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Taxonomy
Leptonacea was named by Gray (1847). It is extant.
It was corrected as Leptonoidea by Marquet (2005), Nevesskaja (2009).
It was assigned to Teleodesmacea by Glenn (1904); to Lucinina by Newell (1965); to Veneroida by Dockery (1982), Maxwell (1992), Marquet (2005); and to Lucinoida by Nevesskaja (2009).
It was corrected as Leptonoidea by Marquet (2005), Nevesskaja (2009).
It was assigned to Teleodesmacea by Glenn (1904); to Lucinina by Newell (1965); to Veneroida by Dockery (1982), Maxwell (1992), Marquet (2005); and to Lucinoida by Nevesskaja (2009).
Subtaxa
Synonymy list
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Superfm. Leptonoidea Gray 1847
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Fm. Erycinidae Gray 1847
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G. Amerycina
G. Arthritica Finlay 1927
G. †Erycina Lamarck 1805
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Subg. Erycina (Erycina) Lamarck 1805
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†Erycina (Erycina) depressa Nyst 1836
†Erycina (Erycina) longidentata Deshayes 1858
Subg. †Erycina (Hemilepton) Cossmann 1911
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†Erycina (Hemilepton) aotea Maxwell 1992
†Hemilepton nitidum Turton 1822
Subg. Erycina (Pseudopythina)
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†Erycina (Pseudopythina) americana Dall 1900
Erycina (Pseudopythina) compressa Dall 1899
†Erycina aequorea Conrad 1833
†Erycina calvertensis Glenn 1904
†Erycina catalaunensis Cossmann 1883
†Erycina marylandica Glenn 1904
†Erycina pliculata Dall 1900
†Erycina pruna Glenn 1904
†Erycina rectilinearis Conrad 1833
†Erycina regifica Olsson 1914
†Erycina rickardia Glenn 1904
†Erycina speciosa Glenn 1904
†Erycina striatissima Cerulli-Irelli 1908
†Erycina whitfieldi Meyer 1886
G. †Goodalliopsis
G. †Lucinaxinus
G. Myllitella Finlay 1926
G. †Parvikellia Laseron 1956
G. Pythina
Fm. Kelliidae Forbes and Hanley 1849
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G. Bornia
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†Bornia confusa Della Bella and Tabanelli 2007
†Bornia cooki Willett 1937
†Bornia depressa Glenn 1904
†Bornia isosceles Harris 1919
†Bornia mactroides Conrad 1834
†Bornia marylandica Glenn 1904
†Bornia perdita Harris 1919
†Bornia plectopygia Dall 1900
†Bornia scintillata Dall 1900
†Bornia tallahalaensis Dockery 1982
†Bornia triangula Glenn 1904
†Bornia virginiana Olsson 1914
G. †Cicatella Laseron 1956
G. Cicatellia
G. †Lasaeokellya
G. †Micropolia Laseron 1953
G. Nesobornia
G. †Pseudolepton
Fm. Montacutidae Clark 1855
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G. Altenaeum Spaink 1972
G. †Barrimysia Iredale 1929
G. Curvemysella Habe 1959
G. Decipula
G. †Devonia
G. †Fastimysia Iredale 1929
G. †Fronsella Laseron 1956
G. †Lasaeoneaera
G. †Laubriereia
G. Mancikellia
G. †Merignacia
G. †Mioerycina Kautsky 1939
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G. Montacuta Turton 1822
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Montacuta bowmani Holmes 1860
†Montacuta claiborniana Dall 1900
†Montacuta dalli Cossman 1893
†Montacuta donacina Wood 1840
Montacuta floridana Dall 1899
†Montacuta mariana Dall 1900
†Montacuta schafferi Kautsky 1940
†Montacuta sericea Tate 1887
Montacuta substriata Montague 1808
†Montacuta truncata Wood 1840
G. †Montacutona Yamamoto 1959
G. Mysella Angas 1877
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Subg. Mysella (Mysella) Angas 1877
Subg. Mysella (Rochefortia) Velain 1877
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Rochefortia aleutica Dall 1899
Rochefortia dawsoni Jeffreys 1864
†Rochefortia reyana Willett 1937
†Mysella beaufortensis Ward and Blackwelder 1987
†Mysella trigonoelliptica Stilwell and Zinsmeister 1992
G. †Pileatona Laseron 1956
G. Pythinella Dall 1899
G. Rochefortula
G. †Thecodonta Adams
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G. †Virmysella Iredale 1930
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Age range
Maximum range based only on fossils: base of the Early/Lower Cenomanian to the top of the Holocene or 100.50000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 93.9 Ma
Minimum age of oldest fossil (stem group age): 93.9 Ma
Collections (203 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Cenomanian | USA (California) | Rhectomyax undulatus (167599) | |
| Piripauan | New Zealand | Erycina sp. (78369 83521) | |
| Campanian | USA (California) | Rhectomyax undulatus (35060) | |
| Early/Lower Campanian | USA (California) | Rhectomyax undulatus (35061) | |
| Maastrichtian | Denmark | Erycina sp. (35039) | |
| Danian | Belgium | Erycina briarti (22931) | |
| Danian | USA (Texas) | Mysella sp. (205466) | |
| Early/Lower Paleocene | USA (Texas) | Bornia sp. (84474) | |
| Paleocene | Poland | Erycina sp. (3112) | |
| Middle Paleocene - Late/Upper Paleocene | USA (Texas) | Bornia sp. (84651) | |
| Selandian - Thanetian | USA (Alabama) | Bornia prima (80367) | |
| Thanetian | USA (Alabama) | Montacuta bicuspidata, Mysella minuta (92352) | |
| Thanetian | USA (Texas) | Bornia solomonis (205530) Bornia sp. (205455) | |
| Thanetian | Australia (Victoria) | Bornia flabellaris (6267) | |
| Thanetian - Ypresian | Australia (Victoria) | Erycinidae indet. (85124) | |
| Ypresian | USA (Texas) | Bornia prima (91845) | |
| Ypresian | Belgium | Erycina longidentata (77608) | |
| Ypresian | United Kingdom (England) | Erycina sp. (8104) Semeloidea curryi (3267) | |
| Ypresian | USA (Alabama) | Bornia prima (92269 92375) Montacuta herberti (35080 98291) | |
| Ypresian - Lutetian | Antarctica (Seymour Island) | Mysella trigonoelliptica (63551) | |