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Blue crab escaping from the net along the Core Banks of North Carolina.. Callinectes sapidus (from the Ancient Greek κάλλος,"beautiful" + nectes, "swimmer", and Latin sapidus, "savory"), the blue crab, Atlantic blue crab, or, regionally, the Maryland blue crab, is a species of crab native to the waters of the western Atlantic Ocean and the Gulf of Mexico, and introduced internationally.
The oldest fossil crustaceans are in the Cambrian. The group experienced a significant radiation in the oceans during the Mesozoic Marine Revolution. The above photo depicts a ~freshly dead female blue crab, Callinectes sapidus. Info. from Witherington & Witherington (2007): "Blue crabs are swimming crabs in the Family Portunidae.
Cancridae is a family of crabs. It comprises six extant genera, [1] and ten exclusively fossil genera, [2] in two subfamilies: Extant Genera.
Index fossils are species of plants or animals that existed over a wide area for a geologically short period of time . [3] The cephalopod Jeletzkytes nodosus is a time-sensitive fossil found in rocks a little younger than 70.6 million years old in the western United States. Other index fossils from Coon Creek date a little older than 70.6 ...
The order is estimated to contain nearly 15,000 extant species in around 2,700 genera, with around 3,300 fossil species. [1] Nearly half of these species are crabs, with the shrimp (about 3,000 species) and Anomura including hermit crabs, king crabs, porcelain crabs, squat lobsters (about 2500 species) making up the bulk of the remainder. [1]
Blue crab Callinectes sapidus: The blue crab is found in the Chesapeake Bay and is the most valuable species harvested from the bay. 1989 [7] Dinosaur: Astrodon Astrodon johnstoni: In 1958, the first Astrodon fossils were found in Maryland. They lived in what is now Maryland from 130 to 95 million years ago. 1998 [8] Dog
Chelonibia is a genus of acorn barnacles in the family Chelonibiidae of the subphylum Crustacea. [1] Its members are epizootic and live attached to manatees, turtles, marine molluscs, crabs and horseshoe crabs in all tropical and subtropical oceans. [2]
Fossils are rarely preserved in tropical settings in comparison to other parts of the world, making this fossil an even more unusual discovery. [7] An in-depth study of the crab's eyes indicated that Callichimaera was an active predator living high in the water column .