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Leptosphinctes
Taxonomy
Leptosphinctes is a genus. It is not extant. Its type is Leptosphinctes leptus. It is the type genus of Leptosphinctinae.
It was assigned to Perisphinctidae by Besnosov and Mitta (1993); to Ammonoidea by Sepkoski (2002); and to Leptosphinctinae by Sandoval and Westermann (1986), Zatoń (2010), Galacz (2012).
It was assigned to Perisphinctidae by Besnosov and Mitta (1993); to Ammonoidea by Sepkoski (2002); and to Leptosphinctinae by Sandoval and Westermann (1986), Zatoń (2010), Galacz (2012).
Species lacking formal opinion data
Synonyms
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Synonymy list
Year | Name and author |
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1925 | Glyptosphinctes Buckman |
1925 | Spathia Schindewolf |
1956 | Kubanoceras Kakadze and Zesashvili |
1986 | Leptosphinctes Sandoval and Westermann p. 1265 |
1993 | Leptosphinctes Besnosov and Mitta p. 90 |
2002 | Leptosphinctes Sepkoski |
2010 | Leptosphinctes Zatoń p. 131 |
2012 | Leptosphinctes Galacz p. 288 |
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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.
G. †Leptosphinctes
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†Leptosphinctes (Cleistosphinctes) asinus Zatwornitzki 1914
†Leptosphinctes (Cleistosphinctes) balchanense Besnosov 1993
†Leptosphinctes (Cleistosphinctes) cleistus Buckman 1920
†Leptosphinctes (Cleistosphinctes) nikanorovae Besnosov 1993
†Leptosphinctes (Cleistosphinctes) perspicuus Parona 1896
†Leptosphinctes (Cleistosphinctes) umbilicatus Galacz 2012
Subg. †Leptosphinctes (Leptosphinctes) Buckman 1920
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†Leptosphinctes (Leptosphinctes) chaudonensis Pavia 1983
†Leptosphinctes (Leptosphinctes) coronarius Buckman 1921
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Invalid names: Kubanoceras kardonikensis Kakadze and Zesashvili 1956 [synonym]
†Leptosphinctes (Leptosphinctes) densicostatum Besnosov 1993
†Leptosphinctes (Leptosphinctes) festonensis Pavia 1973
†Leptosphinctes (Leptosphinctes) hodicus Nikanorova 1972
†Leptosphinctes (Leptosphinctes) leptus Buckman 1920
†Leptosphinctes (Leptosphinctes) pygmaeum Besnosov 1993
†Leptosphinctes schmiereri Bentz 1924
†Leptosphinctes tabernai Westermann 1983
†Leptosphinctes tenuiplicatus Brauns 1865
Invalid names: Glyptosphinctes Buckman 1925 [synonym], Kubanoceras Kakadze and Zesashvili 1956 [synonym], Spathia Schindewolf 1925 [synonym]
Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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shell height | 3 | 11.9 | 8.50 | 18.0 | 11.0 | 4.92 | |
shell diameter | 3 | 41.5 | 30.5 | 60.0 | 39.0 | 15.2 | |
shell inflation | 3 | 22.0 | 17.0 | 30.0 | 21.0 | 6.66 |
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Source: o = order, c = class | |||||
References: Kiessling 2004, Kiessling 2003 |
Age range: base of the Early/Lower Bajocian to the top of the Bathonian or 170.90000 to 165.30000 Ma
Collections (33 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Early/Lower Bajocian | Egypt | Perisphinctes tenuiplicatus (170873) | |
Bajocian | USA (Oregon) | L. evolutus (234036) | |
Bajocian | Mexico (Oaxaca) | L. sp. (8063) L. tabernai (8061 8066) | |
Bajocian | Canada (British Columbia) | L. meseres, L. cliffensis (37603) | |
Bajocian | Russian Federation (Karachaevo-Cherkessiya) | L. sp., L. hodicus (234961) | |
Bajocian | Iran | L. sp. (155331) | |
Bajocian | Saudi Arabia | L. sp. (48112) | |
Bajocian | Chile (Región de Tarapacá) | L. sp. (228998 228999) | |
Parkinsoni | Poland | L. sp. (187130) | |
Subfurcatum | Turkmenistan | L. balchanense (187362) L. coronarius, L. densicostatum, L. balchanense (187369) | |
Subfurcatum | Russian Federation | L. coronarius (187879) L. hodicus, L. pygmaeum (187899) L. leptus, L. coronarius, L. asinus, L. cleistus, Bajocisphinctes perspicuus (187896) L. leptus, L. coronarius, L. nikanorovae (187934) Praebigotites festonensis (187365 187900) | |
Late/Upper Bajocian | Hungary | L. chaudonensis, L. leptus (151903) L. sp. (151907 151908) L. sp., L. chaudonensis, L. leptus, L. festonensis, L. umbilicatus (151904) L. sp., L. leptus, L. festonensis, L. sp., L. perspicuus (151905) L. sp., L. sp. (151906) | |
Late/Upper Bajocian | Russian Federation (Karachaevo-Cherkessiya) | L. kardonikensis, L. stephanoceratoides, L. paucicosta, L. asinus (234980) L. sp., L. hodicus (235067) | |
Late/Upper Bajocian | Kenya | L. schmiereri (191124) | |
Late/Upper Bajocian | Egypt | L. tenuiplicatus (184588) Perisphinctes tenuiplicatus (170869) | |
Late/Upper Bajocian | Spain | Cleistosphinctes sp. (71712) | |
Bathonian | Saudi Arabia | L. sp. (48369) |