Spiny fruits revealed by nano-CT scanning: Pseudoanacardium peruvianum (Berry) gen. et comb. nov. from the early Oligocene Belén flora of Peru
 
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1
Florida Museum of Natural History, Dickinson Hall, P.O. Box 117800, Gainesville, Florida, U.S.A
2
University of Nevada, Department of Geological Sciences & Engineering, 1664 N. Virginia Street, Reno, NV 89557-0172, U.S.A.
Online publication date: 2018-06-19
Publication date: 2018-06-19
 
Acta Palaeobotanica 2018; 58(1): 41–48
 
ABSTRACT
Fossil fruits formerly described as cashews from the Oligocene of Peru are reinvestigated based on the original specimens and newly collected materials. The recovery of an outer spiny layer, preserved in the sedimentary molds surrounding the locule casts, indicates that these disseminules do not represent Anacardium. Imagery from nano-CT scans of the specimens documents a distinctive morphology which does not resemble any fruits or seeds of Anacardiaceae. We describe the morphology in more detail and reassign the fossils to an extinct genus, Pseudoanacardium gen. nov., of uncertain familial affinity. Pseudoanacardium peruvianum (Berry) comb. nov. was a prominent member of the Belén carpoflora, which also included palms plus Annonaceae, Euphorbiaceae, Humiriaceae, Leeaceae, Icacinaceae, Rutaceae and Vitaceae.
 
REFERENCES (13)
1.
Berry E.W. 1924. An Oligocene cashew nut from South America. Am. J. Sci., 8: 123–126.
 
2.
Berry E.W. 1927. Petrified fruits and seeds from the Oligocene of Peru. Pan-Am. Geol., 47: 121–132.
 
3.
Berry E.W. 1929. Early Tertiary fruits and seeds from Belén, Peru. Johns Hopkins Univ. Stud. Geol., 10: 139–172.
 
4.
DOWeld A.B. 1996. Sapindaceae: 317–339. In: Takhtajan A., & M. Danilova (eds), Anatomia Seminum Comparativa vol 5. Dicotyledones. Rosidae I. Saint Petersburg.
 
5.
Herrera F., Manchester S.R., Vélez-Juarbe J. & Jaramillo C. 2014. Phytogeographic history of the Humiriaceae (Part 2). Int. J. Plant Sci., 175(7): 828–840.
 
6.
Herrera F., Manchester S.R., Jaramillo C., MacFadden B. & da Silva-Caminha S.A. 2010. Phytogeographic history and phylogeny of the Humiriaceae. Int. J. Plant Sci., 171(4): 392–408.
 
7.
JACQUES F.M.B. 2009. Survey of menispermaceous endocarps. Adansonia, sér. 3, 31(1): 47–87.
 
8.
Manchester S.R., Wilde V. & Collinson M.E. 2007. Fossil cashew nuts from the Eocene of Europe: Biogeographic links between Africa and South America. Int. J. Plant Sci., 168(8): 1199–1206.
 
9.
Manchester S.R., Herrera F., Fourtanier E., Barron J. & Martinez J.-N. 2012a. Oligocene age of the classic Belén fruit and seed assemblage of north coastal Peru based on diatom biostratigraphy. J. Geol., 120(4): 467–476.
 
10.
Manchester S.R., Chen I. & Lott T.A. 2012b. Seeds of Ampelocissus, Cissus, and Leea (Vitales) from the Paleogene of western Peru and their biogeographic significance. Int. J. Plant Sci., 173(8): 933–943.
 
11.
Sorensen A.E. 1986. Seed dispersal by adhesion. Ann. Rev. Ecol. Syst., 17: 443–463.
 
12.
Stull G.W., Herrera F., Manchester S.R., Jara­millo C. & Tiffney B.H. 2012. Fruits of an “Old World” tribe (Phytocreneae; Icacinaceae) from the Paleogene of North and South America. Syst. Bot., 37(3): 784–794.
 
13.
Woodcock D.W., Meyer H.W. & Prado Y. The Piedra Chamana fossil woods (Eocene, Peru). Int. Assoc. Wood Anat. J., 38: 313–365.
 
 
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