Author:
Baldis,B.;PŠ¶the de Baldis,E.D.
Year:
1988
Title:
The Ordovician-Silurian boundary in the Sierra de Villicum, Argentine Precordillera. (In: A Global Analysis of the Ordovician-Silurian Boundary. L.R.M.Cocks and R.B.Rickards, editors)
Reference:
Baldis,B. et al. (1988) The Ordovician-Silurian boundary in the Sierra de Villicum, Argentine Precordillera. (In: A Global Analysis of the Ordovician-Silurian Boundary. L.R.M.Cocks and R.B.Rickards, editors) British Museum (Natural History) Geology, Bulletin Vol. 43 P. 295- 297
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Genus Species Country(Region) From To
Ancyrochitina Ancyrochitina ancyrea Argentina(San Juan) Early Llandoverian Middle Llandoverian
Conochitina Conochitina chydaea Argentina(San Juan) Early Llandoverian Middle Llandoverian
Cyathochitina Cyathochitina campanulaeformis Argentina(San Juan) Early Llandoverian Middle Llandoverian
Desmochitina Desmochitina sp Argentina(San Juan) Early Llandoverian Middle Llandoverian
Domasia Domasia limaciformis Argentina(San Juan) Early Llandoverian Middle Llandoverian
Euconochitina Euconochitina filifera Argentina(San Juan) Early Llandoverian Middle Llandoverian
Eupoikilofusa Eupoikilofusa tenuistriata Argentina(San Juan) Early Llandoverian Middle Llandoverian
Marrocanium Marrocanium simplex Argentina(San Juan) Early Llandoverian Middle Llandoverian
Multiplicisphaeridium Multiplicisphaeridium alloiteauii Argentina(San Juan) Early Llandoverian Middle Llandoverian
Multiplicisphaeridium Multiplicisphaeridium remotum Argentina(San Juan) Early Llandoverian Middle Llandoverian
Rhabdochitina Rhabdochitina sp.A sp. nov. Argentina(San Juan) Early Llandoverian Middle Llandoverian
Spathachitina Spathachitina clarindoi Argentina(San Juan) Early Llandoverian Middle Llandoverian
Tunisphaeridium Tunisphaeridium tentaculaferum Argentina(San Juan) Early Llandoverian Middle Llandoverian
Veryhachium Veryhachium tetraedron Argentina(San Juan) Early Llandoverian Middle Llandoverian
Veryhachium Veryhachium trispinosum Argentina(San Juan) Early Llandoverian Middle Llandoverian