Diplochaetetes longitubus

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Diplochaetetes longitubus
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Annelida
Clade: Pleistoannelida
Clade: Sedentaria
Order: Terebellida
Family: Cirratulidae
Genus:† Diplochaetetes
Species:
†D. longitubus
Binomial name
†Diplochaetetes longitubus
Weissermel, 1913

Diplochaetetes longitubus is an extinct species of cirratulid polychaete within the genus Diplochaetetes known from Namibian sedimentary rocks dating back to the Eocene. [1] It was initially described as a tabulate coral, but research carried out on present-day Dodecaceria aggregates and Diplochaetetes mexicanus fossils from the pacific coasts of the Americas has led researchers to classify the entire genus as cirratulid polychaetes. [2] [3] [4] For many decades, they've also been erroneously attributed to sponges. [5]

A subspecies named Diplochaetetes longitubus vermicularis was also later described from Eocene Namibian sediments. [6]

Although present-day Dodecaceria and fossil Diplochaetetes aggregates from Peru have been confirmed to show identical double-phased biomineralization characteristics, [7] no detailed analysis has been performed on their Namibian counterparts so it's unclear whether the trait is shared on a broad genus basis.

References

  1. ↑ Weissermel W (1913). "Uber tertiäre Versteinerungen von den Bogenfelser Diamantfeldern II. Tabulaten und Hydrozoen". Beiträge zur geologischen Erforschung der deutschen Schutzgebiete. 5: 84–111.
  2. ↑ Reish DJ (1952). "Discussion of the colonial tube-building polychaetous annelid Dodecaceria fistulicola Ehlers". Bulletin of the Southern California Academy of Sciences. 51: 103–107. doi:10.3160/0038-3872-51.3.103 (inactive 1 July 2025).{{cite journal}}: CS1 maint: DOI inactive as of July 2025 (link)
  3. ↑ Fischer R, Galli Oliver C, Reitner J (1989). "Skeletal structure, growth, and paleoecology of the patch reef-buildingpolychaete worm Diplochaetetes mexicanus wilson, 1986 from the oligocene of baja california (Mexico)". Geobios. 22 (6): 761–775. Bibcode:1989Geobi..22..761F. doi:10.1016/S0016-6995(89)80071-3.
  4. ↑ Fischer R, Pernet B, Reitner, J (2000). "Organomineralization of cirratulid annelid tubes-fossil and recent examples". Facies. 42 (1): 35–49. Bibcode:2000Faci...42...35F. doi:10.1007/BF02562565. S2CID   128949856.
  5. ↑ Wilson EC (1986). "The first tertiary sclerosponge from the Americas". Palaeontology. 29 (3): 577–583.
  6. ↑ Weissermel W (1926). "Neues uber Tabulaten, Hydrozoen und eine Hexakoralle aus dem Tertiar der Bogenfelser Diamantenfelder". Die Diamantenwuste Sudwest-Afrikas. (Ed Kaiser, H.). 2: 88–106.
  7. ↑ Guido A, D'Amico F, DeVries TJ, Kočí T, Collareta A, Bosio G, Sanfilippo R (2024). "Double-phased controlled and influenced biomineralization in marine invertebrates: The example of Miocene to recent reef-building polychaete cirratulids from southern Peru". Palaeogeography, Palaeoclimatology, Palaeoecology. 639 112060. Bibcode:2024PPP...63912060G. doi:10.1016/j.palaeo.2024.112060. S2CID   267306998.
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