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Harmer F. W. (1920-1925). The
Pliocene Mollusca of Great Britain, being supplementary to S.V. Wood's monograph of the Crag Mollusca. Vol. 2. Monographs of the Palaeontographical Society. 72(344): 485-652, pl. 45-52 (part 1, December 1920); 73(346): 653-704, pl. 53-56 (part 2, July 1921); 75(352):
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MolluscaBase eds. (2024). MolluscaBase. Alvania cossmanni Harmer, 1920 †. Accessed through: World
Register of Marine Species at:
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on the upper part of the body whorl. On the base and on the lower part they show rather strong spiral ridges. The
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is ventricose and much the largest. The whorls are ornamented by very fine but distinct reticulate
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705-856, pl. 57-64 (part 3, December 1923); 76(354): i-xiv, 857-900, pl. 65 (part 4, January 1925)
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https://www.marinespecies.org/aphia.php?p=taxdetails&id=1027564
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This article incorporates text from this source, which is in the
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is subcircular and expanded. The suture is clearly marked.
244:(Original description) The minute, ovate shell is solid. The
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The length of the shell attains 1 mm, its diameter 1 mm.
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272:Fossils of this species were found in late
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440:. You can help Knowledge (XXG) by
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497:Cenozoic gastropods of Europe
487:Gastropods described in 1920
280:, Cornwall, Great Britain.
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50:Scientific classification
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436:-related article is a
16:Species of gastropod
502:Pliocene gastropods
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396:Open Tree of Life
346:Alvania cossmanni
338:Taxon identifiers
201:Alvania cossmanni
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183:Alvania cossmanni
162:A. cossmanni
42:Alvania cossmanni
25:Alvania cossmanni
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248:are convex. The
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117:Littorinimorpha
107:Caenogastropoda
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237:Description
44:(holotype)
481:Categories
361:Q106107789
284:References
276:strata at
250:body whorl
208:of minute
127:Rissooidea
103:Subclass:
97:Gastropoda
434:Rissoidae
254:sculpture
231:Rissoidae
217:gastropod
210:sea snail
155:Species:
137:Rissoidae
73:Kingdom:
67:Eukaryota
40:Shell of
355:Wikidata
278:St. Erth
274:Pliocene
262:aperture
133:Family:
87:Mollusca
83:Phylum:
77:Animalia
63:Domain:
492:Alvania
414:1027564
401:7947621
388:9386283
226:in the
220:mollusc
206:species
180:†
159:†
148:Alvania
143:Genus:
113:Order:
93:Class:
246:whorls
228:family
214:marine
192:, 1920
190:Harmer
432:This
409:WoRMS
375:65XHJ
258:spire
438:stub
383:GBIF
212:, a
370:CoL
222:or
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233:.
469:e
462:t
455:v
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