129:
923:
102:
1088:
276:. These replaced the stout, column-like central muscles, which are present in other linguliforms but apparently absent in acrotretides. The larval shell, which is retained near the pedicle opening, has a strongly pitted texture. The adult shell is smooth, with a rounded outline and an
272:
opening at the apex, while the dorsal valve is convex to a much lesser degree. Based on preserved muscle scars, the lateral muscles were shifted back and condensed into large bundles of
261:
together comprised nearly 70% of brachiopod genera at this time. Though acrotretides continued to diversify during the
Ordovician, their proportional dominance declined, as
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518:. Boulder, Colorado; Lawrence, Kansas: Geological Society of America; University of Kansas. pp. 2901–2965.
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458:; Brunton, C.H.C.; Carlson, S.J.; et al. (1997–2007). Kaesler, Roger L.; Selden, Paul (eds.).
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466:. Boulder, Colorado; Lawrence, Kansas: Geological Society of America; University of Kansas.
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250:
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257:, linguliforms reached the apex of their diversity: acrotretides and their relatives the
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Holmer, L. (1991). "Phyletic relationships within the
Brachiopoda".
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Many acrotretides have a tall and conical ventral valve with a
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506:"Chapter 9: Stratigraphic Distribution of Brachiopods"
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Part H, Brachiopoda (Revised). Volume 6: Supplement
234:. Acrotretida contains 8 families within the sole
1123:
551:
504:Curry, Gordon B.; Brunton, Howard C. (2007).
265:took on a larger role in brachiopod faunas.
8:
450:
448:
1130:
1116:
933:
717:
666:
657:
590:
581:
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115:, a Lower Cambrian member of the family
444:
284:composition, like other linguliforms.
516:Treatise on Invertebrate Paleontology
464:Treatise on Invertebrate Paleontology
7:
1084:
1082:
1040:b29987a9-c875-49b9-8307-78a957820ebd
374:(Upper Cambrian - Upper Ordovician )
384:(Middle Cambrian - Upper Silurian)
1102:. You can help Knowledge (XXG) by
249:, rapidly diversifying during the
14:
1086:
921:
127:
394:(Middle Ordovician - Silurian)
30:Lower Cambrian–Middle Devonian
1:
460:Part H, Brachiopoda (Revised)
336:Walcott & Schuchert, 1908
508:. In Selden, Paul A. (ed.).
16:Extinct order of brachiopods
1180:
1081:
919:
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576:
491:10.1080/11035899109453832
431:Termier & Monod, 1978
411:Termier & Monod, 1978
124:Scientific classification
122:
108:
99:
23:
112:Eohadrotreta zhenbaensis
1149:Prehistoric brachiopods
1098:-related article is a
300:(Lower Cambrian - mid-
1061:Paleobiology Database
241:They lived from the
713:Rhynchonelliformea
318:- Middle Devonian)
1154:Brachiopod orders
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1048:Open Tree of Life
939:Taxon identifiers
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369:Ephippelasmatidae
358:Middle Ordovician
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263:rhynchonelliforms
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1030:NBNSYS0000178806
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362:Upper Ordovician
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316:Lower Ordovician
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27:Temporal range:
21:
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456:Williams, Alwyn
454:
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427:Schizotretoides
340:Middle Cambrian
298:Schuchert, 1893
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251:middle Cambrian
247:Middle Devonian
205:Schuchert, 1893
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126:
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890:Billingsellida
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845:
843:Rhynchonellida
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619:Siphonotretida
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400:Incertae sedis
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344:Upper Cambrian
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255:upper Cambrian
243:Lower Cambrian
239:Acrotretoidea.
212:Acrotretides (
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905:Strophomenida
903:
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882:Strophomenata
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864:Terebratulida
862:
860:
859:Spiriferinida
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738:Dictyonellida
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586:Linguliformea
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421:Sobolev, 1992
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230:in the class
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201:Acrotretoidea
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1104:expanding it
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695:Trimerellida
662:Craniiformea
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459:
425:
415:
405:
392:Rowell, 1965
382:Rowell, 1965
372:Rowell, 1965
354:Rowell, 1965
326:Rowell, 1965
323:Ceratretidae
312:Holmer, 1989
295:Acrotretidae
267:
238:
213:
211:
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183:
117:Acrotretidae
110:
18:
977:Acrotretida
971:Wikispecies
947:Acrotretida
895:Orthotetida
851:Spiriferida
838:Protorthida
830:Pentamerida
759:Kutorginida
751:Kutorginata
687:Craniopsida
606:Acrotretida
407:Craniotreta
351:Eoconulidae
333:Curticiidae
309:Biernatidae
236:superfamily
228:brachiopods
225:linguliform
214:Acrotretida
184:Acrotretida
161:Brachiopoda
109:Diagram of
24:Acrotretida
1143:Categories
1096:brachiopod
900:Productida
869:Thecideida
806:Athyridida
785:Obolellida
772:Obolellata
640:Paterinida
632:Paterinata
567:Brachiopod
439:References
417:Dzhagdicus
328:(Cambrian)
282:phosphatic
259:lingulides
188:Kuhn, 1949
1159:Lingulata
780:Naukatida
611:Lingulida
595:Lingulata
485:: 84–86.
288:Subgroups
253:. In the
232:Lingulata
216:) are an
171:Lingulata
147:Kingdom:
141:Eukaryota
956:Wikidata
814:Atrypida
733:Chileida
725:Chileata
679:Craniida
671:Craniata
302:Silurian
157:Phylum:
151:Animalia
137:Domain:
1053:5297857
962:Q342882
822:Orthida
402:genera
387:Family
377:Family
367:Family
349:Family
331:Family
321:Family
307:Family
293:Family
274:tendons
270:pedicle
245:to the
218:extinct
177:Order:
167:Class:
1037:NZOR:
1017:156768
570:orders
522:
278:organo
1094:This
1066:26431
1004:12158
999:IRMNG
221:order
1100:stub
1012:ITIS
991:1520
520:ISBN
35:PreꞒ
1025:NBN
986:EoL
487:doi
483:113
479:GFF
223:of
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514:.
481:.
462:.
447:^
360:-
342:-
85:Pg
1131:e
1124:t
1117:v
1106:.
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338:(
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280:-
198:†
181:†
90:N
80:K
75:J
70:T
65:P
60:C
55:D
50:S
45:O
40:Ꞓ
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