Cretaceous rocks of Hokkaido abound with fossil ammonites, one of the most beautiful and popular fossil in the world.
Ammonite is an extinct ancient cephalopoda, a kind of Octopus and squid, living in marine about hundreds of millions years ago.
With collaboration of the over 70 amateur fossil collectors in Hokkaido, this book illustrated more than seven hundred specimens of Cretaceous ammonites and other fossils from Hokkaido, Japan with beautiful color photographs and illustrations, including many beautiful nature photos.
The systematic classification of the ammonite follows "Treaties on invertebrate palaeontology,Part L, Mollusca, Revised, 1996 " .
As most of the Late Cretaceous ammonites species known from Hokkaido were illustrated, this is the best guide book for not only the beginners but the researchers of fossils to identify the specimens.Compared to the figures ever published, some of them were almost completeand best preservation.
The size of the specimens are original size as long as possible although some of the huge ammonites were reduced.
There areoriginal photos of the Holotype such as Phyllopachyceras ezoense, Anagaudryceras tetragonum, Tetragonites terminus, Gabbioceras mikasaense, Puzosia nagaoi,Tongoboryceras keramasatoshii, Prionocyclus aberans and others.
Some of them had been represented in beautiful color photo for the first time.
There are also undescribed new species waiting for to be described.
Many amateur ammonite collectors had spent long time for the field work and preparation of illustrated ammonites.
This book will present you most precious collection of Hokkaido ammonites ever seen before.
You will find wonderful ancient marine life of the Cretaceous Time through this book.
Classification
Order
Suborder
Superfamily
Family
Subfamily
Genus
Subgenus
Order AMMONOIDEA Zittel,1884
Their are 4 Suborders within Order AMMONOIDEA on Cretaceous Period.
PHYLLOCERATINA
LYTOCERATINA
AMMONITINA
ANCYLOCERATINA
Suborder PHYLLOCERATINA Arkell,1950
1 Superfamily 1 Family 1 Subfamily
Suborder LYTOCERATINA Hyatt,1889
2 Superfamilies 3 Families 3 Subfamilies
Suborder AMMONITINA Hyatt,1889
3 Superfamilies 14 Families 23 Subfamilies
Suborder ANCYLOCERATINA Wiedmann,1966
5 Superfamilies 12 Families 9 Subfamilies
Contents
Beautiful scenery of the Cretaceous field
Geology of Hokkaido including geological map
Mode of occurrenc
Color plates of ammonites (more than 160 genus and 746 specimens)
Hyphantoceras venustum (YABE)Santonian Obira Miyashita S. Coll.
Nipponites mirabilisYABE Turonian Obira Yamanaka S. Coll.
Mantelliceras japonicum MATSUMOTO, MURAMOTO et TAKAHASHI Cenomanian Ikusyunbetsu Fukuoka K. Coll.
Gaudryceras (Gaudryceras) sp. Campanian Hidaka Fukuoka K. Coll.
