in Jurassic and Cretaceous Stratigraphy

Earth Science Frontiers, Vol. 17, Special Issue, Aug. 2010 ISSN 1005-2321
Zhang’s specimen; 2) the elytra of the latter is ob-
viously shorter than that of Zhang’s; 3) the abdomen of
the latter is oval shape different from the tapering
shaped abdomen of Zhang’s specimen; 4) the size of
two known species of Globoides are relatively small as
2.2 to 4.5 mm long, but Zhang’s specimen is more than
152
10 mm long. Thus, Zhang’s specimen is probably not a
Globoides. Such kind of staphylinids represented by
several species (Fig.2 c, d) are very common in Dao-
hugou. Nevertheless, we suggest Prostaphylinus mirus
and our new specimen (Fig.2 a) are more similar to
Globoides.
Fig.1 The formerly reported Jurassic staphylinids from China
a, Prostaphylinus mirus Lin, 1976 from the Middle Jurassic Haifanggou Formation, western Liaoning Province (from Lin, 1976).
Its size according the original illustration is circa 3.5 mm long. b, “Prostaphylinus mirus” in Hong (1984) from the Middle Jurassic
Jiulongshan Formation, northern Hebei Province. Its size according the original illustration is circa 9 mm long. c, The line drawing of b
from Hong (1984). The original scale represents 1 mm. d, An unnamed species of Globoides from the Middle Jurassic Jiulongshan
Formation at Daohugou from Zhang (2002). The original scale represents 2 mm.
Only 22 staphylinid species hitherto described
from the Jurassic. Based on the large collection of
staphylinids from Daohugou, our knowledge on early
evolution and diversity of Staphylinidae should be
consumedly updated in future.
Fig. 2 Some new staphylinids from the Middle Jurassic Jiulongshan Formation at Daohugou, Inner Mongolia
a, A small specimen (NIGP 152181) resemble Prostaphylinus mirus (Lin, 1976) with expanding hind wing. b, A male specimen
(NIGP 152182) may compared with “Prostaphylinus mirus” in Hong (1984) with partly preserved hind wings. c, A female specimen
(NIGP 152183) resemble the unnamed species of Globoides of Zhang (2002). d, A small female specimen (NIGP 152184) resemble
that of Zhang (2002). Scale bar 1 mm in a, 2 mm in b-d.
Acknowledgements: We thank for the funds
provided for this research from the Chinese Academy
of Sciences (KZCX2-YW-QN104), the National
Natural Science Foundation of China (40632010), and
the Major Basic Research Project from MST of China
(2006-CB806400).
Key words: Jurassic; Staphylinidae; Diversity;
China; Daohugou
References:
Fraser N.C., Grimaldi D.A. Olsen, et al. A Triassic
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1996, 380: 615-619.