Abstract
Cenomanian-Turonian sediments from the Sarbay locality in north-western Kazakhstan have yielded a rich assemblage of plant fossils including well preserved flowers, fruits, and seeds of angiosperms. This work describes fossil seeds assigned to theMagnoliaceae and theIlliciaceae. Three new species of the extinct magnoliaceous genusLiriodendroidea, L. asiatica, L. costata, andL. tenuitesta, are established and new information on the previously described species,L. alata, is provided. TheLiriodendroidea seeds are closely similar to seeds of extantLiriodendron, but are distinguished in being much smaller and winged. A new genus and species,Illiciospermum pusillum, is established based on seeds with close similarity to those of the extant genusIllicium. The seeds are small, anatropous and exotestal with outer epidermis of testa forming a palisade layer. The facets of the palisade cells have deeply undulate anticlinal walls. The micropyle area is seen on the outer integument as a transverse slit placed on a raised strophiole-like structure close to the hilum. TheIlliciospermum seeds represent the first unequivocal record of theIlliciaceae in the Cretaceous. Another seed of possible illiciaceous affinity is described as aff.Illiciospermum sp.
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Frumin, S., Friis, E.M. Magnoliid reproductive organs from the Cenomanian-Turonian of north-western Kazakhstan:Magnoliaceae andIlliciaceae . Pl Syst Evol 216, 265–288 (1999). https://doi.org/10.1007/BF01084403
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DOI: https://doi.org/10.1007/BF01084403