A new fossil record of Lindsaeaceae (Polypodiales) from the mid-Cretaceous amber of Myanmar

Li, Chunxiang; Moran, Robbin C.; Ma, Jinshuang; Wang, Bo; Hao, Jianhua

doi:10.1016/j.cretres.2018.12.010

Cited by 12 publications

(8 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These fossils were used to constrain the crown of Polypodiales by Pryer et al (2004) and Schneider et al (2004), or to constrain the stem of Polypodiales by Qi et al (2018). Recent studies on the Myanmar amber fossils (late Albian-earliest Cenomanian, Cretaceous, c. 100.5 Ma) have recorded remarkable fossils-at least one representative of four of six suborders of Polypodiales: Aspleniineae (Thelypteridaceae; Regalado et al, 2018), Dennstaedtiineae (Dennstaedtiaceae; Schneider et al, 2016), Lindsaeineae (Cystodiaceae, Regalado et al, 2017a;Lindsaeaceae, Regalado et al, 2017b;Li et al, 2020) and Pteridineae (Pteridaceae; Regalado et al, 2019). All of the fossils mentioned above that the diversification of polypod ferns had already begun by the end of the Early Cretaceous.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous diversification of Polypodiales and angiosperms in the Mesozoic

Zhang

et al. 2021

Cladistics

View full text Add to dashboard Cite

Comprising about 82% of the extant fern species diversity, Polypodiales are generally believed to have diversified in the Late Cretaceous. We estimated the divergence times of Polypodiales using both penalized likelihood and Bayesian methods, based on a dataset consisting of 208 plastomes representing all 28 families and 14 fossil constraints reflecting current interpretations of fossil record. Our plastome phylogeny recovered the same six major lineages as a recent nuclear phylogeny, but the position of Dennstaedtiineae was different. The present phylogeny showed high resolution of relationships among the families of Polypodiales, especially among those forming the Aspleniineae. The divergence time estimates supported the most recent common ancestor of Polypodiales and its closest relative dating back to the Triassic, establishment of the major lineages in the Jurassic, and a likely accelerated radiation during the late Jurassic and the Early Cretaceous. The estimated divergence patterns of Polypodiales and angiosperms converge to a scenario in which their main lineages were established simultaneously shortly before the onset of the Cretaceous Terrestrial Revolution, and further suggest a pre-Cretaceous hidden history for both lineages. The pattern of simultaneous diversifications shown here elucidate an important gap in our understanding of the Terrestrial Revolution that shaped today's ecosystems.

show abstract

Section: Introductionmentioning

confidence: 99%

Simultaneous diversification of Polypodiales and angiosperms in the Mesozoic

Zhang

et al. 2021

Cladistics

View full text Add to dashboard Cite

show abstract

“…Thus, the two intergeneric royal fern hybrids have been formed between lineages separated since the late Mesozoic and they thus exceed × Cystocarpium (Rothfels et al, 2015) as the oldest separation of lineages still able to hybridize. In this aspect, the separation between the parental genera involved in the nothogenus × Lindsaeosoria (Lehtonen, 2018) also dates back to the Cretaceous, according to the fossil record (Schneider & Kenrick, 2001; Regaldo et al, 2017; Li et al, 2020). Among the 10 nothogenera recognized as necessary within the PPG I classification (Table 1), five involved parental genera that may have separated in the Cretaceous based on the fossil record and diversification time estimates (Schuettpelz & Pryer, 2009; Testo & Sundue, 2016).…”

Section: Discussionmentioning

confidence: 99%

Evaluating the status of fern and lycophyte nothotaxa in the context of the Pteridophyte Phylogeny Group classification (PPG I)

Liu

Schuettpelz

Schneider

2020

J of Sytematics Evolution

View full text Add to dashboard Cite

Hybridization has long been recognized as common in ferns, but the products of this arguably evolutionary important process have often been ignored in classifications. For example, the recently published Pteridophyte Phylogeny Group classification (PPG I) covered all hierarchical ranks from class to genus but did not include intergeneric hybrids (nothogenera). Here, we provide for the first time a comprehensive evaluation of previously proposed nothogenera in the context of a current phylogeny-based pteridophyte classification (i.e., PPG I). We find that several nothogenera nested in the orders Osmundales and Polypodiales are supported in the framework of PPG I, but others are superfluous. Five new nothogenera are introduced here for the first time. We also explore the distribution of nothospecies across the pteridophyte phylogeny for the first time. We are unable to reject the hypothesis that species richness and nothospecies diversity are correlated, despite the finding that some temperate lineages contribute more nothospecies than expected whereas several tropical lineages lack them. This pattern could be the consequence of either fundamental differences in modes of speciation in temperate and tropical zones or unequal efforts to record nothospecies. In general, we emphasize the need to take nothogenera into account when proposing generic classifications, but the information provided by the existence of such hybrids needs to be carefully evaluated. Our results underscore the need to report and study hybrids in ferns and lycophytes, especially in biodiversity rich areas.

show abstract

“…five tonnes per year) is excavated from these deposits. Eight fossils of different families within the Polypodiales and many sporangia and spores have been found in Burmese amber (Poinar & Buckley, 2008;Schneider et al, 2016;Regalado et al, 2017aRegalado et al, , 2017bRegalado et al, , 2018Regalado et al, , 2019Li et al, 2018Li et al, , 2019 and several taxa await description. Four fern species were described from Dominican amber, so far (Gómez, 1982;Lóriga et al, 2014;Schneider et al, 2015;Sundue & Poinar, 2016).…”

Section: Fern Diversity In Baltic Ambermentioning

confidence: 99%

How diverse were ferns in the Baltic amber forest?

Sadowski

Seyfullah

Regalado³

et al. 2019

J of Sytematics Evolution

View full text Add to dashboard Cite

Diverse temperate forest types and a high atmospheric humidity have recently been suggested for the Eocene source area of Baltic amber. However, ferns are astonishingly rare as inclusions in this amber, which is in contrast to other seed‐free land plants, fungi, and lichens. Moreover, the identities of some of the few described putative fern taxa are dubious, and some fossils were even assigned to the Paleozoic seed fern genera Alethopteris, Pecopteris and to the form genus Sphenopteris containing Paleozoic and Mesozoic fern‐like leaf fossils. Here, we review previously described fern inclusions from Baltic amber and identify further fern‐like leaf inclusions as belonging to the extant angiosperm genus Comptonia (sweet ferns, Myricaceae). We conclude that only one taxon, Matonia striata (Matoniaceae), can with confidence be identified as a Polypodiopsida representative. Although “Pecopteris” humboldtiana is so far only known as sterile foliage, its leaf morphology strongly suggests that also this taxon belongs to the Polypodiopsida rather than to any other tracheophyte lineage. We propose accommodating “Pecopteris” humboldtiana in the new genus Berendtiopteris. “Alethopteris” serrata and “Sphenopteris” phyllocladoides are not to be regarded as evidence of ferns from Baltic amber. Reinvestigation of the holotypes of these two taxa did not reveal to which tracheophyte lineages these fossils belong. We suggest that the scarcity of fern remains from Baltic amber may reflect both a relatively low fern diversity in the source area of the fossil resin, and an absence or rarity of epiphytic and climbing ferns as observed in modern temperate forest ecosystems.

show abstract

A new fossil record of Lindsaeaceae (Polypodiales) from the mid-Cretaceous amber of Myanmar

Cited by 12 publications

References 15 publications

Simultaneous diversification of Polypodiales and angiosperms in the Mesozoic

Simultaneous diversification of Polypodiales and angiosperms in the Mesozoic

Evaluating the status of fern and lycophyte nothotaxa in the context of the Pteridophyte Phylogeny Group classification (PPG I)

How diverse were ferns in the Baltic amber forest?

Contact Info

Product

Resources

About