53:
76:
222:
individuals, but sometimes group together into "wefts", as
Wellman has termed them. The filaments are septate, with the septa looking like "pinch points" where the tube is slightly constricted â like a twisted balloon. No sign of perforation was visible in the septa; perforate spores are only found in
221:
The type species of the genus consists of flattened filaments â perhaps an artefact resulting from post-burial pressure. Their branching is typically at obtuse angles; the irregularly sized grana, which ornament their surfaces, are concentrated at branching points. They are often found as
226:
and fungi, but their absence does not preclude their presence in one of these groups: indeed the perforations are difficult to see or image. There are no other diagnostic features of this species that allow classification in any group. Surface ornamentation is a common
278:" present. Further, side-branches and the flask-shaped protuberances occasionally protrude from the tubes, on which the ornament is larger (2.5 Ξm rather than ~1 Ξm). Such branching typically occurs in pairs across the main thread.
586:
Burgess, N.D.; Edwards, D. (1991). "Classification of uppermost
Ordovician to lower Devonian tubular and filamentous macerals from the Anglo-Welsh Basin".
235:
and some fungi, so does not help in classification. The specimens recovered are most common in near-shore environments; however, they are never abundant.
193:
The organisms comprise tubes of around 10 Ξm diameter, with an ornamented, granular surface texture. These fossils were compared to late
Silurian (
715:
Pratt, L.M.; Phillips, T.L.; Dennison, J.M. (1978). "Evidence of non-vascular land plants from the early
Silurian (Llandoverian) of Virginia, U.S.A.".
821:
205:
by
Charles Wellman ten years later. Similar, unornamented filaments are known from the USA. However, these latter fossils have now been assigned to
160:
It has been applied to microfossils of
Devonian age with fungal affinities, though these taxa have since been recognized as an early growth form of
826:
831:
806:
186:
and environmental reconstruction; the fossils do not display enough features to classify them confidently, even at a
259:. For a start, its surface ornament â which covers most of the surface uniformly â takes an array of forms, with "
201:
by
Sherwood-Pike and Gray, and the genus was used when similar fossils were recovered from the Scottish island of
816:
811:
652:
Sherwood-Pike, M.A.; Gray, J. (1985). "Silurian fungal remains: probable records of the class
Ascomycetes".
746:
688:
Wellman, C.H. (1995). ""Phytodebris" from
Scottish Silurian and Lower Devonian continental deposits".
783:
228:
95:
34:
187:
724:
697:
661:
632:
595:
232:
179:
157:, which is used to categorise any small, branched filaments with external ornamentation.
52:
778:
665:
599:
75:
800:
728:
701:
370:
198:
178:
was erected by
Burgess and Edwards in 1991 to describe tubular fossils retrieved by
194:
183:
182:
from the late Silurian. It was originally intended as a form genus, to facilitate
769:
433:
406:
343:
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207:
162:
154:
61:
42:
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325:
271:
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763:
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38:
30:
268:
424:
379:
202:
87:
637:
260:
740:
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618:"Cord-forming Palaeozoic fungi in terrestrial assemblages"
753:
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8:
611:
609:
741:
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51:
20:
636:
255:. It has a more complex appearance than
625:Botanical Journal of the Linnean Society
588:Botanical Journal of the Linnean Society
153:, Ornamented filament) is an artificial
567:
531:
717:Review of Palaeobotany and Palynology
690:Review of Palaeobotany and Palynology
125:
7:
131:Burgess & Edwards, 1991 (type)
666:10.1111/j.1502-3931.1985.tb00680.x
600:10.1111/j.1095-8339.1991.tb02282.x
14:
822:Early Devonian genus extinctions
90:, Scotland. 200 Ξm long.
1:
827:Fossil taxa described in 1991
197:) fossils retrieved from the
729:10.1016/0034-6667(78)90034-9
702:10.1016/0034-6667(94)00115-Z
548:spinae verrucae: Spiny warts
848:
832:Silurian genus extinctions
551:plia: small streaky knobs.
114:Burgess & Edwards 1991
807:Wenlock first appearances
616:Smith, Martin R. (2016).
124:
119:
96:Scientific classification
94:
82:
73:
59:
50:
23:
248:is a junior synonym of
231:, found for example in
538:
216:Ornatifilum granulatum
16:Extinct genus of fungi
246:Ornatifilum lornensis
240:Ornatifilum lornensis
86:from the Silurian of
29:Temporal range: Late
69:. 250 Ξm long.
542:grana: small grains
233:liverwort rhizoids
229:convergent feature
65:closely resembles
794:
793:
747:Taxon identifiers
638:10.1111/boj.12389
545:coni: small cones
521:Million years ago
274:and occasionally
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180:acid maceration
174:The form genus
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112:
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27:
17:
12:
11:
5:
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843:
835:
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817:Devonian fungi
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812:Silurian fungi
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735:
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723:(2): 121â149.
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696:(3): 255â279.
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631:(4): 452â460.
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84:T. protuberans
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57:
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48:
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28:
15:
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10:
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6:
4:
3:
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371:Carboniferous
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199:Burgsvik beds
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177:
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128:O. granulatum
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19:
754:
738:
720:
716:
710:
693:
689:
657:
653:
647:
628:
624:
594:(1): 41â66.
591:
587:
534:
304:
294:Rhynie chert
256:
249:
245:
244:
239:
220:
215:
206:
195:Ludlow epoch
192:
184:stratigraphy
175:
173:
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127:
107:
106:
83:
66:
60:
24:
18:
755:Ornatifilum
305:Ornatifilum
257:O. granatum
253:protuberans
176:Ornatifilum
142:Ornatifilum
108:Ornatifilum
67:Ornatifilum
25:Ornatifilum
801:Categories
562:References
434:Quaternary
407:Cretaceous
344:Ordovician
251:Tortotubus
208:Tortotubus
170:Background
163:Tortotubus
155:form genus
62:Tortotubus
43:Lochkovian
37:) â Early
527:Footnotes
416:Paleogene
326:Ediacaran
224:red algae
779:Fungorum
770:Q7103526
764:Wikidata
660:: 1â20.
398:Jurassic
389:Triassic
362:Devonian
353:Silurian
335:Cambrian
282:Timeline
272:verrucae
120:Species
39:Devonian
31:Silurian
654:Lethaia
425:Neogene
380:Permian
203:Kerrera
190:level.
188:kingdom
147:ornatus
145:(Latin
102:Genus:
88:Kerrera
35:Wenlock
784:832684
313:
301:
269:spinae
621:(PDF)
261:grana
151:filum
504:â100
498:â150
492:â200
486:â250
480:â300
474:â350
468:â400
462:â450
456:â500
450:â550
444:â600
276:plia
265:coni
725:doi
698:doi
662:doi
633:doi
629:180
596:doi
592:106
510:â50
316:___
803::
781::
766::
721:25
719:.
694:84
692:.
674:^
658:18
656:.
627:.
623:.
608:^
590:.
570:^
267:,
263:,
211:.
166:.
149:+
731:.
727::
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668:.
664::
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602:.
598::
516:0
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