Author:
Grahn,Y.
Year:
2005
Title:
Devonian chitinozoan biozones of Western Gondwana.
Reference:
Grahn,Y. (2005) Devonian chitinozoan biozones of Western Gondwana. Acta Geologica Polonica Vol. 55 # 3 P. 211- 227
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Genus Species Country(Region) From To
Ramochitina Ramochitina whitei Brazil(Amazonas) Givetian
Sommerochitina Sommerochitina langei Late Frasnian
Sommerochitina Sommerochitina langei Late Frasnian Early Famennian
Sphaerochitina Sphaerochitina densibaculata Bolivia Late Lochkovian Pragian
Sphaerochitina Sphaerochitina densibaculata Argentina(Salta) Late Lochkovian
Sphaerochitina Sphaerochitina patula Argentina(Salta) Late Lochkovian
Spinachitina Spinachitina biconstricta Brazil(Paraiba) Late Eifelian Late Givetian
Urochitina Urochitina bastosi Late Frasnian Early Famennian
Urochitina Urochitina loboi Brazil(Amazonas) Early Lochkovian Middle Lochkovian
Urochitina Urochitina loboi Bolivia Late Lochkovian Pragian
Urochitina Urochitina loboi Brazil(Amazonas) Early Lochkovian Middle Lochkovian
Urochitina Urochitina loboi Bolivia Late Lochkovian Pragian
Urochitina Urochitina loboi Argentina(Salta) Late Lochkovian