A new conifer from the Upper Triassic of southern Poland linking the advanced voltzialean type of ovuliferous scale with Brachyphyllum-Pagiophyllum-like leaves

2017
journal article
article
22
dc.abstract.enThe Triassic is an exceptionally interesting period from the point of view of conifer evolution. The oldest representatives of some modern families appear in the fossil record in the Upper Triassic and all recent conifer families probably originated during this time. The stageswhereby the primitiveVoltziales transformed into the evolutionarily advanced families of modern conifers in the Triassic are yet to be fully documented. A newly discovered Upper Triassic (Norian) locality in Patoka (SW Poland, Upper Silesia) with a unique fossil record offers us a rare opportunity to fill this gap. In this paper, we describe the very well preserved remains of a new conifer from this locality.We have been able to reconstruct thewhole plant and propose a new taxon, Patokaea silesiaca gen. et sp. nov., on the basis of organic attachment and similar cuticular details on leaves, ovuliferous cones, seed scale-bract complexes, ovules and mature seeds as well as polliniferous cones containing pollen grains of the Enzonalasporites type in situ. This plant combines shoots bearing Brachyphyllum-Pagiophyllum-type leaves with a new type of seed scale-bract complex clearly derived from evolutionary advanced Voltziales and polliniferous cones somewhat similar to the Cheirolepidiaceae (Classostrobus) type. Based on this distinctive and hitherto unique combination of features, a new conifer family - Patokaeaceae - has been proposed. The ovuliferous cones of this conifer are lax and borne singly at the end of leafy twigs. Ovule-bearing scales are stalked and trilobate with two lateral oval lobes, each bearing one ovule, and one sterile reduced lobe between them, all in one plane. The bract is small and leaf-like. Polliniferous cones are simple with helically arranged microsporophylls. Five to seven pollen sacs are arranged around the microsporophyll stalk. Polliniferous cones are borne singly at the end of leafy twigs. This is also the first evidence of a relationship between Enzonalasporites pollen and the parent plant. The pollen occurs in the polliniferous cones, in the micropyle inside the ovule and in the micropylar region inside the seed of this new conifer. This plant expands our view of voltzialean conifer diversity at the roots of modern conifer families.pl
dc.affiliationWydział Biologii i Nauk o Ziemi : Instytut Botanikipl
dc.contributor.authorPacyna, Grzegorz - 200155 pl
dc.contributor.authorBarbacka, Mariapl
dc.contributor.authorZdebska, Danuta - 132887 pl
dc.contributor.authorZiaja, Jadwigapl
dc.contributor.authorFijałkowska-Mader, Annapl
dc.contributor.authorBóka, Károlypl
dc.contributor.authorSulej, Tomaszpl
dc.date.accessioned2017-12-06T09:33:12Z
dc.date.available2017-12-06T09:33:12Z
dc.date.issued2017pl
dc.description.physical28-54pl
dc.description.volume245pl
dc.identifier.doi10.1016/j.revpalbo.2017.05.015pl
dc.identifier.eissn1879-0615pl
dc.identifier.issn0034-6667pl
dc.identifier.urihttps://ruj.uj.edu.pl/xmlui/handle/item/47231
dc.languageengpl
dc.language.containerengpl
dc.rightsDodaję tylko opis bibliograficzny*
dc.rights.licenceBez licencji otwartego dostępu
dc.rights.uri*
dc.source.integratorfalse
dc.subject.enTriassicpl
dc.subject.enVoltzialespl
dc.subject.enBrachyphyllumpl
dc.subject.enEnzonalasporitespl
dc.subject.enPolandpl
dc.subtypeArticlepl
dc.titleA new conifer from the Upper Triassic of southern Poland linking the advanced voltzialean type of ovuliferous scale with Brachyphyllum-Pagiophyllum-like leavespl
dc.title.journalReview of Palaeobotany and Palynologypl
dc.typeJournalArticlepl
dspace.entity.typePublication
dc.abstract.enpl
The Triassic is an exceptionally interesting period from the point of view of conifer evolution. The oldest representatives of some modern families appear in the fossil record in the Upper Triassic and all recent conifer families probably originated during this time. The stageswhereby the primitiveVoltziales transformed into the evolutionarily advanced families of modern conifers in the Triassic are yet to be fully documented. A newly discovered Upper Triassic (Norian) locality in Patoka (SW Poland, Upper Silesia) with a unique fossil record offers us a rare opportunity to fill this gap. In this paper, we describe the very well preserved remains of a new conifer from this locality.We have been able to reconstruct thewhole plant and propose a new taxon, Patokaea silesiaca gen. et sp. nov., on the basis of organic attachment and similar cuticular details on leaves, ovuliferous cones, seed scale-bract complexes, ovules and mature seeds as well as polliniferous cones containing pollen grains of the Enzonalasporites type in situ. This plant combines shoots bearing Brachyphyllum-Pagiophyllum-type leaves with a new type of seed scale-bract complex clearly derived from evolutionary advanced Voltziales and polliniferous cones somewhat similar to the Cheirolepidiaceae (Classostrobus) type. Based on this distinctive and hitherto unique combination of features, a new conifer family - Patokaeaceae - has been proposed. The ovuliferous cones of this conifer are lax and borne singly at the end of leafy twigs. Ovule-bearing scales are stalked and trilobate with two lateral oval lobes, each bearing one ovule, and one sterile reduced lobe between them, all in one plane. The bract is small and leaf-like. Polliniferous cones are simple with helically arranged microsporophylls. Five to seven pollen sacs are arranged around the microsporophyll stalk. Polliniferous cones are borne singly at the end of leafy twigs. This is also the first evidence of a relationship between Enzonalasporites pollen and the parent plant. The pollen occurs in the polliniferous cones, in the micropyle inside the ovule and in the micropylar region inside the seed of this new conifer. This plant expands our view of voltzialean conifer diversity at the roots of modern conifer families.
dc.affiliationpl
Wydział Biologii i Nauk o Ziemi : Instytut Botaniki
dc.contributor.authorpl
Pacyna, Grzegorz - 200155
dc.contributor.authorpl
Barbacka, Maria
dc.contributor.authorpl
Zdebska, Danuta - 132887
dc.contributor.authorpl
Ziaja, Jadwiga
dc.contributor.authorpl
Fijałkowska-Mader, Anna
dc.contributor.authorpl
Bóka, Károly
dc.contributor.authorpl
Sulej, Tomasz
dc.date.accessioned
2017-12-06T09:33:12Z
dc.date.available
2017-12-06T09:33:12Z
dc.date.issuedpl
2017
dc.description.physicalpl
28-54
dc.description.volumepl
245
dc.identifier.doipl
10.1016/j.revpalbo.2017.05.015
dc.identifier.eissnpl
1879-0615
dc.identifier.issnpl
0034-6667
dc.identifier.uri
https://ruj.uj.edu.pl/xmlui/handle/item/47231
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Dodaję tylko opis bibliograficzny
dc.rights.licence
Bez licencji otwartego dostępu
dc.rights.uri*
dc.source.integrator
false
dc.subject.enpl
Triassic
dc.subject.enpl
Voltziales
dc.subject.enpl
Brachyphyllum
dc.subject.enpl
Enzonalasporites
dc.subject.enpl
Poland
dc.subtypepl
Article
dc.titlepl
A new conifer from the Upper Triassic of southern Poland linking the advanced voltzialean type of ovuliferous scale with Brachyphyllum-Pagiophyllum-like leaves
dc.title.journalpl
Review of Palaeobotany and Palynology
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

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