The microfossil record of early land plants

Philosophical Transactions of the Royal Society B: Biological Sciences

Volumn 355, Issue 1398, 2000, Pages 717-732

  Wellman, Charles H ^a   Gray, Jane ^b  

^a UNIVERSITY OF SHEFFIELD   (United Kingdom)

^b UNIVERSITY OF OREGON   (United States)

Author keywords

Bryophytes; early embryophytes; Early land plants; Phytodebris; Spores; Tracheophytes

Indexed keywords

FOSSIL RECORD; LLANDOVERIAN; LLANVIRNIAN; MICROFOSSIL; PALEOBOTANY; PLANT; TERRESTRIAL ECOSYSTEM;

EID: 0034729777     PISSN: 09628436     EISSN: None     Source Type: Journal    
DOI: 10.1098/rstb.2000.0612     Document Type: Conference Paper

References (86)

1. Allen, K. C. 1980 A review of in situ Late Silurian and Devonian spores. Rev. Palaeobot. Palynol. 29, 253-270.
2. Banks, H. P. 1975 The oldest vascular land plants: a note of caution. Rev. Palaeobot. Palynol. 20, 13-25.
3. Blackmore, S. & Barnes, S. H. 1987 Embryophyte spore walls: origin, homologies and development. Cladistics 3, 185-195.
4. Burgess, N. D. 1991 Silurian cryptospores and miospores from the type Llandovery area, south-west Wales. Palaeontology 34, 575-599.
5. Burgess, N. D. & Edwards, D. 1991 Classification of uppermost Ordovician to Lower Devonian tubular and filamentous macerals from the Anglo-Welsh Basin. Bot. J. Linn. Soc. 106, 41-66.
6. Burgess, N. D. & Richardson, J. B. 1995 Late Wenlock to early Pridoli cryptospores and miospores from south and southwest Wales, Great Britain. Palaeontographica B236, 1-44.
7. Edwards, D. 1990 Constraints on Silurian and Early Devonian phytogeographic analysis based on megafossils. In Palaeozoic palaeogeography and biogeography (ed. W. S. McKerrow & C. R. Scotese), pp. 233-242. Memoir No. 12. London: The Geological Society.
8. Edwards, D. 1996 New insights into early land ecosystems: a glimpse of a Lilliputian world. Rev. Palaeobot Palynol. 90, 159-174.
9. Edwards, D. 1998 Climate signals in Palaeozoic land plants. Phil. Trans. R. Soc. Lond. B353, 141-157.
10. Edwards, D. & Richardson, J. B. 1996 Review of in situ spores in early land plants. In Palynology: principles and applications, vol. 1, Principles (ed. J. Jansonius & D. C. McGregor), pp. 391-407. Salt Lake City, UT: American Association of Stratigraphic Palynologists Foundation. Publishers Press.
11. Edwards, D. & Richardson, J. B. 2000 Progress in reconstructing vegetation on the Old Red Sandstone continent: two Emphanisporites producers from the Lochkovian of the Welsh Borderland. In New perspectives on the Old Red Sandstone (ed. P. F. Friend & B. P. J. Williams). Geological Society Special Publication.
12. Edwards, D. & Wellman, C. H. 1996 Older plant macerals (excluding spores). In Palynology: principles and applications, vol. 1, Principles (ed. J. Jansonius & D. C. McGregor), pp. 383-387. Salt Lake City, UT: American Association of Stratigraphic Palynologists Foundation. Publishers Press.
13. Edwards, D. & Wellman, C. H. 2000 Embryophytes on land: the Ordovician to Lochkovian (Lower Devonian) record. In Plants invade the land (ed. D. Edwards & P. G. Gensel). (In the press.)
14. Edwards, D., Davies, K. L. & Axe, L. 1992 A vascular conducting strand in the early land plant Cooksonia. Nature 357, 683-685.
15. Edwards, D., Ducket, J. G. & Richardson, J. B. 1995a Hepatic characters in the earliest land plants. Nature 374, 635-636.
16. Edwards, D., Davies, K. L., Richardson, J. B. & Axe, L. 1995b The ultrastructure of spores of Cooksonia pertoni. Palaeontology 38, 153-168.
17. Edwards, D., Davies, K. L., Richardson, J. B., Wellman, C. H. & Axe, L. 1996a Ultrastructure of Synorisporites downtonensis and Retusotriletes cf. coronadus in spore masses from the Pridoli of the Welsh Borderland. Palaeontology 39, 783-800.
18. Edwards, D., Abbott, G. D. & Raven, J. A. 1996b Cuticles of early land plants: a palaeoecophysiological evaluation. In Plant cuticles - an integrated functional approach (ed. G. Kersteins), pp. 1-31. Oxford: BIOS Scientific Publishers.
19. Edwards, D., Wellman, C. H. & Axe, L. 1998 The fossil record of early land plants and interrelationships between primitive embryophytes: too little too late? In Bryology for the 21st century (ed. J. W. Bates, N. W. Ashton & J. G. Duckett), pp. 15-43. Maney Publishing and British Bryological Society.
20. Edwards, D., Wellman, C. H. & Axe, L. 1999 Tetrads in sporangia and spore masses from the Upper Silurian and Lower Devonian of the Welsh Borderland. Bot. J. Linn. Soc. 130, 111-115.
21. Fanning, U., Richardson, J. B. & Edwards, D. 1988 Cryptic evolution in an early land plant. Evol. Trends Plants 2, 13-24.
22. Fanning, U., Richardson, J. B. & Edwards, D. 1991 A review of in situ spores in Silurian land plants. In Pollen and spores, patterns of diversification (ed. S. Blackmore & S. H. Barnes), pp. 25-47. The Systematics Association Special Volume No. 44. Oxford: Clarendon Press.
23. Garratt, M. J. 1978 New evidence for a Silurian (Ludlow age) for the earliest Baragwanathia flora. Alcheringa 2, 217-224.
24. Gensel, P. G. 1980 Devonian in situ spores: a survey and discussion. Rev. Palaeobot. Palynol. 30, 101-132.
25. Gensel, P. G., Johnson, N. G. & Strother, P. K. 1991 Early land plant debris (Hooker's "waifs and strays"?). Palaios 5, 520-547.
26. Graham, L. E. & Gray, J. 2000 The origin, morphology and ecophysiology of early embryophytes: neontological and paleontological perspectives. In Plants invade the land (ed. D. Edwards & P. G. Gensel). (In the press.)
27. Gray, J. 1984 Ordovician Silurian land plants: the interdependence of ecology and evolution. Special Papers in Palaeontology 32, 281-295.
28. Gray, J. 1985 The microfossil record of early land plants: advances in understanding of early terrestrialization, 1970 1984. Phil. Trans. R. Soc. Lond. B309, 167-195.
29. Gray, J. 1988 Land plant spores and the Ordovician Silurian boundary. Bull. Br. Mus. Nat. Hist. (Geol.) 43, 351-358.
30. Gray, J. 1991 Tetrahedraletes, Nodospora, and the 'cross' tetrad: an accretion of myth. In Pollen and spores, patterns, of diversification (ed. S. Blackmore & S. H. Barnes), pp. 49-87. The Systematics Association Special Volume No. 44. Oxford: Clarendon Press.
31. Gray, J. 1993 Major Paleozoic land plant evolutionary bioevents. Palaeogeogr. Palaeoclimatol. Palaeoecol. 104, 153-169.
32. Gray, J. & Boucot, A. J. 1977 Early vascular land plants: proof and conjecture. Lethaia 10, 145-174.
33. Gray, J. & Boucot, A. J. 1979 The Devonian land plant Protosalvinia. Lethaia 12, 57-63.
34. Gray, J., Massa, D. & Boucot, A. J. 1982 Caradocian land plant microfossils from Libya. Geology 10, 197-201.
35. Gray, J., Theron, J. N. & Boucot, A. J. 1986 Age of the Cedarberg Formation, South Africa and early land plant evolution. Geol. Mag. 123, 445-454.
36. Gray, J., Boucot, A. J., Grahn, Y. & Himes, G. 1992 A new record of early Silurian land plant spores from the Paraná Basin, Paraguay (Malvinokaffric Realm). Geol. Mag. 129, 741-752.
37. Habgood, K. S. 2000 Two cryptospore-bearing land plants from the Lower Devonian (Lochkovian) of the Welsh Borderland. Bot. J. Linn. Soc. (In the press.)
38. Harland, W. B., Armstrong, R. L., Cox, A. V., Craig, L. E., Smith, A. G. & Smith, D. G. 1989 A geologic timescale. Cambridge University Press.
39. Hemsley, A. R. 1994 The origin of the land plant sporophyte: an interpolation scenario. Biol. Rev. 69, 263-273.
40. Hueber, F. M. 1996 A solution to the enigma of Prototaxites. The Palaeontological Society Special Publication 8. Sixth North American Paleontological Convention Abstracts.
41. Hughes, N. F. 1994 The enigma of angiosperm origins. Cambridge University Palaeobiology Series no. 1. Cambridge University Press.
42. Johnson, N. G. 1985 Early Silurian palynomorphs from the Tuscarora Formation in central Pennsylvania and their paleobotanical and geological significance. Rev. Palaeobot. Palynol. 45, 307-360.
43. Kenrick, P. K. & Crane, P. R. 1997 The origin and early diversification of land plants. Washington and London: Smithsonian Institution Press.
44. Kroken, S. B., Graham, L. E. & Cook, M. E. 1996 Occurrence and evolutionary significance of resistant cell walls in charophytes and bryophytes. Am. J. Bot. 83, 1241-1254.
45. Kurmann, M. H. & Doyle, J. A. 1994 Ultrastructure of fossil spores and pollen: its bearing on relationships among fossil and living groups. Kew: The Royal Botanic Gardens.
46. Lang, W. H. 1937 On the plant-remains from the Downtonian of England and Wales. Phil. Trans. R. Soc. Lond. B227, 245-291.
47. Mishler, B. D., Lewis, L. A., Buchheim, M. A., Renzaglia, K. S., Garbary, D. J., Delwiche, C. F., Zechman, F. W., Kantz, T. S. & Chapman, R. L. 1994 Phylogenetic relationships of the "green algae" and "bryophytes". Ann. Missouri Bot. Gdn 81, 451-483.
48. Poinar, Jr. G. O., Peterson, E. B. & Platt, J. L. 2000 Fossil lichens in the New World amber (Parmelia). Lichenologist. (In the press.)
49. Pratt, L. M., Phillips, T. L. & Dennison, J. M. 1978 Evidence of non-vascular land plants from the early Silurian (Llandoverian) of Virginia. USA. Rev. Palaeobot. Palynol. 25, 121-149.
50. Richardson, J. B. 1988 Late Ordovician and Early Silurian cryptospores and miospores from northeast Libya. In Subsurface palynostratigraphy of northeast Libya (ed. A. El-Arnauti, B. Owens & B. Thusu), pp.89-109. Benghazi, Libya: Garyounis University Publications.
51. Richardson, J. B. 1992 Origin and evolution of the earliest land plants. In Major events in the history of life (ed. W. J. Schopf), pp.95-118. Boston, MA: Jones and Bartlett Publishers.
52. Richardson, J. B. 1996a Lower and middle Palaeozoic records of terrestrial palynomorphs. In Palynology: principles and applications, vol. 2, Applications (ed. J. Jansonius & D. C. McGregor), pp.555-574. Salt Lake City, UT: American Association of Stratigraphic Palynologists Foundation. Publishers Press.
53. Richardson, J. B. 1996b Abnormal spores and possible interspecific hybridization as a factor in the evolution of Early Devonian land plants. Rev. Palaeobot. Palynol. 93, 333-340.
54. Richardson, J. B. & Ioannides, N. 1973 Silurian palynomorphs from the Tanezzuft and Acacus Formations, Tripolitania, North Africa. Micropalaeontology 19, 201-252.
55. Richardson, J. B. & McGregor, D. C. 1986 Silurian and Devonian spore zones of the Old Red Sandstone Continent and adjacent regions. Geol. Surv. Can. Bull. 364, 1-79.
56. Richardson, J. B., Ford, J. H. & Parker, F. 1984 Miospores, correlation and age of some Scottish Lower Old Red Sandstone sediments from the Strathmore region (Fife and Angus). J. Micropalaeont. 3, 109-124.
57. Rodriguez, R. M. 1983 Palynologia de las Formaciónes del Siluro-superior-Devónico inferiorde la Cordillera Cantabrica. Publ. Univ. Léon (Españia). Oviedo: Graficas Summa.
58. Rogerson, E. C. W., Edwards, D., Davies, K. L. & Richardson, J. B. 1993 Identification of in situ spores in a Silurian Cooksonia from the Welsh Borderland. Spec. Pap. Palaeont. 49, 17-30.
59. Scotese, C. R. & McKerrow, W. S. 1990 Revised maps and introduction. In Palaeozoic palaeogeograply and biogeography (ed. W. S. McKerrow & C. R. Scotese), Memoir No. 12. London: Geological Society of London.
60. Sherwood-Pike, M. A. & Gray, J. 1985 Silurian fungal remains: probable records of the Class Ascomycetes. Lethaia 18, 1-20.
61. Steemans, P. 1999 Paléodiversification des spores et des cryptospores de L'Ordovicien au Dévonien inferieur. Geobios 32, 341-352.
62. Steemans, P., Le Herisse, A. & Bozdogan, N. 1996 Ordovician and Silurian cryptospores and miospores from southeastern Turkey. Rev. Palaeobot. Palynol. 93, 35-76.
63. Steemans, P., Higgs, K. & Wellman, C. H. 2000 Cryptospores and trilete spores from the Llandovery, NYYM-2 borehole, Saudi Arabia. Special GeoArabia Publication no. 1, pp. 92-115. Bahrain: Gulf PetroLink.
64. Strother, P. K. 1988 New species of Nematothallus from the Silurian Bloomsburg Formation of Pennsylvania. J. Paleontol. 62, 967-982.
65. Strother, P. K. 1991 A classification schema for the cryptospores. Palynology 15, 219-236.
66. Strother, P. K. & Traverse, A. 1979 Plant microfossils from Llaudoverian and Wenlockian rocks of Pennsylvania. Palynology 3, 1-21.
67. Strother, P. K., Al-Hajri, S. & Traverse, A. 1996 New evidence for land plants from the lower Middle Ordovician of Saudi Arabia. Geology 24, 55-58.
68. Taylor, T. N., Hass, H., Remy, W. & Kerp, H. 1995 The oldest fossil lichen. Nature 378, 244.
69. Taylor, T. N., Hass, H. & Kerp, H. 1997 A cyanolichen from the Lower Devonian Rhynic Chert. Am. J. Bot. 84, 992-1004.
70. Taylor, W. A. 1995a Spores in earliest land plants. Nature 373, 391-392.
71. Taylor, W. A. 1995b Ultrastructure of Tetrahedraletes medinensis (Strother and Traverse) Wellman and Richardson, from the Upper Ordovician of southern Ohio. Rev. Palaeobot. Palynol. 85, 183-187.
72. Taylor, W. A. 1996 Ultrastructure of lower Paleozoic dyads from southern Ohio. Rev. Palaeobot. Palynol. 92, 269-279.
73. Taylor, W. A. 1997 Ultrastructure of lower Paleozoic dyads from southern Ohio II: Dyadospora murusattenuata, functional and evolutionary considerations. Rev. Palaeobot. Palynol. 97, 1-8.
74. Tekbali, A. O. & Wood, G. D. 1991 Silurian spores, acritarchs and chitinozoans from the Bani Walid Borehole of the Ghadames Basin, Northwest Libya. Geol. Libya 4, 1243-1273.
75. Vavrdova, M. 1984 Some plant microfossils of possible terrestrial origin from the Ordovician of Central Bohemia. Vestnik Ustredniho Ustavu Geologickeho 3, 165-170.
76. Wellman, C. H. 1993a A Lower Devonian sporomorph assemblage from the Midland Valley of Scotland. Trans. R. Soc. Edinb: Earth Sci. 84, 117-136.
77. Wellman, C. H. 1993b A land plant microfossil assemblage of Mid Silurian age from the Stonehaven Group, Scotland. J. Micropalaeont. 12, 47-66.
78. Wellman, C. H. 1995 "Phytodebris" from Scottish Silurian and Lower Devonian continental deposits. Rev. Palaeobot. Palynol. 84, 255-279.
79. Wellman, C. H. 1996 Cryptospores from the type area of the Caradoc Series in southern Britain. Spec. Pap. Palaeontol. 55, 103-136.
80. Wellman, C. H. 1999 Sporangia containing Scylaspora from the Lower Devonian of the Welsh Borderland. Palaeontology 42, 67-81.
81. Wellman, C. H. & Richardson, J. B. 1993 Terrestrial plant microfossils from Silurian inliers of the Midland Valley of Scotland. Palaeontology 36, 155-193.
82. Wellman, C. H. & Richardson, J. B. 1996 Sporomorph assemblages from the "Lower Old Red Sandstone" of Lorne, Scotland. Spec. Pap. Palaeont. 55, 41-101.
83. Wellman, C. H., Edwards, D. & Axe, L. 1998a Permanent dyads in sporangia and spore masses from the Lower Devonian of the Welsh Borderland. Bot. J. Linn. Soc. 127, 117-147.
84. Wellman, C. H., Edwards, D. & Axe, L. 1998b Ultrastructure of laevigate hilate spores in sporangia and spore masses from the Upper Silurian and Lower Devonian of the Welsh Borderland. Phil. Trans. R. Soc. Lond. B353, 1983-2004.
85. Wellman, C. H., Higgs, K. T. & Steemans, P. 2000a Spore assemblages in the Silurian sequence in borehole HWYH-151 from Saudi Arabia. Special GeoArabia Publication no. 1, pp. 116-133. Bahrain: Gulf PetroLink.
86. Wellman, C. H., Habgood, K., Jenkins, G. & Richardson, J. B. 2000b A new plant assemblage (microfossil and megafossil) from the Lower Old Red Sandstone of the Anglo-Welsh Basin: its implications for the palaeoecology of early terrestrial ecosystems. Rev. Palaeobot. Palynol. (In the press.)