Tantalian niobian titanite from the Irgon claim, southeastern Manitoba
Tantalian niobian titanite occurs in the IRA pegmatites on the Irgon claim, in the Winnipeg River pegmatite field of southeastern Manitoba. This titanite is a rare early component of a secondary…
The Woccon Language of North Carolina: Its Genetic Affiliations and Historical Significance
- R. T. Carter
- LinguisticsInternational Journal of American Linguistics
- 1 July 1980
1 An earlier version of this article was presented in the colloquium series of the Department of Anthropology, University of Manitoba, in the spring of 1977. I would like to thank the students and…
Postnatal ontogeny of the cochlea and flight ability in Jamaican fruit bats (Phyllostomidae) with implications for the evolution of echolocation
The data show that the morphological prerequisite for sonar sensitivity of the cochlea significantly precedes the onset of flight in young bats and, in fact, development of this prerequisite is complete before parturition, which corroborate and support the hypothesis that adaptations forSonar and echolocation evolved before flight in mammals.
Megachiropteran bats profoundly unique from microchiropterans in climbing and walking locomotion: Evolutionary implications
It is contended that nonflight locomotion mechanics give a deep evolutionary view into the ancestral locomotor platform on which flight was built in each of these groups.
Naphthylamidases of Sarcina lutea.
The naphthylamidase isozyme complement of Sarcina lutea was studied. Gel filtration yielded two fractions, Sephadex I and Sephadex II. Sephadex I contained one enzyme generally resembling leucineam...
Ontogeny of vocalization in Jamaican fruit bats with implications for the evolution of echolocation
The data support the hypothesis that communication and sonar calls are discrete and independently derived at birth and thus have different evolutionary pathways as well.
Integrating Ontogeny of Echolocation and Locomotion Gives Unique Insights into the Origin of Bats
It is found clear evidence that the ability to hear high frequency echolocation-like sounds preceded the able to produce it and that a simple eCholocation system was likely inherited from a shrew-like ancestor and was not an in situ evolutionary innovation of bats.
Ontogeny of the Larynx and Flight Ability in Jamaican Fruit Bats (Phyllostomidae) With Considerations for the Evolution of Echolocation
The data suggest the larynx of echolocating bats becomes stronger and sturdier in tandem with flight development, indicating possible developmental integration between flight and Echolocation.
Reinforcement of the larynx and trachea in echolocating and non‐echolocating bats
- R. T. Carter
- BiologyJournal of Anatomy
- 21 April 2020
All laryngeal echolocators exhibited mineralized or ossified lateral expansions of the cricoid for articulation with the inferior horn of the thyroid, and these were most prominent in the high‐duty cycle high‐intensity rhinolophids and hipposiderid species, perhaps suggesting relatively recent evolution of high-duty cycle eCholocation in P. parnellii.