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Kachaikenia compuesta
Taxonomy
Kachaikenia compuesta was named by Cunéo and Gandolfo (2005). It is an impression. Its type locality is Arroyo Caballo Muerto-Creek, which is in an Aptian/Albian delta plain sandstone/shale in the Kachaike Formation of Argentina. It is the type species of Kachaikenia.
Synonymy list
Year | Name and author |
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2005 | Kachaikenia compuesta Cunéo and Gandolfo |
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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.
†Kachaikenia compuesta Cunéo and Gandolfo 2005
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Diagnosis
Reference | Diagnosis | |
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R. Cunéo and M. A. Gandolfo 2005 | Leaves pinnately compound, 6 cm long and 4 cm wide. Leaflets in alternate pairs (4 or 5), microphyllous, ovate in shape when fully developed, with asymmetrical bases; up to 5 cm long and 0.9 cm wide. Base acute, concave–convex, apex acute to obtuse. Margin entire and unlobed in basal leaflets to pinnately lobed in apical leaflets. First vein category pinnate. Second vein category craspedodromous; veins emerging at an acute angle, with straight course, reaching or not the marginal vein. Secondary veins spaced irregularly, with increasing space towards the base. Intersecondary veins weak. Third vein category (highest) random reticulate, exmedially ramified; angle to primaries acute to obtuse (inconsistent). Areoles well-developed, 3 to 5 or more sided. Ultimate marginal venation clearly fimbrial. |
Measurements
No measurements are available
No ecological data are available