143:
104:
122:
437:
337:"A Synoptic Review of the Cartilaginous Fishes (Chondrichthyes: Holocephali, Elasmobranchii) from the Upper Jurassic Konservat-Lagerstätten of Southern Germany: Taxonomy, Diversity, and Faunal Relationships"
335:
Villalobos-Segura, Eduardo; Stumpf, Sebastian; Türtscher, Julia; Jambura, Patrick L.; Begat, Arnaud; López-Romero, Faviel A.; Fischer, Jan; Kriwet, Jürgen (March 2023).
530:
301:
from the Late
Jurassic of Germany are known from skeletons. These suggest that it was relatively large, with a body length of 2–3 metres (6.6–9.8 ft), with a
517:
576:
571:
403:"Taxonomic revision of the shark Sphenodus in the Jurassic collections of the "Museo Geologico G.G. Gemmellaro" (Palermo, Sicily)"
142:
485:
543:
438:"Sphenodus (Chondrichthyes, Neoselachii) from the Upper Cretaceous in Nakagawa Town, Hokkaido, Japan"
465:
270:
137:
277:. 29 species have been described, though some of these are likely synonyms, which span from the
548:
535:
457:
418:
376:
358:
309:
consist of a single long, narrow central cusp, with much smaller lateral cusplets. Species of
449:
410:
366:
348:
266:
207:
121:
371:
336:
278:
274:
194:
184:
565:
469:
61:
305:
body with a single dorsal fin placed posteriorly without a fin spine. The teeth of
233:
103:
508:
436:
Kanno, Shiori; Nakajima, Yasuhisa; Hikida, Yoshinori; Sato, Tamaki (2017-04-01).
36:
282:
81:
46:
461:
422:
362:
265:
is an extinct genus of shark. It is placed as a member of the extinct family
286:
154:
86:
380:
502:
414:
302:
174:
76:
71:
56:
51:
41:
522:
402:
293:). Most species are only known from isolated teeth, though the species
91:
66:
453:
353:
290:
164:
479:
401:
CUSUMANO, Antonio; D'ARPA, Carolina; DUFFIN, Christopher J. (2021).
269:, which is either considered to be a member of the extinct order
483:
330:
328:
326:
313:
are thought to have been actively swimming predators.
492:
115:(SMNS 96844-7) from the Late Jurassic of Germany
407:Bollettino della Società Paleontologica Italiana
396:
394:
392:
390:
8:
480:
120:
102:
20:
370:
352:
322:
7:
14:
141:
1:
577:Fossil taxa described in 1843
273:, or the modern shark order
593:
239:
232:
138:Scientific classification
136:
128:
119:
110:
101:
23:
572:Prehistoric shark genera
442:Paleontological Research
16:Fossil genus of fishes
544:Paleobiology Database
415:10.4435/BSPI.2021.10
271:Synechodontiformes
559:
558:
486:Taxon identifiers
454:10.2517/2016PR009
354:10.3390/d15030386
299:Sphenodus nitidus
258:
257:
228:
131:Sphenodus nitidus
113:Sphenodus nitidus
32:Sinemurian–Danian
584:
552:
551:
539:
538:
526:
525:
513:
512:
511:
481:
474:
473:
433:
427:
426:
398:
385:
384:
374:
356:
332:
248:
244:
226:
219:
206:
146:
145:
124:
106:
96:
33:
29:Temporal range:
21:
592:
591:
587:
586:
585:
583:
582:
581:
562:
561:
560:
555:
547:
542:
534:
529:
521:
516:
507:
506:
501:
488:
478:
477:
435:
434:
430:
400:
399:
388:
334:
333:
324:
319:
295:Sphenodus macer
267:Orthacodontidae
254:
251:
246:
242:
225:
217:
208:Orthacodontidae
204:
140:
97:
95:
94:
89:
84:
79:
74:
69:
64:
59:
54:
49:
44:
39:
31:
30:
27:
17:
12:
11:
5:
590:
588:
580:
579:
574:
564:
563:
557:
556:
554:
553:
540:
527:
514:
498:
496:
490:
489:
484:
476:
475:
428:
386:
321:
320:
318:
315:
279:Early Jurassic
275:Hexanchiformes
256:
255:
252:
237:
236:
230:
229:
215:
211:
210:
202:
198:
197:
195:Elasmobranchii
192:
188:
187:
185:Chondrichthyes
182:
178:
177:
172:
168:
167:
162:
158:
157:
152:
148:
147:
134:
133:
126:
125:
117:
116:
108:
107:
99:
98:
90:
85:
80:
75:
70:
65:
60:
55:
50:
45:
40:
35:
34:
28:
15:
13:
10:
9:
6:
4:
3:
2:
589:
578:
575:
573:
570:
569:
567:
550:
545:
541:
537:
532:
528:
524:
519:
515:
510:
504:
500:
499:
497:
495:
491:
487:
482:
471:
467:
463:
459:
455:
451:
447:
443:
439:
432:
429:
424:
420:
416:
412:
408:
404:
397:
395:
393:
391:
387:
382:
378:
373:
368:
364:
360:
355:
350:
346:
342:
338:
331:
329:
327:
323:
316:
314:
312:
308:
304:
300:
296:
292:
288:
284:
280:
276:
272:
268:
264:
263:
253:Agassiz, 1843
250:
238:
235:
231:
227:Agassiz, 1843
224:
223:
216:
213:
212:
209:
203:
200:
199:
196:
193:
190:
189:
186:
183:
180:
179:
176:
173:
170:
169:
166:
163:
160:
159:
156:
153:
150:
149:
144:
139:
135:
132:
127:
123:
118:
114:
109:
105:
100:
93:
88:
83:
78:
73:
68:
63:
58:
53:
48:
43:
38:
26:
22:
19:
493:
445:
441:
431:
406:
344:
340:
310:
306:
298:
294:
261:
260:
259:
240:
234:Type species
221:
220:
130:
112:
111:Skeleton of
24:
18:
409:: 169–181.
566:Categories
448:(2): 122.
347:(3): 386.
317:References
283:Sinemurian
191:Subclass:
509:Q26996004
494:Sphenodus
470:133054888
462:1342-8144
423:0375-7633
363:1424-2818
341:Diversity
311:Sphenodus
307:Sphenodus
287:Paleocene
262:Sphenodus
249:longidens
245:Sphenodus
222:Sphenodus
161:Kingdom:
155:Eukaryota
129:Tooth of
25:Sphenodus
503:Wikidata
381:36950327
303:fusiform
201:Family:
175:Chordata
171:Phylum:
165:Animalia
151:Domain:
536:1341675
523:4824985
372:7614348
214:Genus:
181:Class:
468:
460:
421:
379:
369:
361:
291:Danian
241:Lamna
549:34532
531:IRMNG
466:S2CID
285:) to
518:GBIF
458:ISSN
419:ISSN
377:PMID
359:ISSN
297:and
37:PreꞒ
450:doi
411:doi
367:PMC
349:doi
568::
546::
533::
520::
505::
464:.
456:.
446:21
444:.
440:.
417:.
405:.
389:^
375:.
365:.
357:.
345:15
343:.
339:.
325:^
87:Pg
472:.
452::
425:.
413::
383:.
351::
289:(
281:(
247:)
243:(
218:†
205:†
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.
