薄皺貝屬

薄皺貝屬（學名：）是瑞芬貝科薄皺貝亞科下已滅絕的一個屬，生存於中奧陶紀至早石炭紀，生活在海底。

特徵 
這類有鉸腕足動物的殼外型為半圓狀，有突出耳狀骨，鉸線為直線。腳狀瓣微微隆起而臂狀瓣多扁平，除了前部兩瓣朝同一角度彎曲外。表面的花紋十分纖細。薄皺貝屬生物通常將其腳狀瓣朝下躺在海底。朝上突出的前緣露在沉積物表面外，而臂狀瓣則幾乎完全被掩蓋住。

物種 
Leptaena (Leptaena) Dalman, 1828
Leptaena (Septomena) Roomusoks, 1989
Leptaena (Ygdrasilomena) Cocks, 2005
Leptaena acuticuspidata Amsden, 1958
Leptaena aequalis Amsden, 1974
Leptaena alliku Oraspold, 1956
Leptaena altera Rybnikova, 1966
Leptaena amelia Havlicek, 1967
Leptaena analogaeformis Biernat, 1966
Leptaena arberae Kelly, 1967
Leptaena argentina Thomas, 1905
Leptaena borghiana Mergl & Massa, 1992
Leptaena boyaca Caster, 1939
Leptaena contermina Cocks, 1968
Leptaena convexa Weller, 1914
Leptaena cooperi Easton et al., 1958
Leptaena croma Havlicek & Storch, 1990
Leptaena cryptoides Oraspold, 1956
Leptaena dejecta Baarli, 1995
Leptaena delicata Amsden, 1949
Leptaena depressa Sowerby, 1825
Leptaena electra Havlicek, 1967
Leptaena gibbosa James, 1874
Leptaena haverfordensis Bancroft, 1949
Leptaena holcrofti Bassett, 1974
Leptaena kentuckiana Pope, 1982
Leptaena lappa Havlicek & Storch, 1990
Leptaena lappina Havlicek & Storch, 1990
Leptaena lemniscata Havlicek, 1967
Leptaena limbifera Havlicek, 1967
Leptaena moniquensis Foerste, 1924
Leptaena nanaformis Zhang & al., 1983
Leptaena nassichuki Smith, 1980
Leptaena odeon Havlicek, 1967
Leptaena oklahomensis Amsden, 1951
Leptaena orhor Havlicek & Storch, 1990
Leptaena parvirugata Hoel, 2005
Leptaena parvissima Ivanovskii & Kulkov, 1974
Leptaena poulseni Kelly, 1967
Leptaena praequalis Rozman, 1977
Leptaena provellerosa Havlicek & Storch, 1990
Leptaena purpurea Cocks, 1968
Leptaena quadrata Bancroft, 1949
Leptaena quadrilatera Logan, 1863
Leptaena rara Alekseeva & Erlanger, 1983
Leptaena rhomboidalis Wahlenberg, 1821
Leptaena richmondensis Foerste, 1909
Leptaena rugata Lindström, 1861
Leptaena rugaurita Havlicek, 1967
Leptaena rugosoides Oraspold, 1956
Leptaena salopiensis Williams, 1963
Leptaena semiradiata Sowerby, 1842
Leptaena sperion Bassett, 1977
Leptaena valida Bancroft, 1949
Leptaena vellerosa Havlicek, 1967
Leptaena ventricosa Williams, 1963
Leptaena ventricosa Hall, 1857
Leptaena zeta Lamont, 1947
Leptaena ziegleri Cocks, 1968
Leptaenopoma trifidium Marek & Havlíček, 1967
Orhoria lappa Havlicek & Storch, 1990
Orhoria lappina Havlicek & Storch, 1990

參考文獻

外部連結 
 Leptaena in the 

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摩洛哥化石
澳洲化石
美國化石