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Main Contents
The dendroid graptolites of China have been studied for more than two
decades. Many important species of the genera Dictyonema, Desmograptus,
Callograptus, Dendrograptus and Acanthograptus have been previously described
by Professors Y.C.Sun, T.H.Yin and Singwu C. Hsli. All these dendroids
are the Lower Ordovician (Tremadocian and Arenigian) forms obtained from
Hopei, Hupeh, Kiangsi and Yunnan Provinces. During recent years. Additional
specimens of dendroids ranging from Upper Cambrian to Lower Silurian have
been found from different localities in the provinces of Liaoning, Shansi,
Inner Mongolia, Sikang, Szechuan, Kueichou and Chekiang. It is this recently
acquired material forwarded to the writer for examination by many collectors
which forms the subject of the present account. The majority of the specimens
were collected from the Yehli formation (Tremadocian) of the Taitzeho
valley, Liaoning and from the Ichang formation (Tremadocian) of the Changyang
district, W.Hupedh.
Contents
1. Endroidea
(1) Dendrograptidae
(2) Acanthograptidae
(3) Inocaulidae
(4) Anisograptidae
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