Authors Year Title
Korn 1997 The Palaeozoic ammonoids of the South Portuguese Zone.
Memórias do Instituto geológico e Mineiro 33: 1-131, 69 text-figs., 16 pls., Lisboa.
Oliveira, Horn & Paproth 1979 Preliminary note on the stratigraphy of the Baixo Alentejo Flysch Group, Carboniferous of Southern Portugal and on the palaeogeographic development, compared to corresponding units in Northwest Germ
Comunicacoes dos Servicos de Portugal, 65: 151-168, fig.1-5, tab.1-2, pl.1-4; Lisboa.
Pitinova 1974 Stratigrafiya i ammonoidei Namyura Tsentral'nykh Kyzylkumov i Yuzhnoi Fergany.
1-66, 8 figs.,1 tab., 12 pls., Tashkent (Izdatel'stvo FAN Uzbekskoy SSR).
Ruzhencev & Bogoslovskaya 1978 Namyurskiy etap v evolyutsii ammonodey. Pozdnenamyurskiye ammonoidei.
Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 167: 1-336, fig.1-108, pl.1-44; Moskva.
Zakharov 1969 Novye dannye k stratigrafii Namiura po ammonoideiam khr. Karachatyr.
Doklady Akademii Nauk SSSR 1969, 185 (1): 149-151, 1 text-fig., Moskva.