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205:. Their shells begin as a loose spiral with whorls not touching which then turns into a straight shaft that ends in a J-shape hook or bend at end. Coarse ribbing and spines are common.
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642:
534:
671:
676:
479:. Treatise on Invertebrate Paleontology, Part L, Mollusca 4. Lawrence, Kansas: Geological Society of America and University of Kansas Press.
437:, a family of Lower Cretaceous ammonites with loosely wound, open planispiral shells, probably originating from within the suborder
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457:
M.R.A. Thomson, « Ammonite faunas of the Lower
Cretaceous of south-eastern Alexander Island »,
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from the lower Aptian of the Paris Basin (France), on display at
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475:Arkell, W.J.; Kummel, B.; Wright, C.W. (1957).
51:Galerie de paléontologie et d'anatomie comparée
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8:
459:British Antarctic Survey Scientific Reports
208:Ancyloceratidae is the type family for the
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20:
450:
216:. They are found in Lower Cretaceous,
433:Ancyloceratidae are derived from the
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597:
595:
615:. You can help Knowledge (XXG) by
340:Mikhailova & Baraboshkin, 2002
14:
348:Kakabadze & Hoedemaeker, 2004
599:
62:
1:
672:Hauterivian first appearances
461:, No. 80 (1974), p.1-44.
197:is a family of heteromorphic
677:Early Cretaceous extinctions
244:D'Orbigny, 1842 - type genus
201:that lived during the Early
308:Klinger & Kennedy, 1977
16:Extinct family of ammonites
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594:
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59:Scientific classification
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611:-related article is a
428:J. de C. Sowerby, 1837
574:Paleobiology Database
380:Stenshin et al., 2014
364:Bogdanova et al. 1978
212:and of the suborder
667:Ammonitida families
477:Mesozoic Ammonoidea
385:Pseudoaustraliceras
316:Delanoy et al. 2008
624:
623:
589:
588:
490:Taxon identifiers
377:Pseudoancyloceras
220:to perhaps Lower
192:
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682:Ammonitida stubs
662:Ancyloceratoidea
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369:Proaustraliceras
313:Hoheneggericeras
305:Helicancyloceras
276:Whitehouse, 1926
227:Genera include:
210:Ancyloceratoidea
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158:Ancyloceratoidea
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29:Lower Cretaceous
27:Temporal range:
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498:Ancyloceratidae
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404:Vermeulen, 2006
393:Pseudocrioceras
388:Kakabadze, 1981
372:Kakabadze, 1977
332:Kakabadze, 1970
300:Kakabadze, 1977
257:Antarcticoceras
195:Ancyloceratidae
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171:Ancyloceratidae
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24:Ancyloceratidae
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417:Toxancyloceras
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260:Thomson, 1974
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249:Ancylotropaeum
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214:Ancyloceratina
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145:Ancyloceratina
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435:Crioceratidae
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420:Delanoy, 2003
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289:Epancyloceras
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273:Australiceras
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233:Ammonitoceras
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151:Superfamily:
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617:expanding it
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439:Lytoceratina
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407:
401:Sarkariceras
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337:Koeneniceras
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329:Kutatissites
327:
324:Sarkar, 1955
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268:Thomel, 1965
265:Audouliceras
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47:Ancyloceras
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18:
548:iNaturalist
409:Shastoceras
396:Spath, 1924
356:Casey, 1960
353:Lithancylus
345:Laqueoceras
321:Jaubertites
297:Epitroapeum
292:Spath, 1930
284:Casey, 1961
281:Caspianites
252:Casey, 1980
241:Ancyloceras
236:Dumas, 1876
224:sediments.
106:Cephalopoda
656:Categories
609:Ammonitida
469:References
203:Cretaceous
175:Meek, 1876
138:Suborder:
132:Ammonitida
119:Ammonoidea
112:Subclass:
45:Fossil of
218:Barremian
199:ammonites
187:See text
82:Kingdom:
76:Eukaryota
53:in Paris
513:Q4753138
507:Wikidata
425:Tropaeum
361:Luppovia
164:Family:
96:Mollusca
92:Phylum:
86:Animalia
72:Domain:
540:3245809
181:Genera
125:Order:
102:Class:
566:100595
553:339399
222:Albian
607:This
579:94467
561:IRMNG
445:Notes
613:stub
535:GBIF
527:6DQ
522:CoL
658::
576::
563::
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524::
509::
441:.
644:e
637:t
630:v
619:.
168:â€
155:â€
142:â€
129:â€
116:â€
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