| Thyellisca | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Subclass: | Heterodonta |
| Order: | Cardiida |
| Family: | Semelidae |
| Genus: | Thyellisca H. E. Vokes, 1956 |
| Species | |
| |
Thyellisca is a genus of marine clams in the family Semelidae.
The commandant of the Marine Corps (CMC) is normally the highest-ranking officer in the United States Marine Corps and is a member of the Joint Chiefs of Staff. The CMC reports directly to the secretary of the Navy and is responsible for ensuring the organization, policy, plans, and programs for the Marine Corps as well as advising the president, the secretary of defense, the National Security Council, the Homeland Security Council, and the secretary of the Navy on matters involving the Marine Corps. Under the authority of the secretary of the Navy, the CMC designates Marine personnel and resources to the commanders of Unified Combatant Commands. The commandant performs all other functions prescribed in Section 5043 in Title 10 of the United States Code or delegates those duties and responsibilities to other officers in his administration in his name. As with the other joint chiefs, the commandant is an administrative position and has no operational command authority over United States Marine Corps forces.
Marine biology is the scientific study of marine life, organisms in the sea. Given that in biology many phyla, families and genera have some species that live in the sea and others that live on land, marine biology classifies species based on the environment rather than on taxonomy.
The United States Armed Forces are the military forces of the United States of America. It consists of the Army, Marine Corps, Navy, Air Force, Space Force, and Coast Guard. The president of the United States is the commander-in-chief of the Armed Forces and forms military policy with the Department of Defense (DoD) and Department of Homeland Security (DHS), both federal executive departments, acting as the principal organs by which military policy is carried out. All six armed services are among the eight uniformed services of the United States.
The Guadalcanal campaign, also known as the Battle of Guadalcanal and codenamed Operation Watchtower by American forces, was a military campaign fought between 7 August 1942 and 9 February 1943 on and around the island of Guadalcanal in the Pacific theater of World War II. It was the first major land offensive by Allied forces against the Empire of Japan.
The Battle of Iwo Jima was a major battle in which the United States Marine Corps and Navy landed on and eventually captured the island of Iwo Jima from the Imperial Japanese Army (IJA) during World War II. Lying roughly halfway between American Army Airforce bases in the Mariana Islands and the Japanese islands, the military base on Iwo Jima gave the Japanese an ability to send early air raid warnings to the Japanese mainland and launch fighters from its airfields to intercept raids. The American invasion, designated Operation Detachment, had the purpose of capturing the island with its two airfields: South Field and Central Field. The strategic objectives were twofold: the first was to provide an emergency landing strip for battle-damaged B-29s unable to make it back to US air bases in the Marianas Tinian, Saipan, Guam. The second was to provide air fields for fighter escorts, long-range P-51s, to provide fighter coverage to the bombers. The five-week battle saw some of the fiercest and bloodiest fighting of the Pacific War.
The Great Barrier Reef is the world's largest coral reef system composed of over 2,900 individual reefs and 900 islands stretching for over 2,300 kilometres (1,400 mi) over an area of approximately 344,400 square kilometres (133,000 sq mi). The reef is located in the Coral Sea, off the coast of Queensland, Australia. The Great Barrier Reef can be seen from outer space and is the world's biggest single structure made by living organisms. This reef structure is composed of and built by billions of tiny organisms, known as coral polyps. It supports a wide diversity of life and was selected as a World Heritage Site in 1981. CNN labelled it one of the seven natural wonders of the world. The Queensland National Trust named it a state icon of Queensland.
The Corps of Royal Marines (RM) is an amphibious light infantry and also one of the five fighting arms of the Royal Navy. The marines can trace their origins back to the formation of the English Army's "Duke of York and Albany's maritime regiment of Foot" at the grounds of the Honourable Artillery Company on 28 October 1664.
Raising the Flag on Iwo Jima is an iconic photograph of six United States Marines raising the U.S. flag atop Mount Suribachi during the Battle of Iwo Jima in the final stages of the Pacific War. The photograph, taken by Joe Rosenthal of the Associated Press on February 23, 1945, was first published in Sunday newspapers two days later and reprinted in thousands of publications. It was the only photograph to win the Pulitzer Prize for Photography in the same year as its publication, and was later used for the construction of the Marine Corps War Memorial in 1954, which was dedicated to honor all Marines who died in service since 1775. The memorial, sculpted by Felix de Weldon, is located in Arlington Ridge Park, near the Ord-Weitzel Gate to Arlington National Cemetery and the Netherlands Carillon. The photograph has come to be regarded in the United States as one of the most significant and recognizable images of World War II.
The 1st Marine Division is a Marine infantry division of the United States Marine Corps headquartered at Marine Corps Base Camp Pendleton, California. It is the ground combat element of the I Marine Expeditionary Force.
Marines, are typically a military force trained to operate in littoral combat theatres. In most countries, the marines are an integral part of that state's navy. In others, marines can also fall under a country's army, as with the Troupes de marine.
United States Marine Forces Special Operations Command (MARSOC) is a component command of the United States Special Operations Command that comprises the Marine Corps' contribution to SOCOM. Its core capabilities are direct action, special reconnaissance and foreign internal defense. MARSOC has also been directed to conduct counter-terrorism and information operations.
In the United States Army, U.S. Marine Corps, U.S. Air Force and U.S. Space Force, lieutenant colonel is a field grade officer rank, just above the rank of major and just below the rank of colonel. It is equivalent to the naval rank of commander in the other uniformed services.
The United States Marine Corps (USMC) prescribes several types of military uniform to distinguish its service members from other armed services, depending on the situation.
The Semelidae are a family of saltwater clams, marine bivalve molluscs in the order Cardiida.
The United States Marine Corps (USMC), also referred to as the United States Marines, is the maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through combined arms, implementing its own infantry, armor, artillery, aerial and special operations forces. The U.S. Marine Corps is one of the eight uniformed services of the United States.
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms.
An officer is a member of an armed forces or uniformed service who holds a position of authority.
Cumingia is a genus of marine clams in the family Semelidae. It is also represented in the fossil record.
Thyellisca lamellosa is a species of marine clams in the family Semelidae.
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