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Plataninium californicum
Taxonomy
Plataninium californicum was named by Page (1968). It is considered to be a form taxon. Its type specimen is Stanford University Paleontology Type Collection 9939 and is a 3D body fossil. Its type locality is Black Gulch, which is in a Maastrichtian marine horizon in the Panoche Formation of California.
Synonymy list
| Year | Name and author |
|---|---|
| 1968 | Plataninium californicum Page p. 169 figs. 4-6 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Plataninium californicum Page 1968
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| V. M. Page 1968 | Growth rings lacking; diffuse porous, pores solitary; radial diameter avg 130,u (92- 160,u); vessel elements avg 968 I in length (812-1100 ,), intervascular pits opposite with some scalariform pits in smaller vessels and vessel element ends; perforation plates scalariform with less than 30 bars (simple plates may also be present); pits to axial parenchyma large, horizontally elongated, almost scalariform; tyloses abundant; axial parenchyma metatracheal diffuse
and in uniseriate tangential lines, some vasicentric; uniseriate rays scarce, composed of procumbent and square cells; multiseriate rays essentially homogeneous, but some with one or two uniseriate rows of square cells at margins, up to 15-20 cells wide and up to 2-7 mm high. Ground mass of tissue composed of libriform fibers. |