托莫特壳类 分類 參考資料 导航菜单Scleritome construction, biofacies, biostratigraphy and systematics of the tommotiid Eccentrotheca helenia sp. nov. from the Early Cambrian of South AustraliaISSN 1475-4983doi:10.1111/j.1475-4983.2010.01031.x托莫特壳类(Tommotiid)在我国(中国)的发现Neoproterozoic- Cambrian Biological Revolutions原始内容

寒武紀動物


學名並系群觸腕蝸牛腹足海床弗米奇壳寒武紀早寒武世托莫特阶古生代中生代磷酸鈣碳酸鈣





 

如何讀生物分類框
托莫特壳类
Tommotiid
化石時期： 紐芬蘭世–第二世[1]

PreЄ

Є

O

S

D

C

P

T

J

K

Pg

N










科學分類









界：

动物界 Animalia


亞界：

后生动物亚界 Metazoa


（未分级）

真后生动物 Eumetazoa
两侧对称动物 Bilateria
原口动物 Protostomia
冠轮动物 Lophotrochozoa


（未分级）

触手冠动物 Lophophorata

托莫特壳类（學名：Tommotiid）是一種已滅絕的小型有殼化石並系群，具體分類未明。牠有類似章魚的觸腕，但卻用類似蝸牛的腹足來行走於海床。牠和弗米奇壳（Fomitchella）等在寒武紀早寒武世托莫特阶出現[2]，在古生代和中生代期間支配並分化出水生型態。


與一般小型有殼動物不同的是，托莫特殼類化石是被磷酸鈣，而不是碳酸鈣礦物化的[3]。



分類


托莫特壳类可分為兩屬九種，分別為[2][1]：

















分類單元
關係

Kulparina
父系主幹分支

Paterimitra
父系主幹分支

隐孔贝类（Askepasma）
Paterinid stem- (or crown-?) group

Tannuolina

舌形貝綱的主幹分支

Micrina

Mickwitzia

Camenella

腕足动物门（Brachiopods） + 帚虫动物门（Phoronids）的主幹分支

Dailyatia

Lapworthella

Eccentrotheca
Stem-group to Phoronids? (or perhaps Brachiopods?)


參考資料




  1. ^ 1.01.1 CHRISTIAN B. SKOVSTED, GLENN A. BROCK, TIMOTHY P. TOPPER, JOHN R. PATERSON, LARS E. HOLMER. Scleritome construction, biofacies, biostratigraphy and systematics of the tommotiid Eccentrotheca helenia sp. nov. from the Early Cambrian of South Australia. Palaeontology. 2011-03-01, 54 (2): 253–286 [2018-04-02]. ISSN 1475-4983. doi:10.1111/j.1475-4983.2010.01031.x （英语）. 


  2. ^ 2.02.1 袁克兴; 章森桂. 托莫特壳类(Tommotiid)在我国(中国)的发现 (PDF). 古生物学报（ACTA PALAEONTOLOGICA SINICA）. 1983年1月, 第22卷 (第1期) （中文（简体）‎）. 


  3. ^ Bengtson, S. Lipps, J.H., and Waggoner, B.M., 编. Neoproterozoic- Cambrian Biological Revolutions (PDF). Paleontological Society Papers. 2004, 10: 67–78 [2008-07-18]. （原始内容 (PDF)存档于2017-02-11）.  |contribution=被忽略 (帮助)







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