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Plaesiomys

Rhynchonellata - Orthida - Plaesiomyidae

Synonymy list
YearName and author
1892Plaesiomys Hall and Clarke
1932Dinorthis (Plaesiomys) Schuchert and Cooper
1964Plaesiomys Wright
1970Plaesiomys Macomber
1977Plaesiomys Mitchell
1988Plaesiomys Howe p. 212
2000Plaesiomys Popov et al.
2000Plaesiomys Williams et al. p. 747
2002Plaesiomys Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
—PanbrachiopodaCarlson and Cohen 2020
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderOrthidaSchuchert and Cooper 1932
suborderOrthidinaSchuchert and Cooper 1932
superfamilyOrthoideaWoodward 1852
familyPlaesiomyidaeSchuchert 1913
subfamilyPlaesiomyinaeSchuchert 1913
genusPlaesiomysHall and Clarke 1892

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. †Plaesiomys Hall and Clarke 1892
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Subg. †Plaesiomys (Plaesiomys) Hall and Clarke 1892
Subg. †Plaesiomys (Valcourea) Raymond 1911
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†Plaesiomys carletona Twenhofel 1928
†Plaesiomys fidelis Popov et al. 2000
†Plaesiomys idahoensis Ross 1959
†Plaesiomys iphigenia Billings 1865
†Plaesiomys multiplicata Bancroft 1945
†Plaesiomys porcata M'Coy 1846
†Plaesiomys porcata lata Mitchell 1977
†Plaesiomys proavita Winchell and Schuchert 1892
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Invalid names: Plaesiomys planus Wang 1949 [synonym]
†Plaesiomys rockymontana Wilson 1926
†Plaesiomys saxbiana Oraspold 1959
Invalid names: Pionorthis Schuchert and Cooper 1932 [replaced]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitep
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Environment: marineuc
Locomotion: stationaryf
Attached: yesf
Life habit: epifaunalf
Diet: suspension feederf
Vision: blindc
Created: 2009-06-02 13:51:18
Modified: 2009-06-02 15:51:18
Source: g = genus, f = family, c = class, p = phylum, uc = unranked clade
References: Aberhan et al. 2004, Hendy 2009, Hendy et al. 2009, Nesnidal et al. 2013

Age range: base of the Early/Lower Llanvirn to the top of the Hirnantian or 468.00000 to 443.10000 Ma

Collections (272 total)


Time interval Ma Country or state Original ID and collection number
Chazyan471.3 - 457.3USA (New York) P. strophomenoides (172198 172206)
Early/Lower Llanvirn468.0 - 461.1China (Yunnan) P. sp. (5423)
Llandeilo461.1 - 458.2China (GanSu) P. sp. (8562)
Soudleyan458.2 - 457.2Ireland (Leinster) P. multiplicata (55671) P. sp. (55684)
Soudleyan - Marshbrookian458.2 - 454.0Ireland (Co. Meath) P. multiplicata (50346)
Caradoc458.2 - 449.5Canada (Ontario) P. sp. (64477 64478 64479 64480 64482)
Caradoc458.2 - 449.5Myanmar P. taungtalensis (186299)
Caradoc458.2 - 449.5Kazakhstan P. fidelis (116266 116272 116277 116278 116279 116280 116281 116284 116304 116305 116306 116308 116311)
Soudleyan - Onnian458.2 - 449.5China (GanSu) P. sp. (8545)
Late/Upper Ordovician458.2 - 443.1USA (Indiana) P. subquadrata (75166 77636 77639 77720 77965 78156 78820) P. subquatra (75165)
Late/Upper Ordovician458.2 - 443.1USA (California) P. sp. (226247)
Late/Upper Ordovician458.2 - 443.1USA (Kentucky) P. subquatra (75463)
Late/Upper Ordovician458.2 - 443.1USA (Ohio) P. subquadrata (75108 75157 75160 77507 77547 78222 78507 78508 78603 78606 78635 78638 78726 78805 78821 78824 78825 78827 78828 78883 78887 78892)
Turinian457.3 - 453.8Canada (British Columbia) P. subquadratus (192176 192177 192178)
Mohawkian457.3 - 451.0USA (New York) Dinorthis iphigenia (104581 104582 104600 104606)
Ashbyan - Blackriveran457.3 - 449.6USA (Tennessee) P. sp. (6694)
Shermanian457.3 - 449.6Canada (Ontario) Dinorthis iphigenia (26272)
Shermanian457.3 - 449.6USA (Minnesota) P. subquadrata (23092)
Wildernessian457.3 - 449.6Canada (Northwest Territories) P. iphigenia (26946 26950)
Ashbyan - Late/Upper Ordovician457.3 - 443.1USA (Virginia) P. sp. (6671)
Chatfieldian453.8 - 451.0Canada (Ontario) Dinorthis iphigenia (26263 26268 26270 26277) P. subcircularis (192086)
Chatfieldian453.8 - 451.0USA (New York) Dinorthis iphigenia (432)
Chatfieldian - Edenian453.8 - 450.2Canada (Nunavut) Austinella subcircularis (24116)
Chatfieldian - Maysvillian453.8 - 449.6Canada (Nunavut) P. subcircularis (192776)
Onnian - Pusgillian453.0 - 449.2United Kingdom (Northern Ireland) P. sp. (163265)
Katian452.8 - 445.2USA (Oklahoma) P. proavitus (10753 55505 55506) P. subquadratus, P. bellistriatus, P. proavitus (55508)
Katian452.8 - 445.2USA (Alaska) P. occidentalis (223863)
Katian452.8 - 445.2Canada (Quebec) P. carletona (158544 158546 158637 158808)
Cheneyan452.5 - 451.3United Kingdom (Scotland) P. sp. (219884)
Edenian451.0 - 450.2USA (Oklahoma) P. bellistriatus (55514) P. subquadratus (55511 55512)
Edenian451.0 - 450.2Canada (Northwest Territories) P. sola (192139) P. sp. (24636)
Edenian451.0 - 450.2USA (Illinois, Iowa) P. proavita (23809)
Edenian451.0 - 450.2USA (Minnesota) P. proavita (23281)
Edenian - Maysvillian451.0 - 449.6USA (Illinois, Iowa) P. subquadrata, P. proavita (23810)
Edenian - Maysvillian451.0 - 449.6Canada (Northwest Territories) P. columbia (192143) P. iphigenia (26943)
Edenian - Maysvillian451.0 - 449.6Canada (Nunavut) P. arctica, Austinella subcircularis (24120)
Edenian - Maysvillian451.0 - 449.6USA (Minnesota) P. subquadrata, P. proavita (23282)
Edenian - Maysvillian451.0 - 449.6Canada (Ontario) Dinorthis iphigenia (26293)
Edenian - Maysvillian451.0 - 449.6USA (Missouri) P. bellistriatus (192100)
Cincinnatian - Llandovery451.0 - 432.9USA (California) P. sp. (226424)
Nabala450.5 - 449.9Estonia P. sp. (168980)
Nabala450.5 - 449.9Belarus Dinorthis solaris (192887)
Nabala450.5 - 449.9Estonia (Viiruma) Dinorthis saxbyana (168791)
Maysvillian450.2 - 449.6USA (New Mexico) P. subquadratus (165308)
Maysvillian450.2 - 449.6USA (Illinois, Iowa) P. proavita (23811)
Maysvillian450.2 - 449.6Canada (Manitoba) P. sp. (34813)
Maysvillian450.2 - 449.6USA (Minnesota) P. subquadrata, P. proavita (23283)
Maysvillian450.2 - 449.6USA (Tennessee) Dinorthis subquadrata (5390)
Maysvillian450.2 - 449.6USA (Texas) P. subquadratus (163337) P. subquadratus, P. bellistriatus (165288)
Maysvillian450.2 - 449.6USA (Iowa) Dinorthis subquadrata (192085) P. subquadrata (26683)
Maysvillian - Richmondian450.2 - 445.5USA (Ohio) P. sp. (351)
Maysvillian - Richmondian450.2 - 445.5USA (Minnesota) P. subquadrata (357 192175)
Maysvillian - Richmondian450.2 - 445.5USA (Colorado) P. bellilamellosus (10338) P. spp., P. proavita (10389)
Vormsi449.9 - 449.5Estonia (Hiiu) Dinorthis saxbyana (166039) Dinorthis solaris (174074) Dinorthis solaris, Dinorthis saxbyana (87306)
Vormsi449.9 - 449.5Poland Dinorthis solaris (174059)
Vormsi449.9 - 449.5Estonia Dinorthis saxbyana (161129 174130) Dinorthis solaris (173954 174356) Dinorthis solaris, Dinorthis saxbyana (168529) P. solaris (168967)
Vormsi449.9 - 449.5Belarus Dinorthis solaris (192889)
Vormsi449.9 - 449.5Estonia (Lääne-Viru) Dinorthis solaris, Dinorthis saxbyana (168502)
Vormsi449.9 - 449.5Estonia (Harju) Dinorthis solaris, Dinorthis saxbyana (161215)
Vormsi449.9 - 449.5Estonia (Lääne) Dinorthis solaris, Dinorthis saxbyana (174104)
Richmondian449.6 - 445.5USA (Idaho) P. subquadratus (183358)
Richmondian449.6 - 445.5USA (Indiana) P. sp. (377) P. subquadrata (399 64165 72432 72434 72437 72440 72441 72521 72523 72524 72525 72527 73095 75107 75109 77718 77966 78894 78896)
Richmondian449.6 - 445.5USA (Wisconsin) P. sp. (75744)
Richmondian449.6 - 445.5USA (Iowa) P. bellilamellosus (192094) P. bellistriatus (192092) P. occidentalis (192102) P. planus (192096) P. subquadratus (192095)
Richmondian449.6 - 445.5USA (Tennessee) P. bellistriatus (13496 192098) P. proavita (192099)
Richmondian449.6 - 445.5USA (Michigan) Dinorthis subquadrata (26312 26313)
Richmondian449.6 - 445.5USA (Texas) P. subquadratus (165281)
Richmondian449.6 - 445.5Canada (Quebec) Dinorthis carletona (173860 173990 174027 174028) P. anticostiensis (158502 158504 158507 158574 158576 158581 158583 158584 158586 158587 158588 158864 163699 163702 163703 163704 163768) P. carletona (158520 158539 158812 163772 163781)
Richmondian449.6 - 445.5Canada (Manitoba) P. rockymontana (166654) P. subquadratus (192101)
Richmondian449.6 - 445.5USA (Wyoming) P. rockymontana (13497 65239)
Richmondian449.6 - 445.5USA (Illinois) P. bellistriatus (192093)
Richmondian449.6 - 445.5USA (Ohio) P. subquadrata (354 72557 72560 72561 72562 72565 72566 72567 72568 72569 72570 72571 72572 72573 72574 72576 72577 72578 72588 72868 72882 72883 72884 72885 72886 72948 75112 77543 78804)
Richmondian449.6 - 445.5USA (Kentucky) P. subquadrata (37833 72691)
Richmondian449.6 - 445.5Canada (Northwest Territories) P. occidentalis (192137)
Richmondian - Ashgill449.6 - 443.1USA (Ohio) P. sp. (394)
Pirgu449.5 - 445.2Estonia (Lääne) Dinorthis solaris (163067 174351)
Pirgu449.5 - 445.2Estonia (Viljandi) Dinorthis solaris (169105)
Pirgu449.5 - 445.2Estonia Dinorthis solaris (168714 174075) Dinorthis solaris, Dinorthis saxbyana (174180)
Ashgill449.5 - 443.1USA (Tennessee) Dinorthis subquadrata, Dinorthis proavita (5393)
Ashgill449.5 - 443.1USA (Wyoming) P. sp. (64473 64474)
Ashgill449.5 - 443.1USA (Kentucky) P. subquadrata (24034)
Ashgill449.5 - 443.1Norway (Trondheim) P. sp. (55724)
Cautleyan449.2 - 448.8Ireland (Leinster) P. porcata (89130)
Cautleyan449.2 - 448.8United Kingdom (Northern Ireland) P. porcata (163261)
Cautleyan449.2 - 448.8United Kingdom P. porcata (163262 163263 163264)
Cautleyan - Rawtheyan449.2 - 445.2United Kingdom (Wales) P. porcata (8291)
Rawtheyan448.8 - 445.2United Kingdom (England) P. sp. (3667)
Rawtheyan448.8 - 445.2United Kingdom (Wales) P. porcata (8293 8327 8328 185125 185208 192503)
Rawtheyan - Hirnantian448.8 - 443.1United Kingdom (Wales) P. sp. (8292)
Hirnantian445.2 - 443.1United Kingdom (Scotland) P. porcata (151601)
Hirnantian445.2 - 443.1United Kingdom (England) P. sp. (3679)
Hirnantian445.2 - 443.1United Kingdom (Wales) P. porcata (8384)
Hirnantian445.2 - 443.1Canada (Québec) P. anticostiensis (184848)
Hirnantian445.2 - 443.1Canada (Quebec) P. anticostiensis (158715 158717 158776 163765 163767 192148) P. carletona (158771 158773) P. sp. (158579)