Prepinus parlinensis, sp. nov., from the Late Cretaceous of New Jersey

Two coniferous dwarf shoots from the Raritan Formation (Late Cretaceous) of Parlin, New Jersey, represent a new species of the extinct pinacean genus Prepinus. Prepinus parlinensis, sp. nov., has a much reduced axis bearing a terminal cluster of 25 or more helically disposed needle leaves. Numerous...

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Bibliographic Details
Published in:Botanical gazette (Chicago, Ill.) Ill.), 1977-09, Vol.138 (3), p.352-356
Main Author: Robison, Coleman R.
Format: Article
Language:English
Subjects:
Epidermal cells
Fossils
Holotypes
Mesophyll cells
Parenchyma
Pith
Resin canals
Tracheids
Vascular bundles
Xylem
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Description
Summary:Two coniferous dwarf shoots from the Raritan Formation (Late Cretaceous) of Parlin, New Jersey, represent a new species of the extinct pinacean genus Prepinus. Prepinus parlinensis, sp. nov., has a much reduced axis bearing a terminal cluster of 25 or more helically disposed needle leaves. Numerous imbricate cataphylls occur below the cluster of needles and entirely surround the dwarf shoot axis. The fossils are well preserved and are compared with the dwarf shoots and needles of some extant members of the Pinaceae. Of the five previously described species of Prepinus, P. delawarensis Penny is most similar to the new species.
ISSN:0006-8071
1940-1205
DOI:10.1086/336934