Grahn,Y.

Author:
Grahn,Y.

Year:
1988

Title:
Chitinozoan stratigraphy in the Ashgil and Llandovery. (In: A Global Analysis of the Ordovician-Silurian Boundary. L.R.M.Cocks and R.B.Rickards, editors)

Reference:

Grahn,Y. (1988) Chitinozoan stratigraphy in the Ashgil and Llandovery. (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. 317- 323

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Genus	Species	Country(Region)	From	To
Coronochitina	Coronochitina fragilis	Worldwide	Late Hirnantian	Early Rhuddanian
Coronochitina	Coronochitina fragilis	USSR(Estonian SSR)	Early Llandoverian
Coronochitina	Coronochitina maennili	Worldwide	Late Rhuddanian	Aeronian
Coronochitina	Coronochitina maennili	USSR(Estonian SSR)	Middle Llandoverian
Coronochitina	Coronochitina taugourdeaui	Worldwide	Late Rawtheyan	Hirnantian
Coronochitina	Coronochitina taugourdeaui	Scandinavia	Hirnantian
Coronochitina	Coronochitina taugourdeaui	Canada(Quebec)	Hirnantian
Coronochitina	Coronochitina taugourdeaui	USSR(Estonian SSR)	Late Ashgillian
Cyathochitina	Cyathochitina campanulaeformis	Worldwide	Late Ashgillian	Early Llandoverian
Cyathochitina	Cyathochitina kuckersiana	Worldwide	Late Ashgillian	Early Llandoverian
Desmochitina	Desmochitina densa	Worldwide	Late Telychian	Early Wenlockian
Desmochitina	Desmochitina densa	Sweden	Early Wenlockian
Desmochitina	Desmochitina minor	Worldwide	Ordovician
Eisenackitina	Eisenackitina dolioliformis	Worldwide	Aeronian	Telychian
Eisenackitina	Eisenackitina dolioliformis	USSR(Moscow)	Late Llandoverian
Hercochitina	Hercochitina sp	Canada(Quebec)	Ashgillian
Hercochitina	Hercochitina sp	USA(Mid-Continent)	Late Ashgillian