Pteridosperm (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pteridosperm" in English language version.

Last modified: 00:07:58, 21 April 2026 (UTC)

Ref.Un. Ref.Website

Global rank English rank

1111doi.org

2^nd place

55worldcat.org

4^th place

51archive.org

6^th place

44semanticscholar.org

15^th place

8^th place

44nih.gov

5^th place

22cambridge.org

209^th place

151^st place

11uchicago.edu

226^th place

199^th place

11kb.se

276^th place

804^th place

11jstor.org

23^rd place

15^th place

11wiley.com

150^th place

174^th place

11schweizerbart.de

6,346^th place

8,812^th place

11adsabs.harvard.edu

14^th place

9^th place

11sanbi.org

3,857^th place

2,609^th place

adsabs.harvard.edu (Global: 14^th place; English: 9^th place)

ui.adsabs.harvard.edu

Vega, Juan Carlos; Archangelsky, Sergio (2001-04-25). "Austrocalyxaeae, a new pteridoserm family from Gondwana". Palaeontographica Abteilung B. 257 (1–6): 1–16. Bibcode:2001PalAB.257....1V. doi:10.1127/palb/257/2001/1. S2CID 248282839.

archive.org (Global: 6^th place; English: 6^th place)

Anderson, John M.; Anderson, Heidi M. (2003). "Heyday of the gymnosperms: systematics and biodiversity of the Late Triassic Molteno fructifications". Strelitzia. 15: 1–308.

cambridge.org (Global: 209^th place; English: 151^st place)

Barnard, P. D. W.; Long, A. G. (1973). "4.—On the Structure of a Petrified Stem and some Associated Seeds from the Lower Carboniferous Rocks of East Lothian, Scotland". Transactions of the Royal Society of Edinburgh. 69 (4): 91–108. doi:10.1017/S008045680001499X. ISSN 0080-4568. S2CID 129792299.
Barnard, P. D. W.; Long, A. G. (1975). "10.—Triradioxylon—a New Genus of Lower Carboniferous Petrified Stems and Petioles together with a Review of the Classification of Early Pterophytina". Transactions of the Royal Society of Edinburgh. 69 (10): 231–249. doi:10.1017/S0080456800015179. ISSN 0080-4568.

doi.org (Global: 2^nd place; English: 2^nd place)

Elgorriaga, Andrés; Escapa, Ignacio H.; Cúneo, N. Rubén (July 2019). "Relictual Lepidopteris (Peltaspermales) from the Early Jurassic Cañadón Asfalto Formation, Patagonia, Argentina". International Journal of Plant Sciences. 180 (6): 578–596. doi:10.1086/703461. ISSN 1058-5893.
Rothwell G. W.; Scheckler S. E.; Gillespie W. H. (1989). "Elkinsia gen. nov., a Late Devonian gymnosperm with cupulate ovules". Botanical Gazette. 150 (2): 170–189. doi:10.1086/337763. S2CID 84303226.
McLoughlin S.; Carpenter R.J.; Jordan G.J.; Hill R.S. (2008). "Seed ferns survived the end-Cretaceous mass extinction in Tasmania". American Journal of Botany. 95 (4): 465–471. doi:10.3732/ajb.95.4.465. PMID 21632371.
Oliver, F.W.; Scott, D.H. (1904). "On the structure of the Palaeozoic seed Lagenostoma Lomaxi, with a statement of the evidence upon which it is referred to Lyginodendron". Philosophical Transactions of the Royal Society of London. Series B. 197 (225–238): 193–247. doi:10.1098/rstb.1905.0008.
Kidston R (1904). "On the fructification of Neuropteris heterophylla, Brongniart". Philosophical Transactions of the Royal Society of London, Series B. 197 (225–238): 1–5. doi:10.1098/rstb.1905.0001.
Hilton, J. & Bateman, R. M. (2006), "Pteridosperms are the backbone of seed-plant phylogeny", Journal of the Torrey Botanical Society, 33: 119–168, doi:10.3159/1095-5674(2006)133[119:PATBOS]2.0.CO;2, S2CID 86395036
Taylor, Edith L.; Taylor, Thomas N. (January 2009). "Seed ferns from the late Paleozoic and Mesozoic: Any angiosperm ancestors lurking there?". American Journal of Botany. 96 (1): 237–251. doi:10.3732/ajb.0800202. ISSN 0002-9122. PMID 21628187.
Wang, Jun; Pfefferkorn, Hermann W. (2010-01-22). "Nystroemiaceae, a new family of Permian gymnosperms from China with an unusual combination of features". Proceedings of the Royal Society B: Biological Sciences. 277 (1679): 301–309. doi:10.1098/rspb.2009.0913. ISSN 0962-8452. PMC 2842674. PMID 19656793.
Vega, Juan Carlos; Archangelsky, Sergio (2001-04-25). "Austrocalyxaeae, a new pteridoserm family from Gondwana". Palaeontographica Abteilung B. 257 (1–6): 1–16. Bibcode:2001PalAB.257....1V. doi:10.1127/palb/257/2001/1. S2CID 248282839.
Barnard, P. D. W.; Long, A. G. (1973). "4.—On the Structure of a Petrified Stem and some Associated Seeds from the Lower Carboniferous Rocks of East Lothian, Scotland". Transactions of the Royal Society of Edinburgh. 69 (4): 91–108. doi:10.1017/S008045680001499X. ISSN 0080-4568. S2CID 129792299.
Barnard, P. D. W.; Long, A. G. (1975). "10.—Triradioxylon—a New Genus of Lower Carboniferous Petrified Stems and Petioles together with a Review of the Classification of Early Pterophytina". Transactions of the Royal Society of Edinburgh. 69 (10): 231–249. doi:10.1017/S0080456800015179. ISSN 0080-4568.

jstor.org (Global: 23^rd place; English: 15^th place)

Taylor, Edith L., et al. "Mesozoic Seed Ferns: Old Paradigms, New Discoveries." The Journal of the Torrey Botanical Society, vol. 133, no. 1, 2006, pp. 62–82. JSTOR, JSTOR 20063823. Accessed 24 Sept. 2023.

kb.se (Global: 276^th place; English: 804^th place)

urn.kb.se

McLoughlin S.; Carpenter R.J.; Jordan G.J.; Hill R.S. (2008). "Seed ferns survived the end-Cretaceous mass extinction in Tasmania". American Journal of Botany. 95 (4): 465–471. doi:10.3732/ajb.95.4.465. PMID 21632371.

nih.gov (Global: 5^th place; English: 5^th place)

pubmed.ncbi.nlm.nih.gov

McLoughlin S.; Carpenter R.J.; Jordan G.J.; Hill R.S. (2008). "Seed ferns survived the end-Cretaceous mass extinction in Tasmania". American Journal of Botany. 95 (4): 465–471. doi:10.3732/ajb.95.4.465. PMID 21632371.
Taylor, Edith L.; Taylor, Thomas N. (January 2009). "Seed ferns from the late Paleozoic and Mesozoic: Any angiosperm ancestors lurking there?". American Journal of Botany. 96 (1): 237–251. doi:10.3732/ajb.0800202. ISSN 0002-9122. PMID 21628187.
Wang, Jun; Pfefferkorn, Hermann W. (2010-01-22). "Nystroemiaceae, a new family of Permian gymnosperms from China with an unusual combination of features". Proceedings of the Royal Society B: Biological Sciences. 277 (1679): 301–309. doi:10.1098/rspb.2009.0913. ISSN 0962-8452. PMC 2842674. PMID 19656793.

ncbi.nlm.nih.gov

Wang, Jun; Pfefferkorn, Hermann W. (2010-01-22). "Nystroemiaceae, a new family of Permian gymnosperms from China with an unusual combination of features". Proceedings of the Royal Society B: Biological Sciences. 277 (1679): 301–309. doi:10.1098/rspb.2009.0913. ISSN 0962-8452. PMC 2842674. PMID 19656793.

sanbi.org (Global: 3,857^th place; English: 2,609^th place)

opus.sanbi.org

Anderson, John M.; Anderson, Heidi M.; Cleal, Chris J. (2007). "Brief history of the gymnosperms: classification, biodiversity, phytogeography and ecology" (PDF). Strelitzia. 20: 1–280.

schweizerbart.de (Global: 6,346^th place; English: 8,812^th place)

Vega, Juan Carlos; Archangelsky, Sergio (2001-04-25). "Austrocalyxaeae, a new pteridoserm family from Gondwana". Palaeontographica Abteilung B. 257 (1–6): 1–16. Bibcode:2001PalAB.257....1V. doi:10.1127/palb/257/2001/1. S2CID 248282839.

semanticscholar.org (Global: 15^th place; English: 8^th place)

api.semanticscholar.org

Rothwell G. W.; Scheckler S. E.; Gillespie W. H. (1989). "Elkinsia gen. nov., a Late Devonian gymnosperm with cupulate ovules". Botanical Gazette. 150 (2): 170–189. doi:10.1086/337763. S2CID 84303226.
Hilton, J. & Bateman, R. M. (2006), "Pteridosperms are the backbone of seed-plant phylogeny", Journal of the Torrey Botanical Society, 33: 119–168, doi:10.3159/1095-5674(2006)133[119:PATBOS]2.0.CO;2, S2CID 86395036
Vega, Juan Carlos; Archangelsky, Sergio (2001-04-25). "Austrocalyxaeae, a new pteridoserm family from Gondwana". Palaeontographica Abteilung B. 257 (1–6): 1–16. Bibcode:2001PalAB.257....1V. doi:10.1127/palb/257/2001/1. S2CID 248282839.
Barnard, P. D. W.; Long, A. G. (1973). "4.—On the Structure of a Petrified Stem and some Associated Seeds from the Lower Carboniferous Rocks of East Lothian, Scotland". Transactions of the Royal Society of Edinburgh. 69 (4): 91–108. doi:10.1017/S008045680001499X. ISSN 0080-4568. S2CID 129792299.

uchicago.edu (Global: 226^th place; English: 199^th place)

journals.uchicago.edu

Elgorriaga, Andrés; Escapa, Ignacio H.; Cúneo, N. Rubén (July 2019). "Relictual Lepidopteris (Peltaspermales) from the Early Jurassic Cañadón Asfalto Formation, Patagonia, Argentina". International Journal of Plant Sciences. 180 (6): 578–596. doi:10.1086/703461. ISSN 1058-5893.

wiley.com (Global: 150^th place; English: 174^th place)

bsapubs.onlinelibrary.wiley.com

Taylor, Edith L.; Taylor, Thomas N. (January 2009). "Seed ferns from the late Paleozoic and Mesozoic: Any angiosperm ancestors lurking there?". American Journal of Botany. 96 (1): 237–251. doi:10.3732/ajb.0800202. ISSN 0002-9122. PMID 21628187.

worldcat.org (Global: 4^th place; English: 4^th place)

search.worldcat.org

Elgorriaga, Andrés; Escapa, Ignacio H.; Cúneo, N. Rubén (July 2019). "Relictual Lepidopteris (Peltaspermales) from the Early Jurassic Cañadón Asfalto Formation, Patagonia, Argentina". International Journal of Plant Sciences. 180 (6): 578–596. doi:10.1086/703461. ISSN 1058-5893.
Taylor, Edith L.; Taylor, Thomas N. (January 2009). "Seed ferns from the late Paleozoic and Mesozoic: Any angiosperm ancestors lurking there?". American Journal of Botany. 96 (1): 237–251. doi:10.3732/ajb.0800202. ISSN 0002-9122. PMID 21628187.
Wang, Jun; Pfefferkorn, Hermann W. (2010-01-22). "Nystroemiaceae, a new family of Permian gymnosperms from China with an unusual combination of features". Proceedings of the Royal Society B: Biological Sciences. 277 (1679): 301–309. doi:10.1098/rspb.2009.0913. ISSN 0962-8452. PMC 2842674. PMID 19656793.
Barnard, P. D. W.; Long, A. G. (1973). "4.—On the Structure of a Petrified Stem and some Associated Seeds from the Lower Carboniferous Rocks of East Lothian, Scotland". Transactions of the Royal Society of Edinburgh. 69 (4): 91–108. doi:10.1017/S008045680001499X. ISSN 0080-4568. S2CID 129792299.
Barnard, P. D. W.; Long, A. G. (1975). "10.—Triradioxylon—a New Genus of Lower Carboniferous Petrified Stems and Petioles together with a Review of the Classification of Early Pterophytina". Transactions of the Royal Society of Edinburgh. 69 (10): 231–249. doi:10.1017/S0080456800015179. ISSN 0080-4568.

Pteridosperm (English Wikipedia)

adsabs.harvard.edu (Global: 14th place; English: 9th place)

ui.adsabs.harvard.edu

archive.org (Global: 6th place; English: 6th place)

cambridge.org (Global: 209th place; English: 151st place)

doi.org (Global: 2nd place; English: 2nd place)

jstor.org (Global: 23rd place; English: 15th place)

kb.se (Global: 276th place; English: 804th place)