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Similodontidae

Bivalvia - Afghanodesmatida - Similodontidae

Synonymy list
YearName and author
2011Similodontidae Carter et al. p. 32q
2011Similodontidae Carter and Pojeta Jr. p. 21

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
RankNameAuthor
—Eubivalvia
subclassProtobranchia(Pelseneer 1889)
superorderNuculaniformiiCarter et al. 2000
orderAfghanodesmatida
superfamilyTironuculoideaBabin 1982
familySimilodontidae
familySimilodontidae

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.

Fm. †Similodontidae Carter and Pojeta Jr. 2011
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G. †Australonucula Sánchez 1989
G. †Palaeoconcha Miller 1889
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†Palaeoconcha faberi Miller 1889
†Palaeoconcha ohioensis Bassler 1915
†Palaeoconcha samenoha Kobayashi 1934
†Palaeoconcha subsymmetrica Kobayashi 1934
G. †Similodonta Soot-Ryen 1964
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†Similodonta similis Ulrich 1892
†Similodonta spjeldnaesi Soot-Ryen and Soot-Ryen 1960
G. †Trigonoconcha Sanchez 1999
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†Trigonoconcha acuta Sanchez 1999
G. †Villicumia Sanchez 1999
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†Villicumia canteraensis Sanchez 1999
Diagnosis
ReferenceDiagnosis
J. G. Carter et al. 2011Family diagnosis: members of superfamily Tironuculoidea with low hinge angle (65–100°) and only slightly, if at all, anteroventrally expanded shell. Increased anterior shell gape achieved by orienting ligament axis more nearly perpendicular to the anteroventral shell margins. Anterior hinge teeth convexodont to orthomorphodont and inclined. Posterior hinge teeth convexodont in most genera, to orthomorphodont and inclined. Anterior and posterior tooth rows generally form continuous series below the beaks, but posterior tooth row may overlap anterior tooth row below beaks. Anterior and posterior tooth rows typically nearly equal in length, but the posterior tooth row may be slightly shorter.
Measurements
No measurements are available
Composition: aragonitec
Locomotion: facultatively mobilec
Life habit: infaunalc
Diet: suspension feederc
Vision: blindc
Created: 2004-02-28 11:33:36
Modified: 2010-02-12 03:59:35
Source: c = class
Reference: Aberhan et al. 2004

Age range: base of the Dapingian to the top of the Eifelian or 471.30000 to 387.95000 Ma

Collections (69 total)


Time interval Ma Country or state Original ID and collection number
Dapingian471.3 - 469.4China Similodonta sp. (232225)
Middle Ordovician471.3 - 458.2USA (Kentucky) Palaeoconcha sp. (10745)
Middle Ordovician - Late/Upper Ordovician471.3 - 443.1USA (Wisconsin, Illinois, Iowa) Similodonta sp. (23553)
Oretanian468.0 - 461.0Spain (Toledo) Similodonta sp. (20898)
Llanvirn468.0 - 458.2South Korea (Kangwon-do) Ctenodonta samenoha (56171)
Early/Lower Llandeilo461.1 - 458.2United Kingdom (Wales) Similodonta sp. (3366)
Early/Lower Llandeilo461.1 - 458.2North Korea Ctenodonta subsymmetrica (56166)
Costonian458.2 - 457.2Argentina Palaeoconcha sp. (8874)
Soudleyan - Longvillian458.2 - 455.0United Kingdom (Northern Ireland) Similodonta sp. (13840)
Soudleyan - Marshbrookian458.2 - 454.0United Kingdom (England) Similodonta sp. (3651 3652 3653 3654)
Caradoc458.2 - 449.5USA (Wisconsin) Similodonta sp. (55651)
Caradoc458.2 - 449.5Argentina (San Juan) Villicumia canteraensis, Trigonoconcha acuta (13513)
Caradoc458.2 - 449.5United Kingdom (Wales) Similodonta sp. (348)
Caradoc458.2 - 449.5Canada (Quebec) Similodonta astarteformis (77220 77221)
Turinian457.3 - 453.8USA (Kentucky) Similodonta hermitagensis (100176)
Kirkfieldian457.3 - 449.6USA (Illinois, Iowa) Similodonta sp. (23623 23644)
Rocklandian - Kirkfieldian457.3 - 449.6USA (Minnesota) Similodonta sp. (23558)
Rocklandian - Kirkfieldian457.3 - 449.6USA (Illinois, Iowa) Similodonta sp. (23622)
Rocklandian - Shermanian457.3 - 449.6USA (Minnesota) Similodonta sp. (23550)
Shermanian457.3 - 449.6USA (Minnesota) Similodonta sp. (23579 23584)
Shermanian457.3 - 449.6USA (Illinois, Iowa) Similodonta sp. (23651 23653 23656 23659 23664 23667 23668 23670)
Shermanian457.3 - 449.6USA (Minnesota, Illinois, Iowa) Similodonta sp. (23552)
Longvillian - Marshbrookian457.2 - 454.0China (ShanXi) Similodonta sp. (7918)
Actonian454.0 - 453.0United Kingdom (Wales) Similodonta sp. (76475)
Actonian - Onnian454.0 - 449.5United Kingdom (England) Similodonta sp. (3656 3657 3658 3659 3662)
Chatfieldian453.8 - 451.0USA (Kentucky) Palaeoconcha obliqua (34559 34561) Palaeoconcha obliqua, Similodonta sp. (34547) Palaeoconcha sp. (34563) Similodonta hermitagensis (34546) Similodonta sp. (34548)
Oandu - Rakvere452.8 - 450.5Norway (Ringerike) Similodonta spjeldnaesi (164705)
Edenian451.0 - 450.2USA (Ohio) Similodonta sp. (349)
Edenian - Maysvillian451.0 - 449.6USA (Illinois, Iowa) Similodonta sp. (23682)
Edenian - Maysvillian451.0 - 449.6USA (Minnesota) Similodonta sp. (23603)
Edenian - Maysvillian451.0 - 449.6USA (Minnesota, Iowa, Wisconsin, Illinois) Similodonta sp. (23554)
Maysvillian450.2 - 449.6USA (Illinois, Iowa) Similodonta sp. (23684)
Maysvillian450.2 - 449.6USA (Minnesota) Similodonta sp. (23607)
Maysvillian450.2 - 449.6USA (Iowa) Similodonta obliqua (13262)
Richmondian449.6 - 445.5USA (Iowa) Palaeoconcha sp. (356)
Ashgill449.5 - 443.1China (HaiNanDao) Similodonta sp. (4684)
Ashgill449.5 - 443.1USA (Indiana) Palaeoconcha faberi (64230)
Rawtheyan - Hirnantian448.8 - 443.1Norway Similodonta spjeldnaesi (162225)
Hirnantian445.2 - 443.1Norway (Oslo-Asker Dist.) Similodonta sp. (438)
Porkuni445.2 - 443.1Estonia (North Estonia) Similodonta wahli (23294)
Llandovery443.1 - 432.9USA (Ohio) Palaeoconcha sp. (448)
Wenlock - Ludlow432.9 - 422.7Argentina Australonucula mesocarinata (25060 25061 25062)
Homerian430.6 - 426.7Sweden (Gotland) Similodonta djupvikensis (13644)
Ludlow426.7 - 422.7United Kingdom (England) Similodonta sp. (479)
Devonian - Eifelian419.62 - 387.95Czechia Palaeoconcha indet. (10470)