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Pangaea itself began to break up early in the Mesozoic, separating North America from the other continents and forming the Gulf of Mexico. Louisiana's fossil record begins in the Late Cretaceous Epoch and documents the presence of sharks and marine invertebrates. After the Cretaceous ended and the Age of Mammals began Louisiana would see local ...
The Louisiana WAP identifies 240 species of concern. The mountain lion population in Louisiana is small but growing in recent times. There is a relatively small and threatened population of Louisiana black bears. The historic range of the Florida panther extended from Florida to Louisiana throughout the Gulf Coast states and Arkansas. Today ...
The Hatchetigbee Bluff Formation is a geologic formation in Alabama, Georgia, Louisiana and Mississippi.The youngest unit of the Wilcox Group preserves fossils dating back to the Ypresian stage of the Eocene period, or Wasatchian in the NALMA classification. [1]
The Louisiana pancake batfish was named as one of the top ten new species of 2010 by the International Institute for Species Exploration at Arizona State University. [1] John Sparks, credited as one of the discoverers of the species, said "If we are still finding new species of fishes in the Gulf, imagine how much diversity, especially ...
Fig.5,6 Diopatra cuprea, illustrated by James Henry Emerton. Diopatra cuprea is an omnivore and scavenger; it feeds on algae as well as on small invertebrates such as copepods, gastropod molluscs, barnacle larvae and hooded shrimps, some of which tend to grow on the exterior of the tube.
This may be a species complex that could be split into different taxa as research indicates; [3] the Apalachicola (N. moleri) and Escambia (N. mounti) waterdogs were split from this species in 2020; previously, they were all grouped together as the Gulf Coast waterdog. [2] It is closely related to Necturus alabamensis. [4]
In the Gulf Coast of the United States, they are found in Florida, Alabama, Mississippi and Louisiana. [1] Outside the United States, the only breeding population is in Mexico 's Yucatán Peninsula, where it is found on the western, northern and eastern coasts. [ 4 ]
Weight vs. length for black drum based on data from the Calcasieu Estuary, Louisiana. (Fall female curve is obscured by the spring female curve. Data are from Jenkins, 2004) Length vs. age for black drum from two Gulf Coast locations. Annual growth rate for ages 1–3 is 100–150 mm/year and then slows to 10–50 mm/year for ages 10–20. [10]