Question: Which dog is now extinct, the Tahltan Bear Dog or the Stichelhaar?

Context paragraphs:
Haplocyonoides: Haplocyonoides is an extinct genus of terrestrial carnivores belonging to the suborder Caniformia, family Amphicyonidae ("bear dog"), and which inhabited Europe from the Early Miocene subepoch (20 Mya)—(16.9 Mya).  "Haplocyonoides" existed for approximately .

Arctocyon: Arctocyon ('bear dog') is an extinct genus of ungulate mammals.  "Arctocyon" was a "ground dwelling omnivore", that lived from 61.3-56.8 Ma.  Synonyms of "Arctocyon" include "Claenodon", and "Neoclaenodon".  "Arctocyon" was likely plantigrade, that is, walked like a bear.

Tahltan Bear Dog: The Tahltan Bear Dog was a breed of dog that was indigenous to Canada.  This breed is believed to be extinct by most authorities.

Paradaphoenus: Paradaphoenus is a physically small member of the extinct family of terrestrial carnivores belonging to the suborder Caniformia, family Amphicyonidae ("bear dog"), and which inhabited North America from the Early Oligocene subepoch to the Early Miocene subepoch living 33.9—16.3 Ma, existing for approximately .

Amphicyanis: Amphicyanis is an extinct genus of terrestrial carnivores belonging to the suborder "Caniformia", family Amphicyonidae ("bear dog"), and which inhabited Eurasia and North America.

Gustafsonia: Gustafsonia is an extinct genus of carnivoran belonging to the family Amphicyonidae (a bear dog).  The type species, Gustafsonia cognita, was described in 1986 by Eric Paul Gustafson, who originally interpreted it as a miacid and named it Miacis cognitus.  It was subsequently considered to be the only species of the diverse genus "Miacis" that belonged to the crown-group Carnivora, within the Caniformia, and it was ultimately assigned to the family Amphicyonidae.  The type specimen or holotype was discovered in Reeve's bonebed, western Texas, in the Chambers Tuff Formation in 1986.  The University of Texas holds this specimen.  It is the only confirmed fossil of this species.

Agnotherium: Agnotherium is an extinct genus of large terrestrial carnivores belonging to the suborder Caniformia, family Amphicyonidae ("bear dog"), and which inhabited Europe and North Africa from the Early Miocene subepoch to the Middle Miocene subepoch 16.9—11.6 Mya, existing for approximately .

Haplocyonopsis: Haplocyonopsis is an extinct genus of terrestrial carnivores belonging to the suborder Caniformia, family Amphicyonidae ("bear dog").

Stichelhaar: The German Roughhaired Pointer ("Deutsch Stichelhaar") is a versatile hunting dog that originated in Frankfurt, Germany.  The breed was developed in the early 1900s and is a cross between German sheepdogs and rough-haired "standing dogs".

Angelarctocyon: Angelarctocyon is an extinct genus of Amphicyonidae (bear dog), which belongs to the order Carnivora.

Supporting paragraphs: Tahltan Bear Dog Stichelhaar
Answer: Tahltan Bear Dog