15. Paracanthomorphaea comprehend- (1 answer) a. Salmoniformes b. herrings Gadif

Question

15. Paracanthomorphaea comprehend- (1 answer) a. Salmoniformes b. herrings Gadiformes d. lanternfishes e. anglerfishes f. killifishes 16. Cypriniformes include (1 answer). minnows, loaches and gudgeons killifishes c. herrings d. milkfishes e. lanternfishes f. silversides 17. Among fishes,(1 answer). a the ancestral paired fins in Osteichthyes possessed ossa radiales (radial bones) that were positioned on all the rays in an orientation perpendicular to the principal axis b. the ancestral skeleton of Osteichthyes was destitute of a su c. the ancestral skeleton of Osteichthyes was destitute of a supracleithrum d. Dipnoi possess multiple ossa radiales on each ray that proceeds from the central axis e. Devonian Sarcopterygii possessed multiple ossa basales pracoracoid bone t. ancestral Sarcopterygi possessed multiple ossa radiales on each ray extending laterally from the medial axis 18. Primigenial(1 answer). a. Actinopterygii possessed two dorsal fins b. Sarcopterygii possessed a single dorsal fin c. Neopterygii such as Acentrophorus of the Permian period possessed a homocercal caudal fin d. Neopterygi such as Acentrophorus of the Permian period possessed a heterocercal caudal fin Leptolepis("delicate scale" of the urassic period possessed a lamina that was positioned between the anterior maxilla, inferior mandible and posterior part of the upper jaw in the oscitating (gaping) mouth (os) f. Neopterygi possessed a hyomandibula that altered orientation from horizontal to vertical as the oral cavity oscitated 19. Acipenseriformes (1 answer). a. possess osseous (bony) ossa capitales (head bones) b. are ineffectual suctorial ingesters of aliment (food) O possess protrusible gnathoi (Gjaws) d. possess a superior gnathos that is fused to the cranium e. are pelagic f are solely freshwater taxa 20, Acipen seriformes .(1 answer). a. reproduce in the sea b. possess squamae that are sexistrigate (in 6 rows) possess gnathoi that exhibit exiguous protrusion e. are neotropical or paleotropical f possess a prolonged, planar rostrum g i include the Chinese paddlefish whose considerable population has been partially depleted (2 answers). 21. Polypteriformes a are representatives of Actinopteri b. are representatives of Chondrostei c. are representatives of Cladistia d. possess abbreviated pyknic corpus e. possess few fins f. possess a supraoesophageal gaseous bladder

Explanation / Answer

Ans 15 : c) Gadiformes

The earlier name of paracanthomorphacea was superorder paracanthopterygii.

The class includes spiny -finned fishes . It includes gadiformes , Gobiesociformes,batrachoidiformes , lophiiformes etc.

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