Alfred Sherwood Romer was an American paleontologist and
comparative anatomistComparative anatomy is the study of similarities and differences in the anatomy of organisms. It is closely related to evolutionary biology and phylogeny .-Description:...
and a specialist in
vertebrateVertebrates are animals that are members of the subphylum Vertebrata . Vertebrates are the largest group of chordates, with currently about 58,000 species described. Vertebrates include the jawless fishes, bony fishes, sharks and rays, amphibians, reptiles, mammals, and birds...
evolutionEvolution is any change across successive generations in the heritable characteristics of biological populations. Evolutionary processes give rise to diversity at every level of biological organisation, including species, individual organisms and molecules such as DNA and proteins.Life on Earth...
.
Biography
Alfred Romer was born in
White PlainsWhite Plains is a city and the county seat of Westchester County, New York, United States. It is located in south-central Westchester, about east of the Hudson River and northwest of Long Island Sound...
, New York, and studied at
Amherst CollegeAmherst College is a private liberal arts college located in Amherst, Massachusetts, United States. Amherst is an exclusively undergraduate four-year institution and enrolled 1,744 students in the fall of 2009...
and
Columbia UniversityColumbia University in the City of New York is a private, Ivy League university in Manhattan, New York City. Columbia is the oldest institution of higher learning in the state of New York, the fifth oldest in the United States, and one of the country's nine Colonial Colleges founded before the...
, graduating with a doctorate in
zoologyZoology |zoölogy]]), is the branch of biology that relates to the animal kingdom, including the structure, embryology, evolution, classification, habits, and distribution of all animals, both living and extinct...
in 1921. Romer joined the department of geology and paleontology at the University of Chicago as an associate professor in 1923. He was an active researcher and teacher. His collecting program added important Paleozoic specimens to the Walker Museum of Paleontology. In 1934 he was appointed professor of
biologyBiology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution, and taxonomy. Biology is a vast subject containing many subdivisions, topics, and disciplines...
at
Harvard UniversityHarvard University is a private Ivy League university located in Cambridge, Massachusetts, United States, established in 1636 by the Massachusetts legislature. Harvard is the oldest institution of higher learning in the United States and the first corporation chartered in the country...
. In 1946, he also became director of the Harvard
Museum of Comparative ZoologyThe Museum of Comparative Zoology, full name "The Louis Agassiz Museum of Comparative Zoology", often abbreviated simply to "MCZ", is a zoology museum located on the grounds of Harvard University in Cambridge, Massachusetts. It is one of three museums which collectively comprise the Harvard Museum...
. In 1954 Romer was awarded the
Mary Clark Thompson MedalThe Mary Clark Thompson Medal is awarded by the U.S. National Academy of Sciences "for most important service to geology and paleontology." Named after Mary Clark Thompson, it was first awarded in 1921.- List of Mary Clark Thompson Medal winners :...
from the
National Academy of SciencesThe National Academy of Sciences is a corporation in the United States whose members serve pro bono as "advisers to the nation on science, engineering, and medicine." As a national academy, new members of the organization are elected annually by current members, based on their distinguished and...
. He was awarded the Academy's
Daniel Giraud Elliot MedalThe Daniel Giraud Elliot Medal is awarded by the U.S. National Academy of Sciences "for meritorious work in zoology or paleontology published in a three- to five-year period." Named after Daniel Giraud Elliot, it was first awarded in 1917....
in 1956.
Evolutionary research
Romer was very keen in investigating vertebrate evolution. Comparing facts from
paleontologyPaleontology "old, ancient", ὄν, ὀντ- "being, creature", and λόγος "speech, thought") is the study of prehistoric life. It includes the study of fossils to determine organisms' evolution and interactions with each other and their environments...
, comparative
anatomyAnatomy is a branch of biology and medicine that is the consideration of the structure of living things. It is a general term that includes human anatomy, animal anatomy , and plant anatomy...
, and
embryologyEmbryology is a science which is about the development of an embryo from the fertilization of the ovum to the fetus stage...
, he taught the basic structural and functional changes that happened during the
evolutionEvolution is any change across successive generations in the heritable characteristics of biological populations. Evolutionary processes give rise to diversity at every level of biological organisation, including species, individual organisms and molecules such as DNA and proteins.Life on Earth...
of
fishFish are a paraphyletic group of organisms that consist of all gill-bearing aquatic vertebrate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups...
es to primitive terrestrial
vertebrateVertebrates are animals that are members of the subphylum Vertebrata . Vertebrates are the largest group of chordates, with currently about 58,000 species described. Vertebrates include the jawless fishes, bony fishes, sharks and rays, amphibians, reptiles, mammals, and birds...
s and from these to all other
tetrapodTetrapods are vertebrate animals having four limbs. Amphibians, reptiles, birds and mammals are all tetrapods; even snakes and other limbless reptiles and amphibians are tetrapods by descent. The earliest tetrapods evolved from the lobe-finned fishes in the Devonian...
s. He always emphasized the evolutionary significance of the relationship between the form and function of animals and the environment.
Through his textbook
Vertebrate PaleontologyVertebrate Paleontology is an advanced textbook on vertebrate paleontology by Alfred Sherwood Romer, published by the University of Chicago Press. It went through three editions and for many years constituted a very authoritative work and the definitive coverage of the subject. A condensed...
Romer laid the foundation for the traditional classification of vertebrates. He drew together the (then) widely scattered taxonomy of the different vertebrate groups and combined them in a simplified scheme, emphasizing orderliness and overview. Based on his research of early amphibians, he reorganised the
labyrinthodontiaLabyrinthodontia is an older term for any member of the extinct subclass of amphibians, which constituted some of the dominant animals of Late Paleozoic and Early Mesozoic times . The group is ancestral to all extant landliving vertebrates, and as such constitutes an evolutionary grade rather...
ns. Romer's classification was followed by many subsequent authors, notably
Robert L. CarrollRobert Lynn Carroll is a vertebrate paleontologist who specialises in Paleozoic and Mesozoic amphibians and reptiles.Carroll was an only child and grew up on a farm near Lansing, Michigan...
, and is still in use.
Namesake
A small genus of primitive reptiles is named
RomeriaRomeria is an extinct genus of Early Permian captorinid known from Texas of the United States. It was first named by Llewellyn Ivor Price in 1937 and the type species is Romeria texana. R. texana is known from the holotype MCZ 1480, a three-dimensionally preserved skull...
after Romer, as is the term
RomeriidaRomeriida is a clade of reptiles that consists of diapsids and the extinct protorothyridid genus Paleothyris, if not the entire family Protorothyrididae. It is phylogenetically defined by Laurin & Reisz as the last common ancestor of Paleothyris and diapsids, and all its descendants...
(a cladistic term for all reptiles and birds, but excluding turtles). In July 2007 a species of pre-dinosaur or
DinosauromorphaDinosauromorpha is the name of a clade of archosaurs that includes the closest relatives of dinosaurs, and the order Dinosauria itself. Basal forms include Saltopus, Marasuchus, the perhaps identical Lagosuchus, the lagerpetonids Lagerpeton from the Ladinian of Argentina and Dromomeron from the...
was named
Dromomeron romeri, "the first part meaning 'running femur,' the latter in honor of paleontologist Alfred Sherwood Romer, a key figure in evolution research". The finding of these fossils was hailed as a breakthrough proving dinosaurs and dinosauromorphs "lived together for as long as 15 million to 20 million years."
Romer was the first to recognise the gap in the fossil record between the early land fauna of the
DevonianThe Devonian is a geologic period and system of the Paleozoic Era spanning from the end of the Silurian Period, about 416.0 ± 2.8 Mya , to the beginning of the Carboniferous Period, about 359.2 ± 2.5 Mya...
and the later
CarboniferousThe Carboniferous is a geologic period and system that extends from the end of the Devonian Period, about 359.2 ± 2.5 Mya , to the beginning of the Permian Period, about 299.0 ± 0.8 Mya . The name is derived from the Latin word for coal, carbo. Carboniferous means "coal-bearing"...
period, a gap that still bears the name
Romer's gapRomer's Gap is an example of a gap in the fossil record used in the study of evolution. Such gaps represent a period from which excavators have found no or very few fossils. Romer's gap is named after paleontologist Dr...
.
Books
- Romer, A.S. 1933. Vertebrate Paleontology
Vertebrate Paleontology is an advanced textbook on vertebrate paleontology by Alfred Sherwood Romer, published by the University of Chicago Press. It went through three editions and for many years constituted a very authoritative work and the definitive coverage of the subject. A condensed...
. University of Chicago Press, Chicago. (2nd ed. 1945; 3rd ed. 1966)
- Romer, A.S. 1933. Man and the Vertebrates. University of Chicago Press, Chicago. (2nd ed. 1937; 3rd ed. 1941; 4th ed., retitled The Vertebrate Story, 1949)
- Romer, A.S. 1949. The Vertebrate Body. W.B. Saunders, Philadelphia. (2nd ed. 1955; 3rd ed. 1962; 4th ed. 1970)
- Romer, A.S. 1949. The Vertebrate Story. University of Chicago Press, Chicago. (4th ed. of Man and the Vertebrates)
- Romer, A.S. 1956. Osteology of the Reptiles. University of Chicago Press, Chicago.
- Romer, A.S. 1968. Notes and Comments on Vertebrate Paleontology. University of Chicago Press, Chicago.
- Romer, A.S. & T.S. Parsons. 1977. The Vertebrate Body. 5th ed. Saunders, Philadelphia. (6th ed. 1985)
External links
- http://people.wku.edu/charles.smith/chronob/ROME1894.htm