108:
626:
232:, Russia, that lived approximately 40 million years ago. It measured approximately 1.5 mm in length. It was considered the oldest and most complete free-living flatworm body fossil. However, much older flatworm fossils have been reported and it has been re-interpreted as a pseudo-inclusion (largely consisting of air bubbles).
345:
De Baets, K., Dentzien-Dias, P., Harrison, G. W. M., Littlewood, D. T. J., & Parry, L. A. (2021). Fossil constraints on the timescale of parasitic helminth evolution. In The evolution and fossil record of parasitism: identification and macroevolution of parasites (pp. 231-271). Cham: Springer
355:
Szadziewski, R., Szwedo, J., & Sontag, E. (2018). Fauna lasu bursztynowego/Fauna of the amber forest. Bursztyn Bałtycki—Skarb Zatoki Gdańskiej/Baltic Amber—Treasure of the Bay of Gdańsk, 216-217.
546:
440:
275:
711:
533:
427:
667:
559:
453:
336:
Knaust, D. (2010). Remarkably preserved benthic organisms and their traces from a Middle
Triassic (Muschelkalk) mud flat. Lethaia, 43(3), 344-356.
696:
686:
321:
276:"A rhabdocoel turbellarian (Platyhelminthes, Typhloplanoida) in Baltic amber with a review of fossil and sub-fossil platyhelminths"
598:
492:
564:
458:
107:
691:
660:
701:
716:
653:
367:
706:
585:
479:
603:
497:
414:
405:
102:
590:
484:
551:
572:
466:
445:
317:
309:
159:
637:
577:
471:
290:
179:
294:
680:
61:
625:
225:
188:
390:
399:
229:
218:
149:
36:
524:
250:
81:
46:
255:
119:
86:
633:
518:
384:
221:
139:
76:
71:
56:
51:
41:
538:
432:
91:
66:
129:
361:
419:
365:
641:
312:. In Arthur J. Boucot; George O. Poinar, Jr. (eds.).
508:
374:
310:"Eggs, Oviposition, and Maternal Care in Amber"
661:
8:
636:- (or platyhelminth-) related article is a
668:
654:
362:
20:
266:
241:
254:was preoccupied by a genus of fossil
217:) was reported as an extinct, fossil
7:
622:
620:
640:. You can help Knowledge (XXG) by
295:10.1111/j.1744-7410.2003.tb00095.x
14:
624:
106:
712:Taxa named by George Poinar Jr.
1:
697:Fossil taxa described in 2003
687:Prehistoric protostome genera
733:
619:
314:Fossil Behavior Compendium
308:Poinar, George O. (2011).
16:Extinct genus of flatworms
346:International Publishing.
194:
187:
103:Scientific classification
101:
23:
510:Micropalaeosoma balticus
210:Micropalaeosoma balticus
197:Micropalaeosoma balticus
274:Poinar, George (2003).
586:Paleobiology Database
480:Paleobiology Database
283:Invertebrate Biology
215:Palaeosoma balticus
692:Turbellaria genera
702:Fossils of Russia
649:
648:
614:
613:
573:Open Tree of Life
467:Open Tree of Life
368:Taxon identifiers
206:
205:
183:
160:Dalytyphloplanida
724:
670:
663:
656:
628:
621:
607:
606:
594:
593:
581:
580:
568:
567:
555:
554:
542:
541:
529:
528:
527:
501:
500:
488:
487:
475:
474:
462:
461:
449:
448:
436:
435:
423:
422:
410:
409:
408:
395:
394:
393:
363:
356:
353:
347:
343:
337:
334:
328:
327:
305:
299:
298:
280:
271:
259:
246:
178:
171:
111:
110:
96:
33:
29:Temporal range:
21:
732:
731:
727:
726:
725:
723:
722:
721:
677:
676:
675:
674:
617:
615:
610:
602:
597:
589:
584:
576:
571:
563:
558:
550:
545:
537:
532:
523:
522:
517:
504:
496:
491:
483:
478:
470:
465:
457:
452:
444:
439:
431:
426:
418:
413:
406:Micropalaeosoma
404:
403:
398:
389:
388:
383:
376:Micropalaeosoma
370:
360:
359:
354:
350:
344:
340:
335:
331:
324:
307:
306:
302:
278:
273:
272:
268:
263:
262:
247:
243:
238:
202:
199:
177:
174:Micropalaeosoma
169:
140:Platyhelminthes
105:
97:
95:
94:
89:
84:
79:
74:
69:
64:
59:
54:
49:
44:
39:
31:
30:
27:
25:Micropalaeosoma
17:
12:
11:
5:
730:
728:
720:
719:
717:Flatworm stubs
714:
709:
704:
699:
694:
689:
679:
678:
673:
672:
665:
658:
650:
647:
646:
629:
612:
611:
609:
608:
595:
582:
569:
556:
543:
530:
514:
512:
506:
505:
503:
502:
489:
476:
463:
450:
437:
424:
411:
396:
380:
378:
372:
371:
366:
358:
357:
348:
338:
329:
322:
300:
289:(4): 308–312.
265:
264:
261:
260:
240:
239:
237:
234:
204:
203:
201:(Poinar, 2003)
200:
192:
191:
185:
184:
167:
163:
162:
157:
153:
152:
147:
143:
142:
137:
133:
132:
127:
123:
122:
117:
113:
112:
99:
98:
90:
85:
80:
75:
70:
65:
60:
55:
50:
45:
40:
35:
34:
28:
15:
13:
10:
9:
6:
4:
3:
2:
729:
718:
715:
713:
710:
708:
705:
703:
700:
698:
695:
693:
690:
688:
685:
684:
682:
671:
666:
664:
659:
657:
652:
651:
645:
643:
639:
635:
630:
627:
623:
618:
605:
600:
596:
592:
587:
583:
579:
574:
570:
566:
561:
557:
553:
548:
544:
540:
535:
531:
526:
520:
516:
515:
513:
511:
507:
499:
494:
490:
486:
481:
477:
473:
468:
464:
460:
455:
451:
447:
442:
438:
434:
429:
425:
421:
416:
412:
407:
401:
397:
392:
386:
382:
381:
379:
377:
373:
369:
364:
352:
349:
342:
339:
333:
330:
325:
323:9781439859230
319:
316:. CRC Press.
315:
311:
304:
301:
296:
292:
288:
284:
277:
270:
267:
257:
253:
252:
245:
242:
235:
233:
231:
227:
223:
220:
216:
212:
211:
198:
193:
190:
186:
181:
176:
175:
168:
165:
164:
161:
158:
155:
154:
151:
148:
145:
144:
141:
138:
135:
134:
131:
128:
125:
124:
121:
118:
115:
114:
109:
104:
100:
93:
88:
83:
78:
73:
68:
63:
58:
53:
48:
43:
38:
26:
22:
19:
707:Baltic amber
642:expanding it
631:
616:
509:
375:
351:
341:
332:
313:
303:
286:
282:
269:
249:
244:
226:Baltic amber
219:turbellarian
214:
209:
208:
207:
196:
189:Type species
173:
172:
24:
18:
400:Wikispecies
230:Kaliningrad
224:known from
150:Rhabdocoela
681:Categories
256:millipedes
251:Palaeosoma
236:References
213:(formerly
156:Suborder:
391:Q20672314
248:The name
126:Kingdom:
120:Eukaryota
634:flatworm
552:11791718
525:Q2280178
519:Wikidata
420:15699715
385:Wikidata
222:flatworm
136:Phylum:
130:Animalia
116:Domain:
578:3665025
565:1041669
539:6478456
472:3665013
459:1037604
446:1176405
433:4857656
166:Genus:
146:Order:
604:484223
591:169068
498:479777
485:169067
320:
182:, 2004
180:Poinar
32:Eocene
632:This
599:WoRMS
547:IRMNG
493:WoRMS
441:IRMNG
279:(PDF)
638:stub
560:ITIS
534:GBIF
454:ITIS
428:GBIF
318:ISBN
37:PreꞒ
415:EoL
291:doi
287:122
228:of
683::
601::
588::
575::
562::
549::
536::
521::
495::
482::
469::
456::
443::
430::
417::
402::
387::
285:.
281:.
87:Pg
669:e
662:t
655:v
644:.
326:.
297:.
293::
258:.
195:†
170:†
92:N
82:K
77:J
72:T
67:P
62:C
57:D
52:S
47:O
42:Ꞓ
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
