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396:(ibid). In turn, the Xenodiscidae provided the root stock for the subsequent expansion and diversification of the Ceratitida in the Triassic.
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genera characterized by compressed, discoidal, evolute shells with rounded to acute venters and commonly with lateral ribs.
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427:, Part-L, Ammonoidea; Geological Soc. of America, reprinted 1990.
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423:Arkell et al., 1957; Mesozoic Ammonoidea,
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111:Museo Civico di Storia Naturale di Milano
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425:Treatise on Invertebrate Paleontology
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381:are goniatitic to weakly ceratitic.
568:. You can help Knowledge (XXG) by
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373:and comprise Middle and Upper
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630:Guadalupian first appearances
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431:The Paleobiology Database
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118:Scientific classification
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369:are the earliest of the
388:, are derived from the
564:-related article is a
635:Lopingian extinctions
527:Paleobiology Database
27:Guadalupian–Lopingian
107:Xenodiscus besairiei
625:Ceratitida families
411:Arkell et al, 1957
392:, a family in the
109:on display at the
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514:Open Tree of Life
443:Taxon identifiers
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24:Temporal range:
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394:Prolecanitida
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386:Xenodiscoidea
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341:Tompophiceras
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615:Xenodiscidae
570:expanding it
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451:Xenodiscidae
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390:Daraelitidae
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367:Xenodiscidae
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364:
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327:Shevyrevites
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299:Metophiceras
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292:Kelteroceras
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285:Kaibinoceras
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271:Hypophiceras
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217:Xenodiscidae
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21:Xenodiscidae
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348:Tozericeras
334:Sutchanites
236:Aldanoceras
221:Frech, 1902
165:Cephalopoda
609:Categories
562:Ceratitida
418:References
371:Ceratitida
355:Xenodiscus
313:Phisonites
306:Penglaites
257:Hanielites
191:Ceratitida
178:Ammonoidea
171:Subclass:
433:July 2009
141:Kingdom:
135:Eukaryota
466:Q8043563
460:Wikidata
278:Iranites
210:Family:
155:Mollusca
151:Phylum:
145:Animalia
131:Domain:
519:4954081
493:3245991
379:Sutures
375:Permian
227:Genera
184:Order:
161:Class:
506:100528
560:This
532:82361
501:IRMNG
400:Notes
566:stub
488:GBIF
365:The
32:PreꞒ
480:HXR
475:CoL
611::
529::
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477::
462::
82:Pg
597:e
590:t
583:v
572:.
214:†
201:†
188:†
175:†
87:N
77:K
72:J
67:T
62:P
57:C
52:D
47:S
42:O
37:Ꞓ
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