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leaves are arranged in whorls of between 8-13 leaves. The leaf shape is quite variable, being oval in
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were arborescent and grew to a height of 32 feet (9.8 meters).
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Illinois State Museum - Annularia sp. Mazon Creek
Fossils
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310:, but they are always flat and of varying lengths.
257:foliage belonging to extinct plants of the genus
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691:Prehistoric plants of North America
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681:Paleozoic life of New Brunswick
676:Fossils of Georgia (U.S. state)
661:Carboniferous first appearances
610:urn:lsid:ipni.org:names:2204-1
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686:Paleozoic life of Nova Scotia
671:Fossil taxa described in 1821
382:from Italy on display at the
331:have been discovered in the
306:and linear to lanceolate in
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304:Annularia sphenophylloides
18:Annularia sphenophylloides
666:Carboniferous extinctions
132:Scientific classification
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656:Prehistoric plant genera
416:Calamites reconstruction
282:name given to leaves of
472:Paleobiology Database
294:, an extant genus of
651:Carboniferous plants
346:360 to 300
380:Annularia stellata
125:Annularia stellata
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592:Open Tree of Life
498:Taxon identifiers
348:million years ago
308:Annularia radiata
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378:Specimen of
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215:Calamitaceae
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553:iNaturalist
428:Coal forest
339:and in the
271:Description
265:Equisetales
202:Equisetales
192:Equisetidae
646:Horsetails
640:Categories
434:References
335:strata of
296:horsetails
280:form taxon
251:form taxon
188:Subclass:
168:Division:
506:Annularia
403:Calamites
314:Calamites
300:Annularia
291:Equisetum
285:Calamites
276:Annularia
260:Calamites
246:Annularia
235:Sternberg
229:Annularia
145:Kingdom:
36:Annularia
623:40015445
618:Tropicos
521:Q2065549
515:Wikidata
422:See also
343:(around
327:of this
208:Family:
597:5149290
584:1281032
545:3229105
399:foliage
333:Permian
325:Fossils
221:Genus:
198:Order:
178:Class:
149:Plantae
571:2204-1
558:246514
532:188137
529:APDB:
364:Europe
356:Canada
337:Russia
255:fossil
237:(1821)
579:IRMNG
360:China
329:genus
278:is a
249:is a
156:Clade
605:POWO
566:IPNI
540:GBIF
397:The
362:and
50:Preκ
450:MSN
401:of
642::
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442:^
366:.
358:,
354:,
298:.
267:.
158::
100:Pg
225:β
212:β
105:N
95:K
90:J
85:T
80:P
75:C
70:D
65:S
60:O
55:κ
20:)
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