Project 632: Klymiuk, A. A., and R. A. Stockey. 2012. A Lower Cretaceous (Valanginian) seed cone provides the earliest fossil record for Picea (Pinaceae). American Journal of Botany. 99 (6):1069-1082.
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Specimen: Picea burtonii sp. nov. (unvouchered)

Abstract

• Premise of study: Sequence analyses for Pinaceae have suggested that extant genera diverged in the late Mesozoic. While the fossil record indicates that Pinaceae was highly diverse during the Cretaceous, there are few records of living genera. This description of an anatomically preserved seed cone extends the fossil record for Picea A. Dietrich (Pinaceae) by ∼75 Ma.

• Methods: The specimen was collected from the Apple Bay locality of Vancouver Island (Lower Cretaceous, Valanginian) and is described from anatomical sections prepared using cellulose acetate peels. Cladistic analyses of fossil and extant pinaceous seed cones employed parsimony ratchet searches of an anatomical and morphological matrix.

• Key results: This new seed cone has a combination of characters shared only with the genus Picea A. Dietr. and is thus described as Picea burtonii Klymiuk et Stockey sp. nov. Bisaccate pollen attributable to Picea is found in the micropyles of several ovules, corroborating the designation of this cone as an early spruce. Cladistic analyses place P. burtonii with extant Picea and an Oligocene representative of the genus. Furthermore, our analyses indicate that Picea is sister to Cathaya Chun et Kuang, and P. burtonii helps to establish a minimum date for this node in hypotheses of conifer phylogeny.

• Conclusions: As an early member of the extant genus Picea, this seed cone extends the fossil record of Picea to the Valanginian Stage of the Early Cretaceous, ca. 136 Ma, thereby resolving a ghost lineage predicted by molecular divergence analyses, and offers new insight into the evolution of Pinaceae.



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This project containsMatrices
  • 1 Media
  • 2 Matrices
  • 110 Taxa
  • 85 Characters
Total size of project's media files: 2 MB
Total scored cells: 3847
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 88
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 210
Total character states with associated media: 0
Total character states with media with labels:0
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MorphoBank Project 632


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Ashley Klymiuk
Project Administrator
Last logged in 06/11/12
11001088055003847
(3780, 0, 67)
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Ruth Stockey
Full membership
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Taxonomic Overview for Matrix 'M1448' (42 Taxa)

taxon unscored
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[1] New taxon 1
Last Modified in 11/23/11
340000003
[2] Sciadopit
Last Modified in 11/23/11
133000003
[3] Ced deo
Last Modified in 11/23/11
232000003
[4] Psdlar am
Last Modified in 11/23/11
331000003
[5] Larix dec
Last Modified in 11/23/11
133000003
[6] Cathaya argyrophylla
Last Modified in 03/02/12
430000003
[7] Abiesfirm
Last Modified in 11/23/11
529000003
[8] Ketel
Last Modified in 11/23/11
133000003
[9] Pn thunbe
Last Modified in 11/23/11
232000003
[10] Pstsuga m
Last Modified in 11/23/11
133000003
[11] Tsuga mer
Last Modified in 11/23/11
133000003
[12] Apple
Last Modified in 11/23/11
133000003
[13] Pn arnold
Last Modified in 11/23/11
133000003
[14] Pc sitch
Last Modified in 11/23/11
133000003
[15] Pc abies
Last Modified in 03/02/12
133000003
[16] Pc asper
Last Modified in 11/23/11
133000003
[17] Pc crass
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1024000003
[18] Pc korai
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1024000003
[19] Pc koya
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1024000003
[20] Pc meyeri
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1024000003
[21] Pc obova
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1024000003
[22] Pc gleh
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1024000003
[23] Pc jezoe
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1024000003
[24] Pc engel
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133000003
[25] Pc glau
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133000003
[26] Pc alcoq
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1024000003
[27] Pc brach
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1024000003
[28] Pc maxim
Last Modified in 11/23/11
1024000003
[29] Pc purp
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1024000003
[30] Pc orient
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1024000003
[31] Pc schre
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1024000003
[32] Pc smith
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1024000003
[33] Pc brew
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133000003
[34] Pc chihua
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133000003
[35] Pc wils
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133000003
[36] Pc lik
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232000003
[37] Pc mex
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133000003
[38] Pc torano
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133000003
[39] Pc punge
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133000003
[40] Pc maria
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133000003
[41] Pc omo
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[42] Pc ruben
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Taxonomic Overview for Matrix 'M1574' (52 Taxa)

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[1] Sciadopitys verticillata
Last Modified in 03/02/12
051003003
[2] Pc abies
Last Modified in 03/02/12
059002003
[3] Cathaya argyrophylla
Last Modified in 03/02/12
845001003
[4] cedrus
Last Modified in 03/02/12
055002003
[5] Cryptomeria japonica
Last Modified in 03/02/12
4390011003
[6] keteleeria
Last Modified in 03/02/12
254001003
[7] larix
Last Modified in 03/02/12
061001003
[8] Obirastrobus kokubunii
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252001003
[9] Obirastrobus nihongii
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351001003
[10] Pararaucaria patagonica
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5370013003
[11] picea
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061001003
[12] Pinus belgica
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351000003
[13] Pinus nelsonii
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153000003
[14] Pinus ponderosa
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450000003
[15] Pityostrobus andraei
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746001003
[16] Pityostrobus argonnensis
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547002003
[17] Pityostrobus beardii
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747000003
[18] Pityostrobus bernissartensis
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250002003
[19] Pityostrobus californiensis
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350001003
[20] Pityostrobus cliffwoodensis
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945000003
[21] Pityostrobus corneti
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448002003
[22] Pityostrobus hallii
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548001003
[23] Pityostrobus hautrageanus
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746001003
[24] Pityostrobus hokodzensis
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449001003
[25] Pityostrobus hueberi
Last Modified in 03/02/12
151002003
[26] Pityostrobus jacksonii
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1044000003
[27] Pityostrobus kayeii
Last Modified in 03/02/12
449001003
[28] Pityostrobus leckenbyi
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548001003
[29] Pityostrobus lynnii
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748000003
[30] Pityostrobus macrocephalus
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1142001003
[31] Pityostrobus makahensis
Last Modified in 03/02/12
351001003
[32] Pityostrobus matsubarae
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350001003
[33] Pityostrobus mcmurrayensis
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944001003
[34] Pityostrobus milleri
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845001003
[35] Pityostrobus oblongus
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449001003
[36] Pityostrobus palmeri
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352000003
[37] Pityostrobus pubescens
Last Modified in 03/02/12
548001003
[38] Pityostrobus ramentosa
Last Modified in 03/02/12
746001003
[39] Pityostrobus shastaensis
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1242000003
[40] Pityostrobus villerotensis
Last Modified in 03/02/12
350001003
[41] Pityostrobus virginiana
Last Modified in 03/02/12
449001003
[42] Pseudoaraucaria arnoldii
Last Modified in 03/02/12
253000003
[43] Pseudoaraucaria benstedi
Last Modified in 03/02/12
1836000003
[44] Pseudoaraucaria gibbosa
Last Modified in 03/02/12
252000003
[45] Pseudoaraucaria heeri
Last Modified in 03/02/12
252000003
[46] Pseudoaraucaria loppineti
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549000003
[47] Pseudoaraucaria major
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450000003
[48] Pseudolarix amabilis
Last Modified in 03/02/12
251001003
[49] pseudotsuga
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056001003
[50] tsuga
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059001003
[51] Picea diettertiana
Last Modified in 03/02/12
152001003
[52] Picea burtonii sp. nov.
Last Modified in 03/02/12
152001003


Project views

type number of views Individual items viewed (where applicable)
Total project views2486
Project overview358
Matrix views210Matrix landing page (182 views); Seed Cone Morphology (Picea) (14 views); Fossil and Extant Pinaceous Seed Cones (14 views);
Media views626Media search (518 views); M96978 (108 views);
Specimen list301
Taxon list851
Bibliography140




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type number of downloads Individual items downloaded (where applicable)
Total downloads from project41
Media downloads19M96978 (19 downloads);
Matrix downloads2Fossil and Extant Pinaceous Seed Cones (1 download); Seed Cone Morphology (Picea) (1 download);
Project downloads20