Cefalópodos

@article{b1889united,
    author = "B., H.",
    title = "United States Geological Survey",
    year = "1889",
    journal = "Nature",
    url = "https://doi.org/10.1038/039484a0",
    doi = "10.1038/039484a0",
    number = "1012",
    openalex = "W4250976795",
    pages = "484-485",
    volume = "39"
}

@article{crossref1895the,
    title = "The Iguanodon-A Bird-Like Reptile",
    year = "1895",
    journal = "Scientific American",
    url = "https://doi.org/10.1038/scientificamerican06221895-16231supp",
    doi = "10.1038/scientificamerican06221895-16231supp",
    number = "1016supp",
    pages = "16231-16232",
    volume = "39"
}

@article{crossref1899united,
    title = "United States Geological Survey",
    year = "1899",
    journal = "Nature",
    url = "https://doi.org/10.1038/060182a0",
    doi = "10.1038/060182a0",
    number = "1547",
    openalex = "W4206146612",
    pages = "182-183",
    volume = "60"
}

@article{crossref1900the,
    title = "The United States geological survey",
    year = "1900",
    journal = "Journal of the Franklin Institute",
    url = "https://doi.org/10.1016/s0016-0032(00)90096-6",
    doi = "10.1016/s0016-0032(00)90096-6",
    number = "5",
    openalex = "W3035512287",
    pages = "326-329",
    volume = "150"
}

@article{crossref1900united,
    title = "United States Geological Survey",
    year = "1900",
    journal = "Nature",
    url = "https://doi.org/10.1038/063215a0",
    doi = "10.1038/063215a0",
    number = "1626",
    openalex = "W4297792332",
    pages = "215-216",
    volume = "63"
}

@article{crossref1913xiunited,
    title = "XI.—United States Geological Survey.",
    year = "1913",
    journal = "Geological Magazine",
    url = "https://doi.org/10.1017/s0016756800126858",
    doi = "10.1017/s0016756800126858",
    number = "7",
    openalex = "W4230037059",
    pages = "321-322",
    volume = "10"
}

@article{wright1949the8,
    author = "Wright, C. W. and Wright, E. V",
    title = "The Cretaceous ammonite genera Discohoplites and Hyphoplites Spath",
    year = "1949",
    journal = "Geological Society of London Quarterly Journal, v. 104, p. 477-497",
    note = "talkorigins\_source = {true}; raw\_reference = {Wright, C. W., and Wright, E. V., 1949, The Cretaceous ammonite genera Discohoplites and Hyphoplites Spath: Geological Society of London Quarterly Journal, v. 104, p. 477-497.}"
}

@misc{teilharddechardin1950sur6,
    author = "Teilhard de Chardin, P",
    title = "Sur un cas remarqueable d'orthognse de groupe - l'volution des siphnids de Chine",
    year = "1950",
    howpublished = "Colloquium International Centre Natural Research Science, v. 21, p. 169-173",
    note = "talkorigins\_source = {true}; raw\_reference = {Teilhard de Chardin, P., 1950, Sur un cas remarqueable d'orthognse de groupe - l'volution des siphnids de Chine: Colloquium International Centre Natural Research Science, v. 21, p. 169-173.}"
}

@misc{cobban1951scaphitid1,
    author = "Cobban, W. A",
    title = "Scaphitid cephalopods of the Colorado Group, 239 of United States Geological Survey, Professional Paper",
    year = "1951",
    howpublished = "p.1-42",
    note = "talkorigins\_source = {true}; raw\_reference = {Cobban, W. A., 1951, Scaphitid cephalopods of the Colorado Group, 239 of United States Geological Survey, Professional Paper: p.1-42.}"
}

@misc{wenger1957die7,
    author = "Wenger, R",
    title = "Die germanischen Ceratiten",
    year = "1957",
    howpublished = "Palaeontographica, Series A, v. 108, p. 57-129",
    note = "talkorigins\_source = {true}; raw\_reference = {Wenger, R., 1957, Die germanischen Ceratiten: Palaeontographica, Series A, v. 108, p. 57-129.}"
}

@article{doi103133pp355,
    author = "Reeside, John B. and Cobban, W. A.",
    title = "Studies of the Mowry shale (Cretaceous) and contemporary formations in the United States and Canada",
    year = "1960",
    journal = "USGS professional paper",
    url = "https://doi.org/10.3133/pp355",
    doi = "10.3133/pp355",
    openalex = "W1552615549"
}

@misc{cobban1964the2,
    author = "Cobban, W. A",
    title = "The Late Cretaceous cephalopod Haresiceras Reeside and its possible origin, 454-I of United States Geological Survey, Professional Paper",
    year = "1964",
    howpublished = "p. I1-I21",
    note = "talkorigins\_source = {true}; raw\_reference = {Cobban, W. A., 1964, The Late Cretaceous cephalopod Haresiceras Reeside and its possible origin, 454-I of United States Geological Survey, Professional Paper: p. I1-I21.}"
}

@misc{teichert1964actinoceratoidea4,
    author = "Teichert, C",
    title = "Actinoceratoidea",
    year = "1964",
    howpublished = "p. K190-K216, in Moore, R. C., ed., Treatise on Invertebrate Paleontology, Part K: p. K1-K519",
    note = "talkorigins\_source = {true}; raw\_reference = {Teichert, C., 1964, Actinoceratoidea: p. K190-K216, in Moore, R. C., ed., Treatise on Invertebrate Paleontology, Part K: p. K1-K519.}"
}

@misc{teichert1964nautiloideadiscosorida5,
    author = "Teichert, C",
    title = "Nautiloidea-Discosorida",
    year = "1964",
    howpublished = "p. K320-K342, in Moore, R. C., ed., Treatise on Invertebrate Paleontology, Part K: p. K1-K519",
    note = "talkorigins\_source = {true}; raw\_reference = {Teichert, C., 1964, Nautiloidea-Discosorida: p. K320-K342, in Moore, R. C., ed., Treatise on Invertebrate Paleontology, Part K: p. K1-K519.}"
}

@misc{crossref1978the,
    title = "The Mississippi River Valley alluvial aquifer in Mississippi",
    year = "1978",
    url = "https://doi.org/10.3133/wri78106",
    doi = "10.3133/wri78106",
    openalex = "W2253349364"
}

@misc{kahn1978nautiloid3,
    author = "Kahn, P. G. H. and Pompea, S. M",
    title = "Nautiloid growth and dynamical evolution of the Earth-Moon system",
    year = "1978",
    howpublished = "Nature, v. 275, no. 5681, p. 606-611",
    note = "talkorigins\_source = {true}; raw\_reference = {Kahn, P. G. H., and Pompea, S. M., 1978, Nautiloid growth and dynamical evolution of the Earth-Moon system: Nature, v. 275, no. 5681, p. 606-611.}"
}

@incollection{arnold1984cephalopods,
    author = "ARNOLD, JOHN M.",
    title = "Cephalopods",
    year = "1984",
    booktitle = "Reproduction",
    url = "https://doi.org/10.1016/b978-0-08-092659-9.50013-2",
    doi = "10.1016/b978-0-08-092659-9.50013-2",
    pages = "419-454"
}

Los amonites pseudoceratíticos de la familia Engonoceratidae son comúnmente locales en la lutita Mowry en las partes central y norte del Interior Occidental de Estados Unidos. La mayoría de los ejemplares provienen de especímenes aplastados y no determinados, pero algunas colecciones ocasionales de concreciones tienen material bien conservado y sin aplastar. Metengonoceras aspenanum (Rees:le y Weymouth) se revisa sobre la base de especímenes no aplastados de una concreción en la zona de Neogastroplites americanus en la lutita de Colorado en el condado de Wheatland, Montana. Metengonoceras teigenense, n. sp., se describe a partir de abundante material de una concreción en la zona de Neogastroplites muelleri del miembro Mowry de la lutita de Colorado del condado de Petroleum, Montana. Metengonoceras aspenanum parece ser más antiguo que M. teigenense, n. sp., y se cree que ambas especies son de edad cenomaniana temprana.

@misc{doi103133b1787l,
    author = "Cobban, W. A. and Kennedy, W. J.",
    title = "The ammonite Metengonoceras Hyatt, 1903, from the Mowry Shale (Cretaceous) of Montana and Wyoming",
    year = "1989",
    abstract = "Pseudoceratitic ammonites of the family Engonoceratidae are locally common in the Mowry Shale in the central and northern parts of the Western Interior of the United States.Most occurrences are of crushed, specifically indeterminate specimens, but occasional collections from concretions have wellpreserved, uncrushed material.Metengonoceras aspenanum (Reesi':le and Weymouth) is revised on the basis of uncrushed speci;.1ensfrom a concretion in the Neogastroplites americanus zone in the Colorado Shale of Wheatland County, Montana.Metengonoceras teigenense, n. sp., is described from abundant material from a concretion in the Neogastroplites muelleri zone!n the Mowry Member of the Colorado Shale of Petroleum County, Montana.Metengonoceras aspenanum seems to be older than M. teigenense, n. sp., and both species are believed to be of early Cenomanian age.",
    url = "https://doi.org/10.3133/b1787l",
    doi = "10.3133/b1787l",
    openalex = "W1565225215",
    references = "doi1026153tsw5050, doi103133m44, doi103133pp355, doi103133pp645, doi104095101339, doi104095106639, doi105281zenodo15987611, doi105479si009638017828601, openalexw2581543316"
}

@incollection{boyle2001cephalopods,
    author = "Boyle, P.",
    title = "Cephalopods",
    year = "2001",
    booktitle = "Encyclopedia of Ocean Sciences",
    url = "https://doi.org/10.1006/rwos.2001.0195",
    doi = "10.1006/rwos.2001.0195",
    pages = "436-442"
}

@misc{barczak2012cephalopods,
    author = "Barczak, Eleanor",
    title = "Cephalopods",
    year = "2012",
    booktitle = "They Eat That?",
    url = "https://doi.org/10.5040/9798216025481-0022",
    doi = "10.5040/9798216025481-0022",
    pages = "44-47"
}

@incollection{crossref2020united,
    title = "United States Geological Survey",
    year = "2020",
    booktitle = "Federal Regulatory Guide",
    url = "https://doi.org/10.4135/9781544377230.n105",
    doi = "10.4135/9781544377230.n105",
    openalex = "W4285713092",
    pages = "834-837"
}

@incollection{crossref2024united,
    title = "United States Geological Survey",
    year = "2024",
    booktitle = "Federal Regulatory Guide",
    url = "https://doi.org/10.4135/9781071920541.n106",
    doi = "10.4135/9781071920541.n106",
    openalex = "W4403866025",
    pages = "866-868"
}

Este trabajo describe una actividad de laboratorio diseñada para ilustrar el fenómeno del quorum sensing bacteriano (QS), un mecanismo de comunicación en comunidades bacterianas. La actividad se centra en la producción de bioluminiscencia regulada por QS de bacterias que viven en simbiosis con cefalópodos. Esta actividad está dirigida a estudiantes de grado en biología, bioquímica u otras ciencias y busca promover su interés en la microbiología y ayudar a los estudiantes a comprender el papel y el mecanismo de QS en los microorganismos mediante un ejemplo visual de interacciones simbióticas entre bacterias y animales. Al mismo tiempo, se espera que los estudiantes desarrollen habilidades de laboratorio en aislamiento bacteriano, obtención de cultivos puros e interpretación de resultados microbiológicos. El trabajo también ofrece referencias y recursos para ayudar a los estudiantes a comprender el tema y a los docentes a evaluar el aprendizaje estudiantil.

@article{doi101093femslefnag050,
    author = "Perez-Etayo, Lara and Salvador-Bescós, Miriam and Aragón-Aranda, Beatriz and Alonso-Urmeneta, Begoña and Moriyón, Ignacio and Conde-Álvarez, Raquel",
    title = "Isolation of luminescent symbiont bacteria from marine cephalopods: a practical activity for the study of bacterial quorum sensing.",
    year = "2026",
    journal = "FEMS microbiology letters",
    abstract = "This work describes a laboratory activity designed to illustrate the phenomenon of bacterial Quorum Sensing (QS), a communication mechanism in bacterial communities. The activity focuses on the bioluminescence production regulated by QS of bacteria that live in symbiosis with cephalopods. This activity targets undergraduate students in biology, biochemistry, or other sciences and aims to promote their interest in microbiology and to help students to understand the role and mechanism of QS in microorganisms by means of a visual example of symbiotic interactions between bacteria and animals. At the same time, students are expected to develop lab skills in bacterial isolation, pure culture obtention and interpretation of microbiological results. The work also provides references and resources to help students understand the subject and teachers assess student learning.",
    url = "https://pubmed.ncbi.nlm.nih.gov/42033317/",
    doi = "10.1093/femsle/fnag050",
    pmid = "42033317"
}

Los venenos animales representan una fuente importante de novedad química, y sin embargo todavía se comprende poco cómo se originan, diversifican y se mantienen los compuestos venenosos a lo largo de escalas profundas de tiempo evolutivo. Esta brecha es especialmente notable en los cefalópodos, que evolucionaron sistemas de veneno usados en depredación, defensa y competencia sexual, pero cuya arquitectura genética del veneno, tipos de células secretoras y glándulas productoras de veneno siguen siendo en gran medida inexplorados. Hasta ahora, solo se ha descrito un único compuesto de veneno de cefalópodo con actividad paralizante confirmada y secuencia primaria conocida, SE-CTX del calamar cuttlefish dorado Acanthosepion esculentum. Aquí, reconstruimos la historia evolutiva, la diversidad molecular y la localización glandular de proteínas similares a SE-CTX mediante un enfoque multimodal. Identificamos 29 homólogos en 20 especies de calamares y pulpos y definimos una familia génica de veneno previamente no reconocida, a la que nombramos deca-ctx, específica de los cefalópodos decápodos (calamares y sepias). Los análisis filogenéticos revelan un origen único de deca-ctx seguido de duplicación génica y diversificación específica de linaje, lo que indica una retención a largo plazo de este gen de veneno. Las estructuras proteicas DECA-CTX predichas se separaron en dos clústeres y 20 unidades únicas, lo que destaca una diversidad estructural potencialmente extensa dentro de una sola familia génica de veneno de cefalópodos. El análisis proteómico confirma la expresión de cinco proteínas DECA-CTX en tres especies. Nuestras imágenes y análisis histológicos localizan la expresión de deca-ctx en células secretoras especializadas dentro de las glándulas de veneno de calamares y sepias. En conjunto, estos resultados reposicionan SE-CTX como parte de un sistema de veneno evolutiva y químicamente diverso, en lugar de una proteína aislada de veneno, y establecen a los cefalópodos como un linaje clave para investigar cómo surgen, se diversifican e integran nuevos genes de veneno en arsenales funcionales.

@article{doi106489820260409716377,
    author = "Naidu, Praveena and Pardos-Blas, José Ramón and Attarde, Saurabh and Achimba, Favour and Hempel, Benjamin-Florian and Clotea, Ioana and Stambouli, Belkes and Kirchhoff, Kim N and Williams, Melvin and McCarthy-Taylor, Jennifer and Gelashvili, Mariam and Sharer, David and Ali, Afeeda and Ueberheide, Beatrix and Albertin, Caroline B and Holford, Mandë",
    title = "Lineage-Specific Venom Gene Expression Shapes Chemical Diversity in Cephalopods.",
    year = "2026",
    journal = "bioRxiv: the preprint server for biology",
    abstract = "Animal venoms represent a major source of chemical novelty, yet how venom compounds originate, diversify, and are maintained across deep evolutionary timescales remains poorly understood. This gap is especially pronounced in cephalopods, which evolved venom systems used in predation, defense, and sexual competition, but whose venom genetic architectures, secretory cell types, and venom-producing glands remain largely unexplored. To date, only a single cephalopod venom compound with confirmed paralytic activity and a known primary sequence, SE-CTX from the golden cuttlefish Acanthosepion esculentum, has been described. Here, we reconstruct the evolutionary history, molecular diversity, and glandular localization of SE-CTX-like proteins using a multimodal approach. We identify 29 homologs across 20 squid and cuttlefish species and define a previously unrecognized venom gene family, which we name deca-ctx, specific to decapodiform cephalopods (squids and cuttlefish). Phylogenetic analyses reveal a single origin of deca-ctx followed by gene duplication and lineage-specific diversification, indicating long-term retention of this venom gene. Predicted DECA-CTX protein structures were separated into two clusters and 20 singletons highlighting potentially extensive structural diversity within a single cephalopod venom gene family. Proteomic analysis confirms expression of five DECA-CTX proteins across three species. Our imaging and histological analyses localize deca-ctx expression to specialized secretory cells within squid and cuttlefish venom glands. Together, these findings reposition SE-CTX as part of an evolutionarily and chemically diverse venom system, rather than an isolated venom protein, and establish cephalopods as a key lineage for investigating how new venom genes arise, diversify, and are integrated into functional venom arsenals.",
    url = "https://pmc.ncbi.nlm.nih.gov/articles/PMC13082056/",
    doi = "10.64898/2026.04.09.716377",
    pmcid = "PMC13082056",
    pmid = "41993419"
}