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Relevant bibliographies by topics / Acanthostemma

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Academic literature on the topic 'Acanthostemma'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Acanthostemma"

1

Cabactulan, Derek D., Michele Rodda, and Reynold Pimentel. "Hoya of the Philippines part I. Hoya migueldavidii (Apocynaceae, Asclepiadoideae), a new species from Northern Mindanao, Philippines." PhytoKeys 80 (June 5, 2017): 105–12. https://doi.org/10.3897/phytokeys.80.12872.

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A new species of Hoya R.Br. from Mindanao (Philippines), Hoya migueldavidii Cabactulan, Rodda & Pimentel, is described and illustrated. It is a member of Hoya section Acanthostemma (Blume) Kloppenb. that is particularly speciose in the Philippines. It is compared with the similar Hoya loheri Kloppenb, also endemic of the Philippines, from which it differs in indumentum of the vegetative parts (pubescent vs. glabrous), the shape of the corolla (almost spherical vs. partly flattened) and the type of gynostegium (not stipitate vs. stipitate)

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Rodda, Michele, and Juhonewe Nadhanielle Simonsson. "Hoya isabelchanae Rodda & Simonsson, a new, showy species of Hoya R.Br. (Apocynaceae, Asclepiadoideae) with pomegranate red flowers from Sulawesi, Indonesia." PhytoKeys 68 (August 2, 2016): 45–50. https://doi.org/10.3897/phytokeys.68.8803.

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A new species of Hoya R.Br. from Sulawesi (Indonesia), H. isabelchanae Rodda & Simonsson, is described and illustrated. It is one of the largest flowered species in Hoya section Acanthostemma (Blume) Kloppenb. Its flowers are of comparable size to those of Hoya benchaii Gavrus et al., Hoya kloppenburgii T.Green, Hoya rundumensis (T.Green) Rodda & Simonsson and Hoya sigillatis T.Green ssp. sigillatis, all from Borneo. Among Sulawesi species it is compared with the vegetatively similar Hoya brevialata Kleijn & van Donkelaar and Hoya pallilimba Kleijn & van Donkelaar.

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Rodda, Michele. "Two new species of Hoya R.Br. (Apocynaceae, Asclepiadoideae) from Borneo." PhytoKeys 53 (July 21, 2015): 83–93. https://doi.org/10.3897/phytokeys.53.5079.

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Two new Hoya R.Br. species from Borneo are described and illustrated. The first, Hoya ruthiae Rodda was collected in Sabah on Bukit Baturong, a limestone outcrop. It is one of the few species in the genus to have clear exudate. It is compared with the morphologically related Hoya uncinata Teijsm. and Binn. The other, Hoya bakoensis Rodda, was collected in the kerangas forests of Bako National Park. It belongs to Hoya section Acanthostemma (Bl.) Kloppenb., a section with numerous members in the Philippines but under-represented in Borneo.

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Neenan, James M., Marcello Ruta, Jennifer A. Clack, and Emily J. Rayfield. "Feeding biomechanics in Acanthostega and across the fish–tetrapod transition." Proceedings of the Royal Society B: Biological Sciences 281, no. 1781 (2014): 20132689. http://dx.doi.org/10.1098/rspb.2013.2689.

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Acanthostega is one of the earliest and most primitive limbed vertebrates. Its numerous fish-like features indicate a primarily aquatic lifestyle, yet cranial suture morphology suggests that its skull is more similar to those of terrestrial taxa. Here, we apply geometric morphometrics and two-dimensional finite-element analysis to the lower jaws of Acanthostega and 22 other tetrapodomorph taxa in order to quantify morphological and functional changes across the fish–tetrapod transition. The jaw of Acanthostega is similar to that of certain tetrapodomorph fish and transitional Devonian taxa bot

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Clack, J. A. "The dermal skull roof of Acanthostega gunnari, an early tetrapod from the Late Devonian." Transactions of the Royal Society of Edinburgh: Earth Sciences 93, no. 1 (2002): 17–33. http://dx.doi.org/10.1017/s0263593300000304.

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ABSTRACTThe dermal skull roof of Acanthostega gunnari Jarvik is described in detail, giving new information on the anatomy, and new reconstructions of the skull in dorsal, lateral and occipital views, as well as sections through the skull at two points. The types of suture are compared with those of temnospondyls and discosauriscids, comparable animals in terms of habit and skull shape. The skull-bones of Acanthostega are much more closely integrated with each other than those of the two later groups. However, regions of relatively less firmly and more firmly sutured regions are comparable in

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Bidgood, Sally, and R. K. Brummitt. "Acanthostelma, a New Genus of Acanthaceae from Somalia." Kew Bulletin 40, no. 4 (1985): 855. http://dx.doi.org/10.2307/4109870.

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Ahlberg, Per Erik, and Jennifer A. Clack. "Lower jaws, lower tetrapods–a review based on the Devonian genus Acanthostega." Transactions of the Royal Society of Edinburgh: Earth Sciences 89, no. 1 (1998): 11–46. http://dx.doi.org/10.1017/s0263593300002340.

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AbstractThe lower jaw of the Devonian tetrapod Acanthostega is described for the first time. Redescriptions are provided for the lower jaws of the elpistostegid Panderichthys, the Devonian tetrapods Elginerpeton, Obruchevichthys, Metaxygnathus, Ventastega and Ichthyostega, and the Carboniferous tetrapods Crassigyrinus, Megalocephalus and Gephyrostegus. The character distri- butions thus revealed differ considerably from previous accounts, particularly in the wide distribution of certain primitive characters. Meckelian ossification in the middle part of the jaw is widespread among Devonian tetr

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8

Ahlberg, Per Erik, Ervins Luksevics, and Oleg Lebedev. "The First Tetrapod Finds from the Devonian (Upper Famennian) of Latvia." Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences 343, no. 1305 (1994): 303–28. http://dx.doi.org/10.1098/rstb.1994.0027.

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Ventastega curonica, from the Upper Famennian Ketleri Formation, is the first tetrapod find from the Upper Devonian of Latvia, and only the fourth adequately represented Devonian tetrapod genus to be described. The taxon is represented by disarticulated cranial and postcranial elements from two localities, Ketleri on the Venta River and Pavari on the Ciecere River. A second tetrapod, represented by a single mandibular fragment, appears to be present at Ketleri. The lower jaw of Ventastega is strikingly primitive in retaining fangs on the coronoid series, but shares many characters with those o

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9

Clack, J. A. "A revised reconstruction of the dermal skull roof of Acanthostega gunnari, an early tetrapod from the Late Devonian." Transactions of the Royal Society of Edinburgh: Earth Sciences 93, no. 2 (2002): 163–65. http://dx.doi.org/10.1017/s0263593300000390.

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ABSTRACTA revised reconstruction of the dermal skull roof of Acanthostega gunnari from the Upper Devonian of East Greenland is provided, incorporating modifications consequent upon further study of the specimens and in the light of new information from the Upper Devonian genus Ventastega from Latvia. The new reconstruction features a midline gap between the frontal and nasal bones and median rostrals. A revised profile for the skull and a rendition of the dermal ornament is also provided.

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10

Sanchez, Sophie, Paul Tafforeau, Jennifer A. Clack, and Per E. Ahlberg. "Life history of the stem tetrapod Acanthostega revealed by synchrotron microtomography." Nature 537, no. 7620 (2016): 408–11. http://dx.doi.org/10.1038/nature19354.

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More sources

Book chapters on the topic "Acanthostemma"

1

Clack, J. A. "The Stapes of Acanthostega gunnari and the Role of the Stapes in Early Tetrapods." In The Evolutionary Biology of Hearing. Springer New York, 1992. http://dx.doi.org/10.1007/978-1-4612-2784-7_24.

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Kemp, T. S. "Evolution of the mammal-like reptiles." In The Origin and Evolution of Mammals. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780198507604.003.0006.

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Mammals, along with the biologically remarkably similar birds, are the vertebrates that are most completely adapted to the physiological rigours of the terrestrial environment. Whilst all the terrestrial dwelling tetrapods can operate in the absence of the buoyancy effect of water, and can use the gaseous oxygen available, mammals have in addition evolved a highly sophisticated ability to regulate precisely the internal temperature and chemical composition of their bodies in the face of the extremes of fluctuating temperature and the dehydrating conditions of dry land. From this perspective, t

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