Academic Journal
Acrothoracican bioerosion as evidence of Early Cretaceous barnacles (Cirripedia) in northwestern Gondwana.
| Τίτλος: | Acrothoracican bioerosion as evidence of Early Cretaceous barnacles (Cirripedia) in northwestern Gondwana. |
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| Συγγραφείς: | Cadena EA; Escuela de Ciencias e Ingeniería, Grupo de Paleontología Neotropical Tradicional y Molecular (PaleoNeo), Universidad del Rosario, Bogotá, Colombia.; Smithsonian Tropical Research Institute, Panama City, Panama.; Field Museum of Natural History, Chicago, USA. |
| Πηγή: | PeerJ [PeerJ] 2026 Jun 15; Vol. 14, pp. e21433. Date of Electronic Publication: 2026 Jun 15 (Print Publication: 2026). |
| Τύπος έκδοσης: | Journal Article |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: PeerJ Inc Country of Publication: United States NLM ID: 101603425 Publication Model: eCollection Cited Medium: Internet ISSN: 2167-8359 (Electronic) Linking ISSN: 21678359 NLM ISO Abbreviation: PeerJ Subsets: MEDLINE |
| Imprint Name(s): | Original Publication: Corte Madera, CA : PeerJ Inc. |
| Ιατρικοί όροι (MeSH): | Thoracica*/anatomy & histology , Thoracica*/classification , Fossils*, Animals ; Colombia ; Ecosystem ; Paleontology |
| Περίληψη: | Ichnofossils preserved in hard substrates are sometimes the only evidence documenting the presence of certain groups of organisms within past ecosystems. The Early Cretaceous marine ecosystems of northwestern Gondwana (present-day Colombia) were highly diverse, comprising vertebrates, invertebrates and microorganisms. Despite this paleobiodiversity, no fossils or ichnofossils of barnacles (Cirripedia) have previously been reported from this region of South America. Here, I describe the first record of barnacle sclerobionts from the Early Cretaceous (Valanginian) of northwestern Gondwana, represented by 132 borings tentatively assigned to cf. Rogerella, preserved on a complete shell of the gryphaeid Ceratostreon boussingaulti, from the Rosa Blanca Formation in Zapatoca, Colombia. The borings exhibit an inverted, inequilateral pyramidal chamber in three dimensions, triangular in transverse section, with the deepest point located in the posterior part of the chamber. This discovery underscores the significance of detailed ichnological analyses for reconstructing the complexity of ancient benthic interactions and elucidating the ecological strategies of sessile suspension feeders through geologic time. (© 2026 Cadena.) |
| Competing Interests: | The author declares that they have no competing interests. |
| Contributed Indexing: | Keywords: Colombia; Ichnofossils; Rosa blanca formation; South America; Valaginian |
| Entry Date(s): | Date Created: 20260622 Date Completed: 20260622 Latest Revision: 20260622 |
| Update Code: | 20260622 |
| PubMed Central ID: | PMC13277627 |
| DOI: | 10.7717/peerj.21433 |
| PMID: | 42328671 |
| Βάση Δεδομένων: | MEDLINE |
| ISSN: | 2167-8359 |
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| DOI: | 10.7717/peerj.21433 |