Untermiozänes Kieselholz aus der Provinz Cuenca, Fundort Valquemado:
C. Privé-Gill et al. 1993: Early miocene silicified wood and associated fauna from the Cuenca Province, Spain—Genistoxylon dorycnioides n. sp. (Leguminosae-Papilionaceae). Palynology Volume 78, Issues 3–4, September 1993, Pages 395-402
https://www.sciencedirect.com/science/article/abs/pii/0034666793900734