trigonia | Trigonia

Keyword	CPC	PCC	Volume	Score	Length of keyword
trigonia	1.56	0.8	8748	70	8

Keyword	CPC	PCC	Volume	Score
trigonia	1.05	0.7	5359	64

Search Results related to trigonia on Search Engine

Trigonia - Wikipedia
wikipedia.org

https://en.wikipedia.org/wiki/Trigonia

WEBTrigonia is an extinct genus of saltwater clams, fossil marine bivalve mollusk in the family Trigoniidae. The fossil range of the genus spans the Paleozoic , Mesozoic and Paleocene of the Cenozoic , from 298 to 56 Ma.

DA: 2 PA: 4 MOZ Rank: 92

Trigonia | bivalve | Britannica
britannica.com

https://www.britannica.com/animal/Trigonia

WEBTrigonia, genus of mollusks that first appeared during the Jurassic period, which began about 208 million years ago. The still-extant Trigonia has a triangular shell with distinctive concentric ridges on its surface as well as nodular outgrowths. A different ornamental pattern is present in the posterior parts of the shell.

DA: 40 PA: 51 MOZ Rank: 19

Trigoniidae - Wikipedia
wikipedia.org

https://en.wikipedia.org/wiki/Trigoniidae

WEBTrigoniidae is a taxonomic family of saltwater clams, marine bivalve mollusks in the superfamily Trigonioidea. There is only one living genus, Neotrigonia, but in the geological past this family was well represented, widespread and common.

DA: 90 PA: 68 MOZ Rank: 2

Trigonia and the Origin of Species - JSTOR
jstor.org

https://www.jstor.org/stable/4330486

WEBTrigonia and the Origin of Species. STEPHEN JAY GOULD. Museum of Comparative Zoology, Harvard University, Cambridge, Massachusetts. INTRODUCTION. Neotrigonia, a marine clam found only in Australian waters, shares with the coelacanth and Neopilina a special place in the history of zoology.

DA: 9 PA: 25 MOZ Rank: 22

TRIGONIACEAE - Smithsonian National Museum of Natural …
si.edu

https://naturalhistory.si.edu/sites/default/files/media/file/trigoniaceae_0.pdf

WEBStem cross section of Trigonia rugosa a nearly square-shaped medulla and 4 wavy areas in the periphery of the xylem where phloem wedges will later develop. B. Stem cross section of Trigonia laevis with square-shaped medulla and 4 phloem wedges with continuous cambium. C. Flowering branch of Trigonia spruceana. D.

DA: 98 PA: 51 MOZ Rank: 66

Trigonia (plant) - Wikipedia
wikipedia.org

https://en.wikipedia.org/wiki/Trigonia_(plant)

WEBTrigonia is a genus of flowering plants in the family Trigoniaceae. It includes 29 species native to the tropical Americas, ranging from southwestern Mexico to northeastern Argentina. [1] Species. 29 species are accepted. [1] Trigonia bahiensis E.F.Guim., Miguel & Fontella. Trigonia boliviana Warm. Trigonia bracteata Lleras.

DA: 88 PA: 100 MOZ Rank: 83

Cretaceous Atlas of Ancient Life | Trigoniidae
cretaceousatlas.org

https://www.cretaceousatlas.org/families/trigoniidae/

WEBOverview. Trigoniidae Lamarck, 1819. Common Name: Extant/Extinct. Key morphological features: Shells tend to be large with great variation in shape and ornamentation. External ribbing is very dramatic. SIZE: Paleoecology: MOBILITY: Mobile (burrow) FEEDING MODE: Suspension Feeder. HABITAT: Infaunal. Sources: Cox, L. R. et al. 1969.

DA: 11 PA: 75 MOZ Rank: 30

Trigonia - Wikiwand
wikiwand.com

https://www.wikiwand.com/en/Trigonia

WEBTrigonia is an extinct genus of saltwater clams, fossil marine bivalve mollusk in the family Trigoniidae. The fossil range of the genus spans the Paleozoic, Mesozoic and Paleocene of the Cenozoic, from 298 to 56 Ma.

DA: 83 PA: 51 MOZ Rank: 77

Neotrigonia, the Sole Surviving Genus of the Trigoniidae …
springer.com

https://link.springer.com/content/pdf/10.1007/978-1-4613-8271-3_30.pdf

WEB29. Neotrigonia, the Sole Surviving Genus of the Trigoniidae (Bivalvia, Mollusca) Steven M. Stanley. Department of Earth and Planetary Sciences, The Johns Hopkins University, Baltimore, MD 21218. Introduction. The bivalve mollusk genus Neotrigonia holds. special place in the history of evolutionary biology.

DA: 91 PA: 68 MOZ Rank: 8

Trigonia and the origin of species | Journal of the History of Biology
springer.com

https://link.springer.com/article/10.1007/BF00149775

WEBKeywords. Natural Selection. Single Fact. Morphological Difference. Controversial Issue. Modern Form. While the Trigonia story is a microcosmic representation of nineteenth-century evolutionary debates, it also serves as a model for assessing the impact of.

DA: 52 PA: 31 MOZ Rank: 39