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Myra Keen

Myra Keen is a earth science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Myra Keen rather than just read about it. In short: Angeline Myra Keen (1905–1986) was an American malacologist and invertebrate paleontologist. She was an expert on the evolution of marine mollusks with a PhD in psychology.

Key takeaways

  • Myra Keen belongs to earth science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Myra Keen to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Myra Keen from memory before moving on to harder problems.

Reference excerpt

Angeline Myra Keen (1905–1986) was an American malacologist and invertebrate paleontologist. She was an expert on the evolution of marine mollusks with a PhD in psychology. Keen went from being a volunteer, identifying shells at Stanford, and having no formal training in biology or geology, to being one of the world's foremost malacologists. She was called the "First Lady of Malacology".

Early life and education Myra Keen was born on May 23, 1905, in Colorado Springs, Colorado, to parents Ernest Byron and Mary Thurston Keen. Prior to pursuing earth sciences, Keen intended to become a concert pianist. Deterred from entomology, she finally turned to psychology as her field of study. Keen attended Colorado College and graduated in 1930 with a degree in psychology. In 1931, shortly after she decided to continue her education, she won a fellowship to Stanford University, enabling her to complete her master's degree. Keen went on to complete her PhD in psychology, attending the University of California, Berkeley in 1934. While studying at Berkeley, Keen became interested in seashells, which she collected during trips to Monterey in the summer. The discovery of these sea shells sparked Keen's interest in malacology, and she spent the following summer in Monterey collecting different specimens and sea shells. Struggling to find a job, Keen started volunteering at Stanford's Hopkins Marine Station, identifying seashells for the geology department and working under Ida Shepard Oldroyd. Keen was able to establish a connection with Oldroyd, who at the time was the curator of shell collections at Stanford University. The volunteer position was her first time studying mollusks, aside from previous classes in geology, biology and statistics.

Career After she received her Ph.D., Keen was unable to find a job within the field of psychology due to the major impact of The Great Depression, leaving her unemployed. However, at the same time, some seashells she bought from a curio shop in Berkeley drew her attention and she found more during a trip to Monterey. After learning that Ida Oldroyd's work at Stanford involved shells, Keen volunteered herself to be an assistant of Oldroyd. During this time, she became an informal student of a Stanford paleontologist, Hubert Schenk. According to her own description, it was this tutorship that provided her the academic guidance in paleontology she needed. Concurrently, Keen audited Schenk's geology classes that focused on paleontology and stratigraphy and collaborated on research. After four years of volunteering, Stanford hired her as the curator of paleontology. Over the course of 23 years of teaching, during which she was one of only three female science professors, she taught courses on paleontology, curatorial methods, and biological oceanography, among other subjects. In 1954 Keen became assistant professor of paleontology, followed by curator of malacology in 1957. In 1964 she was awarded a Guggenheim Fellowship. Keen retired in 1970 as professor of paleontology emeritus and curator of malacology emeritus. She was a member of Phi Beta Kappa and a fellow at the Geological Society of America and the Paleontological Society. In 1979, she was the first woman to be given the Fellow Medal from the California Academy of Sciences. She served as chair of the Committee on Nomenclature of the Society of Systematic Zoology. She was also president of the Western Society of Malacologists and the American Malacological Union. Myra Keen was active in publishing. She wrote nine books. A few of her most noted published books are, Abridged Check List and Bibliography of West North American Mollusca (1937), Check List of California Tertiary Marine Mollusca (1944) which she co-wrote with Herdis Bentson, Sea Shells of Tropical West America (1958), and a second edition (1971) with the assistance James H. McLean, Marine Molluscan Genera of Western North America: An Illustrated Key (1963), and a second edition (1974), coauthored with Eugene Coan. In addition, Keen wrote over seventy-five papers that were published in scholarly journals. One of the first articles she wrote was focused on her documentation of how molluscan faunas reacted to changes at different latitudes due to the gradual cooling of the sea. The study that she published on this subject was valuable to geologists for two main reasons. It helped geologists understand the temperature change of the sea in past times, as well as identifying source areas of sedimentary rocks that had moved to new positions due to continental drift. Her research work focused around mollusk systematics, as well as marine molluscan Cenozoic paleontology, neontology and zoogeography of the western North America and marine mollusk fauna from the Panamic Province. She helped catalog, organize and collect for the Cenozoic mollusk collection at Stanford. Keen provided the first research documentation regarding how the distribution of mollusks on the Pacific coast is affected by temperature. In 1960, in the eastern Pacific Ocean, she discovered the first living examples of bivalved gastropods, which were in the species and subspecies Berthelinia chloris belvederica. Prior to this discovery, bivalved gastropods had been identified as bivalves, based on the shell characteristics. In 1975, Keen was invited to meet with Emperor Hirohito of Japan. He was a collector of shells, and had sent Keen specimens. The two also exchanged papers. When he visited in 1975 the two met in San Francisco, where they discussed their shared interest of shells and invertebrates.

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Myra Keen

Start with the simplest possible case. Write down what Myra Keen claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In earth science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Myra Keen before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Myra Keen ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Myra Keen

In research
Myra Keen appears in earth science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Myra Keen in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Myra Keen is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1905 births, 1986 deaths, 20th-century American geologists, so understanding it makes those chapters shorter.
In everyday life
Look for Myra Keen outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Myra Keen in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Myra Keen means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Myra Keen out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Myra Keen in simple terms?

Angeline Myra Keen (1905–1986) was an American malacologist and invertebrate paleontologist. She was an expert on the evolution of marine mollusks with a PhD in psychology.

Why does Myra Keen matter?

Because it connects several earth science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Myra Keen?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Myra Keen.

Tags

  • 1905 births
  • 1986 deaths
  • 20th-century American geologists
  • 20th-century American women biologists
  • 20th-century American zoologists
  • 20th-century Quakers
  • Academics from Colorado Springs, Colorado
  • American Quakers
  • American feminists
  • American malacologists
  • American paleontologists
  • American women geologists

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