Canrightiopsis intermedia E. M. FRIIS, G. W. GRIMM, M. M. MENDES et K. R. PEDERSEN, Catanthus 2015

Autor: Friis, Else Marie, Crane, Peter R., Pedersen, Kaj Raunsgaard, Mendes, Mário Miguel, Kvaček, Jiří
Rok vydání: 2022
Předmět:
ISSN: 0017-3134
DOI: 10.5281/zenodo.7535311
Popis: Canrightiopsis intermedia E.M.FRIIS, G.W.GRIMM, M.M.MENDES et K.R.PEDERSEN, 2015 Text-fig. 6d–f D e s c r i p t i o n a n d r e m a r k s. A single specimen from the Catefica mesofossil flora can be assigned with confidence to Canrightiopsis intermedia. It is a small, single-seeded berry with remains of a hypanthium and scars from three stamens on the probable abaxial side of the fruit (Text-fig. 6d). In this respect the specimen is closely similar to Canrightiopsis crassitesta (see above) as also is the seed in being orthotropous, pendent and endotestal with a pitted outer surface of the endotesta. However, the Catefica specimen of C. intermedia differs from C. crassitesta in its much thinner endotesta (Text-fig. 6e, f). Pollen grains have not been observed attached to the C. intermedia specimen from Catefica, but Clavatipollenites - type pollen grains were reported on specimens of C. intermedia from Famalicão (Friis et al. 2015a). A f f i n i t y a n d o t h e r o c c u r r e n c e s. Canrightiopsis is placed in the Chloranthaceae close to Ascarina, Sarcandra and Chloranthus clade (seeabove). Canrightiopsis intermedia is based on fruits and seeds from the Famalicão mesofossil flora where the species is very common (Friis et al. 2015a) and is also reported from the Buarcos and Vale de Água localities. The species is distinguished from C. crassitesta mainly by its much thinner endotesta.
Published as part of Friis, Else Marie, Crane, Peter R., Pedersen, Kaj Raunsgaard, Mendes, Mário Miguel & Kvaček, Jiří, 2022, The Early Cretaceous Mesofossil Flora Of Catefica, Portugal: Angiosperms, pp. 341-424 in Fossil Imprint 78 (2) on page 351, DOI: 10.37520/fi.2022.016, http://zenodo.org/record/7522801
{"references":["Friis, E. M., Grimm, G. W., Mendes, M. M., Pedersen, K. R. (2015 a): Canrightiopsis, a new Early Cretaceous fossil with Clavatipollenites - type pollen bridge the gap between extinct Canrightia and extant Chloranthaceae. - Grana, 54: 184 - 212. https: // doi. org / 10.1080 / 00173134.2015.1060750"]}
Databáze: OpenAIRE
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