Jeletzkya
| Jeletzkya Temporal range:
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| artist's reconstruction of J. douglassae | |
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| Genus: | Jeletzkya
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| Species: | J. douglassae
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Jeletzkya douglassae is a fossil coleoid from the early Pennsylvanian Mazon Creek lagerstätten and represents the earliest known crown-group squid.[1] Non-mineralized anatomy is preserved and comprises ten hooked tentacles and a radula.
References
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