The holotype of Scipionyx is a rare example of a non-avian theropod hatchling; the most important other very young specimens are the chicks of Byronosaurus that however are much less complete. The young age is reflected by the proportions and the low degree of ossification and fusion of several skeletal elements. The most obvious youthful trait is the relatively large and short head.
Dal Sasso & Maganuco have tried to determine the absolute age of the hatchling. The fact that the fontanelle had not closed yet, poses an upper age limit of about five weeks. An even lower limit is indicated by the lack of any tooth replacement, which with Archosauria begins after a few weeks at the latest. The most exact age is given by the size of the yolk sac, which indicates a probable age of three days, with an upper limit of a week. Despite its very young age, the hatchling was able to walk, as is shown by the complete ossification of the ilium. However, this does not imply Scipionyx was precocial as even with altricial birds this pelvis bone fully ossifies within a few days after hatching.
Other articles related to "growth":
... Main articles Mould health issues, Mould growth, assessment, and remediation These biological chemicals can arise from a host of means, but there are two common classes (a) moisture induced growth of mold colonies and ... to dry out several days after the suspected water event, mould growth is suspected within wall cavities even if it is not immediately visible ... The primary hazard of mould growth, as it relates to indoor air quality, comes from the allergenic properties of the spore cell wall ...
... The concept of "Smart Growth" has emerged in the last 10–20 years driven by "new guard" urban planners, innovative architects, visionary developers, community ... Smart Growth is a term which has become codified in Federal and State regulations ... similar — being variations of the same concept with different emphasis, including Smart Growth New Urbanism New Community Design Sustainable Development ...
... – 2,189 1900 – 1,471 1950 – 3,855 2000 – 10,849 2010 – 11,841 Population growth in North Castle reflects the pattern of rural to suburban development typical of the post-World War II years ... in Westchester County and the nation, the town experienced a surge of population growth between 1940 and 1970 ... The overall rate of growth was moderate between 1970 and 1990 because of national economic conditions, including the rising cost of land, construction and interest ...
... Smart growth is an urban planning and transportation theory that concentrates growth in compact walkable urban centers to avoid sprawl ... The term 'smart growth' is particularly used in North America ... Smart growth values long-range, regional considerations of sustainability over a short-term focus ...
... has grown rapidly in recent years with a growth rate of 11.49 per cent in GDP for 2009–2010 ... success factors in achieving high growth rate are growth in agriculture and industrial production ...
Famous quotes containing the word growth:
“Those who have been immersed in the tragedy of massive death during wartime, and who have faced it squarely, never allowing their senses and feelings to become numbed and indifferent, have emerged from their experiences with growth and humanness greater than that achieved through almost any other means.”
—Elisabeth Kübler-Ross (b. 1926)
“When I have plucked the rose,
I cannot give it vital growth again,
It needs must wither. Ill smell it on the tree.”
—William Shakespeare (15641616)
“Yes, I am a thorough republican. No other form of government is so favorable to the growth of art.”
—Oscar Wilde (18541900)