct taxa of exotestal seeds close to Austrobaileyales and Nymphaeales from the Early Cretaceous of Portugal. – Fossil Imprint 74(1–2): 135–158.
Page of description: 143
Illustrations or figures: Text-figs 3f–i, 4c, d
Name is type for
Holotype S171534 (Torres Vedras sample 043), Palaeobotanical Collections, Department of Palaeobiology, the Swedish Museum of Natural History, Stockholm, Sweden
Figures: text-fig. 3g
Note: Paratypes: S174735 (Torres Vedras sample 043), S174636, S174637, S175024 (Torres Vedras sample 044), S175120 (Torres Vedras 144), S174632 (Torres Vedras sample 298); deposited in Palaeobotanical Collections, Department of Palaeobiology, the Swedish Museum of Natural History, Stockholm, Sweden.
Fruit thin-walled, one-seeded. Seeds small, anatropous, bitegmic and exotestal. Seeds bilaterally symmetrical with dorsiventral plane of symmetry. Seed surface with faint longitudinal ridges. Raphe indistinct externally. Hilum and micropyle separated by broad zone of testal sclerenchyma. Hilar scar large, elongate and prominent with expanded testal tissue beneath the hilar scar, lacking a hilar rim. Micropyle formed by the inner integument (tegmen) and marked on the seed surface by a transverse slit through the outer integument (testa) adjacent to the hilar scar. Testa formed from an outer layer (exotesta) of palisade-shaped sclerenchyma cells and an inner thin layer of thin-walled parenchyma cells (mesotesta/endotesta). Palisade cells of exotesta with evenly thickened anticlinal walls and a straight lumen. Anticlinal walls of palisade-shaped sclerenchyma strongly undulate toward the inside and toward the outside, resulting in stellate-undulate facets and a jigsaw puzzle-like pattern on the seed surface. Tegmen thin.
In recognition of Jacques Rey (*1940, †2018) for his important contributions to understanding the Cretaceous geology of Portugal.
Cretaceous, Lower Cretaceous
late Barremian–early Aptian
Type horizon: Lower part of the Almargem Formation
Torres Vedras (NE of Forte de Forca; 39°06′13″N, 9°14′47″W)
Plant fossil remain
macro- and meso-fossils-embryophytes except wood
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