422:
commissure highly uniplicate; linguiform extension high and narrow, top truncated. Beak short, pointed, substraight to suberect; foramen large, oval in shape, hypothyridid, with well developed rim; deltidial plates wide, disjunct to just conjunct; beak ridges angular, extending laterally; interareas well defined and slightly concave with fine growth lines. Ventral valve gently convex at posterior and flattened anteriorly; sulcus well developed, deep and narrow, with flat bottom, occurring at about posterior 1/3 of valve, abruptly separated from slopes and turning over towards dorsal valve sharply at frontal margin, resulting in high linguiform extension. Dorsal valve moderately convex at umbonal region, but less tumid than in
436:
subparallel; teeth fairly strong, massive and mallet-like, held tightly in sockets; accessory denticulars and dental cavities present. Septalium variably developed, generally short and V-shaped; septum low and massive, only supporting septalium at very posterior part and most part of it existing as a median ridge, running about 1/3 or more of dorsal valve length; hinge plates relatively thick and broad, almost horizontal or slightly inclined ventrally at anterior parts; inner socket ridges well developed, but not strong; crural bases narrow, well formed and given off dorsally from inner margins of hinge plates; crura thick, about 1/4 to 1/3 dorsal valve length, calcarifer, incurved ventrally at anterior parts.
428:, norelliform stage feebly recognizable, sulcation short or even absent; fold eminent, narrow and well elevated over slopes with steep flanks, occurring at about posterior 1/3 to 1/2 of valve and making valve trilobate anteriorly. In some specimens, umbonal region more or less depressed, smooth area generally short or absent. Costae numerous, subangular, on each valve numbering 19-26, with 4-6 on fold and 3-5 in sinus; growth lines feeble, only visible at anterior margin. At gerontic stage, Shell thickened markedly along margins and frontal margin somewhat truncated, reminiscent of
468:
454:
496:
510:
482:
170:
961:
25:
421:
has small sized shells, subtrigonal to slightly subpentagonal in outline, with wide hinge line; inequivalve, almost plano-convex; dorsal valve markedly everted anteriorly, giving shell subcynocephalous to cynocephalus profile. Lateral commissures deflected ventrally at 15 to 30 degrees; anterior
435:
Interior. β Secondary thickenings in apical cavities of both valves. No pedicle collar observed in sectioned specimens; delthyrium wide, trapezoidal to rectangular in shape; lateral cavities narrow and short; dental plates thick and long, beyond hinge zone and divergent to ventral floor, or
566:
Williams, A., Brunton, C.H.C., and MacKinnon, D.I. 1997. Morphology. pp. 321-422. In: R. Kaesler (ed.): Treatise on
Invertebrate Paleontology. Part H. Brachiopoda (Revised)1. The Geological Society of America and University of Kansas Press, Boulder and
439:
The anatomical terms used in this description have been defined by
Williams and Brunton, 1997 can be found at the website on the Trenton Group fossils of the Department of Invertebrate Palaeontology of Harvard
535:
Haas, A., and C. Petri , 1882. Brachiopodes der
Juraformation von Elsass-Lothrigen. Abhandlungen zur Geologischen Spezialkarte von Elsass-Lothringen, 2(2): 161-320, 18 plates.
441:
555:
Shi, Xiao-ying and
Richard E. Grant. Jurassic Rhynchonellids: internal structures and taxonomic revisions β Smithsonian contributions to paleobiology ; no. 73
595:
1008:
1072:
467:
1077:
495:
453:
481:
544:
509:
1067:
588:
581:
556:
399:
During the Middle
Jurassic, the fossil locations cited were on continental shelves, probably in tropical, shallow
424:
1062:
169:
976:
960:
1034:
708:
281:
257:
365:
244:
896:
54:
35:
750:
304:
185:
1039:
1021:
407:
368:. It is roughly 1.4 cm (0.55 in), and has about 15 ribs fanning out from the hinge.
1026:
362:
607:
82:
927:
880:
832:
656:
355:
232:
220:
1056:
942:
919:
901:
775:
623:
388:
120:
732:
699:
932:
888:
875:
867:
796:
788:
724:
643:
358:
208:
95:
999:
937:
906:
843:
822:
809:
677:
669:
604:
351:
140:
105:
817:
648:
632:
404:
384:
145:
89:
44:
24:
993:
851:
770:
762:
716:
380:
135:
130:
115:
110:
100:
1013:
859:
347:
343:
150:
125:
196:
970:
573:
400:
974:
577:
18:
49:
39:
916:
893:
885:
872:
864:
856:
848:
840:
806:
785:
759:
729:
721:
666:
653:
640:
983:
915:
831:
805:
784:
758:
749:
707:
698:
665:
631:
622:
403:seas, where this lampshell lived as a stationary
391:was collected in Lorraine, France (lectotype).
589:
8:
389:specimen that the description is based upon
971:
755:
704:
695:
628:
619:
615:
596:
582:
574:
387:) of France, Germany and Switzerland. The
168:
74:
528:
449:
7:
14:
959:
508:
494:
480:
466:
452:
23:
379:is known from the later Middle
1:
1073:Fossil taxa described in 1911
985:Rhynchonelloidella alemanica
419:Rhynchonelloidella alemanica
377:Rhynchonelloidella alemanica
339:Rhynchonelloidella alemanica
292:Rhynchonelloidella alemanica
178:Rhynchonelloidella alemanica
78:Rhynchonelloidella alemanica
16:Species of marine lamp shell
1094:
1078:Jurassic animals of Europe
957:
694:
618:
614:
425:Rhynchonelloidella smithi
310:
303:
287:
280:
186:Scientific classification
184:
176:
167:
77:
446:Pictures from all sides
38:, as no other articles
545:Paleobiology Data Base
320:Rhynchonella alemanica
1035:Paleobiology Database
327:Ivanoviella alemanica
1068:Jurassic brachiopods
430:Goniorhynchia boueti
314:Rhynchonella varians
502:view of the opening
751:Rhynchonelliformea
273:R. alemanica
258:Rhynchonelloidella
57:for suggestions.
47:to this page from
1050:
1049:
1022:Open Tree of Life
977:Taxon identifiers
968:
967:
955:
954:
951:
950:
745:
744:
741:
740:
690:
689:
686:
685:
488:view of the hinge
474:pedunculate valve
432:(Davidson 1852).
408:suspension feeder
335:
334:
180:, brachial valve
71:
70:
1085:
1043:
1042:
1030:
1029:
1017:
1016:
1004:
1003:
1002:
972:
963:
918:
895:
887:
874:
866:
858:
850:
842:
808:
787:
761:
756:
731:
723:
705:
696:
668:
655:
642:
629:
620:
616:
598:
591:
584:
575:
568:
564:
558:
553:
547:
542:
536:
533:
512:
498:
484:
470:
456:
294:
172:
162:
92:
81:Temporal range:
75:
66:
63:
52:
50:related articles
27:
19:
1093:
1092:
1088:
1087:
1086:
1084:
1083:
1082:
1053:
1052:
1051:
1046:
1038:
1033:
1025:
1020:
1012:
1007:
998:
997:
992:
979:
969:
964:
947:
911:
827:
801:
780:
737:
682:
661:
610:
602:
572:
571:
565:
561:
554:
550:
543:
539:
534:
530:
525:
518:
513:
504:
499:
490:
485:
476:
471:
462:
457:
448:
416:
397:
374:
366:Rhynchonellidae
299:
298:(Rollier, 1911)
296:
289:
276:
261:
247:
245:Rhynchonellidae
235:
223:
211:
199:
163:
161:
160:
159:
158:
153:
148:
143:
138:
133:
128:
123:
118:
113:
108:
103:
98:
87:
86:
83:Middle Jurassic
79:
67:
61:
58:
48:
45:introduce links
28:
17:
12:
11:
5:
1091:
1089:
1081:
1080:
1075:
1070:
1065:
1063:Rhynchonellida
1055:
1054:
1048:
1047:
1045:
1044:
1031:
1018:
1005:
989:
987:
981:
980:
975:
966:
965:
958:
956:
953:
952:
949:
948:
946:
945:
940:
935:
930:
928:Billingsellida
924:
922:
913:
912:
910:
909:
904:
899:
891:
883:
881:Rhynchonellida
878:
870:
862:
854:
846:
837:
835:
833:Rhynchonellata
829:
828:
826:
825:
820:
814:
812:
803:
802:
800:
799:
793:
791:
782:
781:
779:
778:
773:
767:
765:
753:
747:
746:
743:
742:
739:
738:
736:
735:
727:
719:
713:
711:
702:
692:
691:
688:
687:
684:
683:
681:
680:
674:
672:
663:
662:
660:
659:
657:Siphonotretida
651:
646:
637:
635:
626:
612:
611:
603:
601:
600:
593:
586:
578:
570:
569:
559:
548:
537:
527:
526:
524:
521:
520:
519:
514:
507:
505:
500:
493:
491:
486:
479:
477:
472:
465:
463:
460:brachial valve
458:
451:
447:
444:
415:
412:
396:
393:
373:
370:
356:rhynchonellate
350:, small-sized
333:
332:
331:
330:
323:
317:
308:
307:
301:
300:
297:
285:
284:
278:
277:
269:
267:
263:
262:
255:
253:
249:
248:
243:
241:
237:
236:
233:Rhynchonellida
231:
229:
225:
224:
221:Rhynchonellata
219:
217:
213:
212:
207:
205:
201:
200:
195:
193:
189:
188:
182:
181:
174:
173:
165:
164:
156:
155:
154:
149:
144:
139:
134:
129:
124:
119:
114:
109:
104:
99:
94:
93:
80:
69:
68:
55:Find link tool
31:
29:
22:
15:
13:
10:
9:
6:
4:
3:
2:
1090:
1079:
1076:
1074:
1071:
1069:
1066:
1064:
1061:
1060:
1058:
1041:
1036:
1032:
1028:
1023:
1019:
1015:
1010:
1006:
1001:
995:
991:
990:
988:
986:
982:
978:
973:
962:
944:
943:Strophomenida
941:
939:
936:
934:
931:
929:
926:
925:
923:
921:
920:Strophomenata
914:
908:
905:
903:
902:Terebratulida
900:
898:
897:Spiriferinida
892:
890:
884:
882:
879:
877:
871:
869:
863:
861:
855:
853:
847:
845:
839:
838:
836:
834:
830:
824:
821:
819:
816:
815:
813:
811:
804:
798:
795:
794:
792:
790:
783:
777:
776:Dictyonellida
774:
772:
769:
768:
766:
764:
757:
754:
752:
748:
734:
728:
726:
720:
718:
715:
714:
712:
710:
706:
703:
701:
697:
693:
679:
676:
675:
673:
671:
664:
658:
652:
650:
647:
645:
639:
638:
636:
634:
630:
627:
625:
624:Linguliformea
621:
617:
613:
609:
606:
599:
594:
592:
587:
585:
580:
579:
576:
563:
560:
557:
552:
549:
546:
541:
538:
532:
529:
522:
517:
511:
506:
503:
497:
492:
489:
483:
478:
475:
469:
464:
461:
455:
450:
445:
443:
442:
437:
433:
431:
427:
426:
420:
413:
411:
409:
406:
402:
394:
392:
390:
386:
382:
378:
371:
369:
367:
364:
360:
357:
353:
349:
345:
341:
340:
328:
324:
321:
318:
315:
312:
311:
309:
306:
302:
295:
293:
286:
283:
282:Binomial name
279:
275:
274:
268:
265:
264:
260:
259:
254:
251:
250:
246:
242:
239:
238:
234:
230:
227:
226:
222:
218:
215:
214:
210:
206:
203:
202:
198:
194:
191:
190:
187:
183:
179:
175:
171:
166:
152:
147:
142:
137:
132:
127:
122:
117:
112:
107:
102:
97:
91:
88:168β165
84:
76:
73:
65:
56:
51:
46:
42:
41:
37:
32:This article
30:
26:
21:
20:
984:
733:Trimerellida
700:Craniiformea
562:
551:
540:
531:
516:lateral view
515:
501:
487:
473:
459:
438:
434:
429:
423:
418:
417:
398:
376:
375:
372:Distribution
338:
337:
336:
326:
322:Rollier 1911
319:
316:(Schlotheim)
313:
291:
288:
272:
271:
256:
177:
72:
59:
33:
933:Orthotetida
889:Spiriferida
876:Protorthida
868:Pentamerida
797:Kutorginida
789:Kutorginata
725:Craniopsida
644:Acrotretida
440:University.
414:Description
354:, a marine
209:Brachiopoda
1057:Categories
938:Productida
907:Thecideida
844:Athyridida
823:Obolellida
810:Obolellata
678:Paterinida
670:Paterinata
605:Brachiopod
523:References
352:brachiopod
53:; try the
40:link to it
818:Naukatida
649:Lingulida
633:Lingulata
567:Lawrence.
405:epifaunal
385:Bathonian
359:lampshell
329:(Rollier)
266:Species:
192:Kingdom:
62:June 2016
43:. Please
1000:Q7321703
994:Wikidata
852:Atrypida
771:Chileida
763:Chileata
717:Craniida
709:Craniata
381:Jurassic
305:Synonyms
240:Family:
204:Phylum:
197:Animalia
1027:6331709
1014:8541147
860:Orthida
395:Habitat
361:in the
348:extinct
344:species
252:Genus:
228:Order:
216:Class:
157:↓
1040:301942
608:orders
363:family
36:orphan
34:is an
401:coral
342:is a
1009:GBIF
325:Not
96:Preκ
346:of
1059::
1037::
1024::
1011::
996::
410:.
290:β
270:β
146:Pg
90:Ma
85:,
917:β
894:β
886:β
873:β
865:β
857:β
849:β
841:β
807:β
786:β
760:β
730:β
722:β
667:β
654:β
641:β
597:e
590:t
583:v
383:(
151:N
141:K
136:J
131:T
126:P
121:C
116:D
111:S
106:O
101:κ
64:)
60:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
