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Elasmobranchii is one of the two subclasses of cartilaginous fish in the class Chondrichthyes, the other being Holocephali . Members of the elasmobranchii subclass have no swim bladders, five to seven pairs of gill clefts opening individually to the exterior, rigid dorsal fins, and small placoid scales. The teeth are in several series; the ...
Many had hypocercal tails in order to generate lift to increase ease of movement through the water for their armoured bodies, which were covered in dermal bone. They also had sucking mouth parts and some species may have lived in fresh water. The taxon contains the subgroups Heterostraci, Astraspida, Arandaspida. † Thelodonti (extinct)
Synechodontiformes (1 C, 2 P) X. Xenacanths (10 P) Pages in category "Elasmobranchii" The following 15 pages are in this category, out of 15 total.
The common eagle ray was found to have lower mercury concentrations (0.67-1.01 mg/kg) than Chimaera monstrosa or Torpedo nobiliana. This is likely due to its diet as both the other two species feed on higher trophic levels (compared to the invertebrates that make up this eagle ray's diet).
New York Daily News Archive - Getty Images Macy's: 2000 Santa and his sleigh are ready to take flight from the North Pole in this Macy's window display in Manhattan.
They can certainly all reach about 6 m (20 ft) in total length and there are reports of individuals larger than 7 m (23 ft), but these are often labeled with some uncertainty. [1] Typically reported maximum total lengths of these three are from 7 to 7.6 m (23–25 ft). [ 1 ]
Authorities believe Rodriguez was "attempting to summit Mt. Whitney on December 30, 2024," before he was reported missing on Jan. 2. A search and rescue operation was initiated and authorities ...
An American Airlines flight departing New York's LaGuardia Airport on Thursday evening had to divert to nearby John F. Kennedy International shortly after takeoff after a reported bird strike ...