具彩色斑纹颅形贝在广西桂林下石炭统黄金组中的发现:兼论颅形贝属的地质地理分布* |
陈智敏 , 孙元林 |
Discovery of color patterned Cranaena(Brachiopoda)from the Lower Carboniferous Huangjin Formation in Guilin of Guangxi with a brief comment on its geological and geographic distribution |
|
Chen Zhimin
, Sun Yuanlin |
| 广西桂林黄金组中的桂林颅形贝(新种) 1a~1d—PKUM02-0631的腹视、背视、左侧视和右侧视,示表面的放射状彩色条带;2a~2e—PKUM02-0632的腹视、背视、侧视、前视和后视;3,4—PKUM02-0633和PKUM02-00634的腹视,示表面的放射状彩色条带;5a~5c—PKUM02-0635的腹视、背视和前视,示壳面的放射状彩色条带;6—硅化的壳体后部内视(上为腹壳),示齿板和主基构造,PKUM02-0636;7a~7e—PKUM02-0637的腹视、背视、后视、前视和侧视;8a~8e—标本PKUM02-0638(正型)的腹视、背视、后视、前视和侧视;9a~9c—PKUM02-0639的腹视、背视和侧视;10a~10e—PKUM02-0640的腹视、背视、侧视、前视和后视;11a~11e—PKUM02-0641的腹视、背视、侧视、前视和后视(幼年个体);12a~12e—PKUM02-0642的腹视、背视、侧视、前视和后视(幼年个体);13—PKUM02-0643的背壳内视,箭头指示腕环; 14—PKUM02-0644腹壳壳面的疹孔 |
 |