assemblage+of+species
41Stone Age — the period in the history of humankind, preceding the Bronze Age and the Iron Age, and marked by the use of stone implements and weapons: subdivided into the Paleolithic, Mesolithic, and Neolithic periods. [1860 65] * * * First known period of… …
42passeriform — /pas euhr euh fawrm , peuh ser euh /, adj. of or pertaining to the order Passeriformes; passerine. [ < NL Passeriformes, equiv. to L passer sparrow + iformes IFORMES] * * * ▪ bird Introduction also called passerine or perching bird any… …
43Ecological extinction — Types and definitions of extinctions = Estes, Duggins, and Rathburn (1989) recognize three distinct types of extinction.Global extinction is defined as “the ubiquitous disappearance of a species. [Estes et al. The ecology of extinctions in kelp… …
44Owenetta — Temporal range: 260.5–250 Ma …
45Kelp forest — Kelp forests are underwater areas with a high density of kelp. They are recognized as one of the most productive and dynamic ecosystems on Earth.Mann, K.H. 1973. Seaweeds: their productivity and strategy for growth. Science 182: 975 981.] Kelp… …
46Ediacara biota — The Ediacara (IPAEng|ˌiːdɪˈækərə, formerly Vendian) biota are ancient lifeforms of the Ediacaran Period, which represent the earliest known complex multicellular organisms. They appeared soon after the Earth thawed from the Cryogenian period s… …
47Culture — For other uses, see Culture (disambiguation). Petroglyphs in modern day Gobustan, Azerbaijan, dating back to 10 000 BCE indicating a thriving culture …
48Nematode — Not to be confused with ringworm. Nematodes Unidentified roundworm from wet soil. The mouth is at the top left corner. Scientific classification …
49Maotianshan shales — In the Maotianshan shales is a lower Cambrian Konservat Lagerstätte named for Maotianshan Hill (zh stp|t=linktext|帽|天|山|s=linktext|帽|天|山|p=Màotiānshān) in Chengjiang County, Yunnan Province, China. More commonly, the extremely diverse assemblage… …
50Cultivar — Osteospermum Pink Whirls A cultivar selected for its intriguing and colourful flowers A cultivar[nb 1] is a plant or group of plants selected for desirable characteristics that can be maintained by propagation. Most cultivars have arisen in… …
