Chordate Review Quiz Flashcards by William Max Brcko

what are the common names for Echinodermata

sea stars, sea cucumbers, sand dollars

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what is a characteristic of Echinodermata

bilateral symmetry as larvae, but develop radial symmetry as adults (pentameral shape)

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how do Echinodermata move

internal water canals that form suction “tube-feet”

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what are characteristics of Chordata

bilateral symmetry, segmented body, coelom, hollow dorsal nerve cord, notochord, pharyngeal respiration, ventral heart, blood runs posterior

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what are the three types of chordata

Cephalochordata, Urochordata, and Vertebrata (Craniata)

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what are the common names of Cephalochordata

lancelets or Amphioxus

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what is a diagnostic feature of Cephalochordata

notochord extends entire body length (i.e. name of them)

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what are the common names of Urochordata

tunicates or sea squirts

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what is a diagnostic feature or Urochordata

sac-like tunic and two sets of siphons

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what is a diagnostic feature of Vertebrata (Craniata)

skeleton with vertebrae and cranium, pituitary and thyroid glands, muscular heart, advanced nervous system

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what are the diagnostic features of agnatha

no jaws, no true paired appendages

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what is the common name of agnatha

cyclostomes (circle mouth)

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what are the three types of Agnatha

Cyclostomata, Pteraspidomorpha, and Cephalaspidomorpha

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what are the two types of Cyclostomata

Myxiniformes, Petromyzontiformes

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what is the common name for Myxiniformes

hagfishes

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what are the diagnostic features of Myxiniformes

parasitic, elongated body, eel-like, terminal open mouth, no maternal appendages

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what is the common name of Petromyzontiformes

Lamprey

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what are the diagnostic features of Petromyzontiformes

parasitic, elongated body, eel-like, terminal open mouth, no lateral appendages

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what are diagnostic features of Pteraspidomorpha

two nostrils (diplorhina)

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what are the diagnostic features of Cephalaspidomoprha

single nostril (monorhina)

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what are the two types of Vertebrata (Craniata)

Agnatha, Gnathostomata

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what are diagnostic features of Gnathostomata

jaws

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what are the three types of Gnathostomata

Placoderms, Chondrichthyes, and Teleostomi

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what are diagnostic features of Placodermi

bony armor (varying degree), and head and thoracic armor at movable hinge.

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what are the two types of Chondrichthyes

Elasmobranchii and Holocephali

what are diagnostic features of Chondrichthyes

solid cranium, males have clasping organs, no lungs or bladder, chiefly marine

what are the diagnostic features of Elasmobranchii

separate gill openings, spiracle present, numerous teeth (replaced)

what is the common name of Selachimorpha

sharks

what are diagnostic features of Selachimorpha

mental mouth, paired fines, no median axis, tail heterocercal

what are the common names of Batidoidimorpha

rays and skates

what are the diagnostic features of Batidoidimorpha

torso-ventrally flattened, mouth ventral, paired fins with broad base, weakly heterocercal tails

what are the common name of Holocephali

chimaeras and ratfish

what are the diagnostic features of Holocephali

gill opens covered by operculum, spiracle absent, naked skin, open lateral line system, few teeth

what are the diagnostic features of Acanthodii

numerous paired fins supported by stout spines

what are the diagnostic features of Teleostomi

complete bony endoskeleton

what are the three types of Telostomi

Actinopterygii, Neopterygii, and Sarcopterygii

what are the two types of Actinopterygii

Palaeonisciformes, and Chondrostei

what is the common name of Palaeonisciformes

primitive ray-finned fish

what are diagnostic features of Palaeoniscifiromes

ganoid scales, heterocercal tail, poor ossified skeleton, and spiracle

what are the common names of Chondrostei

sturgeon, paddlefishes, and reedfishes

what are diagnostic features of Chondrostei

cartilage endoskeleton, and spiracle

what are the two types of Chondrostei

Polypteriformes and Acipenseriformes

what are the common names of Polypteriformes

bichirs, and reedfishes

what are the diagnostic features or Polypteriformes

flesh pectoral fins, dorsal fin divided into many finlets

what are the common names of Acipenseriformes

sturgeon, paddlefish

what are diagnostic features of Acipenseriformes

heavy ganoid scales, endoskeleton poorly ossified, heavily ossified cranium

what is the common name of Neopterygii

advanced ray-finned fishes

what are the diagnostic features of Neopterygii

increased jaw mobility, reduced scales and homocercal tail

what are the common names of Holostei

gars and bowfins

what are the diagnostic features of Holostei

ganoid scales, skull bones fused and thick, teeth on all mouth bones

what are the two types of Holostei

Lepisosteiformes and Amiiformes

what is the common name of Lepisosteiformes

gars

what are the diagnostic features of Lepisosteiformes

ganoid scales, skull bones fused and thick, long jaws

what is the common name of Amiiformes

bowfins

what are the diagnostic features of Amiiformes

ganoid scales, skull bones fused and thick

What are the common names of Teleosti

most living fish

what are the diagnostic features of Teleosti

reduced scales, ossified vertebrae, circular scales when present, swim bladder

what are the diagnostic features of Sarcopterygii

internal nostrils, strong jaws

what are the two types of Sarcopterygii

Crossopterygii and Dipnoi

What are the two types of Crossopterygii

Rhipidistia and Coelacanthiformes (Actinistia)

what are the common names for Rhipidistia

rhipidistians or (osteoleis)

what are the diagnostic features of Rhipidistia

modified skull for greater mobility and specialized feeding, labyrinth teeth

what are the common names for Coelacanthiformes (Actinistia)

latimeria, and coelacanth

what are diagnostic features of Coelacanthiformes (Actinistia)

prominent notochord, swim bladder filled with fat in non-extinct fishes

what is the common name of Dipnoi

lung fish

what are the diagnostic features of Dipnoi

endoskeleton poorly ossified pectoral fin, few forming large crushing plates

what are the two types of Elasmobranchii

Selachimorpha and Batidoidimorpha

Chordate Review Quiz Flashcards

(67 cards)