333:, the smaller teeth found near the anterior end of the whorl represent the oldest teeth, which the animal grew as a juvenile and the larger and younger teeth found near the back of the whorl represent teeth grown in adulthood. An interesting distinction of Toxoprion are that its older anterior teeth typically appear more rounded than the younger and sharper teeth near the back of its whorl. This may represent damage from feeding or may signify a change in diet and/or feeding strategy with age.
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eugeneodonts which bore a palatoquadrate fused to its skull or reduced in other forms, and had its heavily serrated teeth grow outwards on the
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Zangerl, Rainer. Chondrichthyes I: Paleozoic
Elasmobranchii. Vol. 1. Lubrecht & Cramer Limited, 1981.
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of the lower jaw similar to a rounded saw. Despite its jaw showing similarities to another
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but instead forms a downward curved tooth whorl similar to
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whose fossils are found in marine strata from the Early
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The genus acquired its name from the Greek word τόξο (
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304:does not coil back on itself, as seen in
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252:for "bow saw") is an extinct genus of
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378:"†Toxoprion Hay 1909 (chimaera)"
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649:Mississippian first appearances
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592:. You can help Knowledge by
654:Lopingian genus extinctions
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644:Permian cartilaginous fish
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114:Scientific classification
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329:. As in most members of
16:Extinct genus of sharks
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548:Paleobiology Database
402:Pollerspöck, Jürgen.
408:Shark References.com
404:"Toxoprion lecontei"
282:was one of the many
300:, the tooth row of
231:Toxoprion lecontei
664:Holocephali stubs
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462:Taxon identifiers
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594:expanding it
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444:18 September
442:. Retrieved
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411:. Retrieved
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385:. Retrieved
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223:Type species
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106:Late Permian
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583:prehistoric
494:Wikispecies
440:. Geocities
387:17 December
382:Fossilworks
357:T. lecontei
352:Helicoprion
307:Helicoprion
297:Helicoprion
292:eugeneodont
275:Description
254:eugeneodont
171:Holocephali
633:Categories
376:Hay, O.P.
363:References
167:Subclass:
500:Toxoprion
485:Q18353754
470:Toxoprion
320:Lestrodus
302:Toxoprion
288:symphysis
280:Toxoprion
245:Toxoprion
236:Hay, 1909
216:Hay, 1909
211:Toxoprion
137:Kingdom:
131:Eukaryota
25:Toxoprion
479:Wikidata
337:Taxonomy
190:Family:
151:Chordata
147:Phylum:
141:Animalia
127:Domain:
540:4144808
527:1054096
514:4825216
326:Edestus
265:Permian
203:Genus:
177:Order:
157:Class:
347:prióni
323:, and
100:Early
588:is a
553:34469
522:IRMNG
267:near
590:stub
509:GBIF
446:2014
415:2014
389:2021
343:tóxo
40:PreꞒ
104:to
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90:Pg
34:Ma
621:e
614:t
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248:(
207:†
194:†
181:†
95:N
85:K
80:J
75:T
70:P
65:C
60:D
55:S
50:O
45:Ꞓ
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