ACTINOCRINUS Meaning and
Definition
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Actinocrinus is a noun that refers to a genus of fossil crinoids, a type of marine animal related to sea lilies and feather stars. Crinoids are ancient echinoderms that were abundant in the seas from the Paleozoic era to the present day. Actinocrinus is a specific genus within this group, typically found in rocks dating from the Devonian period.
These crinoids had a distinctive appearance, characterized by a tall, stalk-like body called a column that was attached to the sea floor. From this column, numerous branching arms extended to capture food particles from the water. The Actinocrinus possessed a calyx, which was the cup-shaped structure at the top of the column where the body and arms were attached. The calyx contained the internal organs, including the digestive system, nerve ganglia, and reproductive organs.
The Actinocrinus was known for its delicate and intricate skeletal structure, often preserved in incredible detail in the fossil record. Its arms were feathery and covered in small, pinnate branches used for filter feeding. These crinoids had a worldwide distribution and were an important part of marine ecosystems during their time.
Today, Actinocrinus fossils are valuable to paleontologists as they provide insights into the evolution and biology of ancient marine life. The study of these fossils helps us understand the history of the Earth and the diversity of organisms that have inhabited it throughout time.
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A genus of encrinites characterised by the thorn-like side arms which project from the main column.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
Common Misspellings for ACTINOCRINUS
- zctinocrinus
- sctinocrinus
- wctinocrinus
- qctinocrinus
- axtinocrinus
- avtinocrinus
- aftinocrinus
- adtinocrinus
- acrinocrinus
- acfinocrinus
- acginocrinus
- acyinocrinus
- ac6inocrinus
- ac5inocrinus
- actunocrinus
- actjnocrinus
- actknocrinus
- actonocrinus
- act9nocrinus
- act8nocrinus
Etymology of ACTINOCRINUS
The word "actinocrinus" has its roots in the Greek language. It is derived from the combination of two Greek words: "aktinḗs" (ἀκτινής) meaning "ray" or "spoke", and "krī́non" (κρίνον) meaning "lily" or "crinoid".
The term "actinocrinus" is the scientific genus name of a type of crinoid, an echinoderm marine animal commonly known as a sea lily. The name is indicative of the organism's appearance, as it refers to the radiating arms or spokes resembling the petals of a lily.
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