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Similodonta

Bivalvia - Nuculida - Praenuculidae

Taxonomy
Similodonta was named by Soot-Ryen (1964). Its type is Tellinomya similis.

It was assigned to Nuculoida by Sepkoski (2002); and to Praenuculidae by Cox et al. (1969), Toni (1975), Vokes (1980) and Fang (2006).

Species
S. similis, S. spjeldnaesi
Species lacking formal opinion data
S. hermitagensis, S. wahli

Synonymy list
YearName and author
1964Similodonta Soot-Ryen
1969Similodonta Cox et al. p. N230
1975Similodonta Toni
1980Similodonta Vokes p. 220
2002Similodonta Sepkoski
2006Similodonta Fang

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
RankNameAuthor
—Eubivalvia
subclassProtobranchia(Pelseneer 1889)
superorderNuculiformiiDall 1889
orderNuculida(Dall 1889)
superfamilyNuculoidea(Gray 1824)
familyPraenuculidaeMcAlester 1968
genusSimilodontaSoot-Ryen 1964

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. †Similodonta Soot-Ryen 1964
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†Similodonta similis Ulrich 1892
†Similodonta spjeldnaesi Soot-Ryen and Soot-Ryen 1960
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
valve height215.315.015.615.30.424

Composition: aragonitec
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Thickness: thing
Folds: noneg
Ribbing: noneg
Spines: noneg
Internal reinforcement: noneg
Locomotion: facultatively mobilef
Attached: yesf
Life habit: shallow infaunalf
Diet: deposit feederf
Vision: blindc
Comments: BODY SIZE: Data from Cox et al. (1969).g
Created: 2009-06-05 12:45:22
Modified: 2009-06-05 14:45:22
Source: g = genus, f = family, c = class
References: Hendy 2009, Aberhan et al. 2004, Meyer et al. 2009

Age range: base of the Oretanian to the top of the Ludlow or 468.00000 to 423.00000 Ma

Collections (54 total)


Time interval Ma Country or state Original ID and collection number
Dapingian470.0 - 467.3China S. sp. (232225)
Middle Ordovician - Late/Upper Ordovician470.0 - 443.8USA (Wisconsin, Illinois, Iowa) S. sp. (23553)
Oretanian468.0 - 459.0Spain (Toledo) S. sp. (20898)
Early/Lower Llandeilo466.0 - 460.9United Kingdom (Wales) S. sp. (3366)
Soudleyan - Longvillian458.4 - 455.0United Kingdom (Northern Ireland) S. sp. (13840)
Soudleyan - Marshbrookian458.4 - 454.0United Kingdom (England) S. sp. (3651 3652 3653 3654)
Caradoc458.4 - 449.5Canada (Quebec) S. astarteformis (77220 77221)
Caradoc458.4 - 449.5USA (Wisconsin) S. sp. (55651)
Caradoc458.4 - 449.5United Kingdom (Wales) S. sp. (348)
Turinian457.3 - 453.8USA (Kentucky) S. hermitagensis (100176)
Kirkfieldian457.3 - 449.6USA (Illinois, Iowa) S. sp. (23623 23644)
Rocklandian - Kirkfieldian457.3 - 449.6USA (Illinois, Iowa) S. sp. (23622)
Rocklandian - Kirkfieldian457.3 - 449.6USA (Minnesota) S. sp. (23558)
Rocklandian - Shermanian457.3 - 449.6USA (Minnesota) S. sp. (23550)
Shermanian457.3 - 449.6USA (Illinois, Iowa) S. sp. (23651 23653 23656 23659 23664 23667 23668 23670)
Shermanian457.3 - 449.6USA (Minnesota) S. sp. (23579 23584)
Shermanian457.3 - 449.6USA (Minnesota, Illinois, Iowa) S. sp. (23552)
Longvillian - Marshbrookian457.2 - 454.0China (ShanXi) S. sp. (7918)
Actonian454.0 - 453.0United Kingdom (Wales) S. sp. (76475)
Actonian - Onnian454.0 - 449.5United Kingdom (England) S. sp. (3656 3657 3658 3659 3662)
Chatfieldian453.8 - 451.0USA (Kentucky) S. hermitagensis (34546) S. sp. (34547 34548)
Oandu - Rakvere453.0 - 450.5Norway (Ringerike) S. spjeldnaesi (164705)
Edenian451.0 - 450.2USA (Ohio) S. sp. (349)
Edenian - Maysvillian451.0 - 449.6USA (Illinois, Iowa) S. sp. (23682)
Edenian - Maysvillian451.0 - 449.6USA (Minnesota) S. sp. (23603)
Edenian - Maysvillian451.0 - 449.6USA (Minnesota, Iowa, Wisconsin, Illinois) S. sp. (23554)
Maysvillian450.2 - 449.6USA (Iowa) S. obliqua (13262)
Maysvillian450.2 - 449.6USA (Illinois, Iowa) S. sp. (23684)
Maysvillian450.2 - 449.6USA (Minnesota) S. sp. (23607)
Ashgill449.5 - 443.7China (HaiNanDao) S. sp. (4684)
Rawtheyan - Hirnantian448.8 - 443.4Norway S. spjeldnaesi (162225)
Porkuni445.6 - 443.7Estonia (North Estonia) S. wahli (23294)
Hirnantian445.2 - 443.4Norway (Oslo-Asker Dist.) S. sp. (438)
Homerian430.5 - 427.4Sweden (Gotland) S. djupvikensis (13644)
Ludlow427.4 - 423.0United Kingdom (England) S. sp. (479)