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Department of Invertebrate Zoology

Image of "stalked jellyfish"

This "stalked jellyfish" lives on marine algae off the coast of California and represents a new species of Stauromedusae, Haliclystus californiensis Kahn et al., 2010 (Holotype USNM 1106657; Paratypes USNM 1139484, 1139485, 1106654).


Allen G. Collins Zoologist, NMFS, NOAA
National Systematics Lab

Lawley, Jonathan W., Ames, Cheryl Lewis, Bentlage, Bastian, Yanagihara, Angel, Goodwill, Roger, Kayal, Ehsan, Hurwitz, Kikiana and Collins, Allen G. 2016. Box Jellyfish Alatina alata Has a Circumtropical Distribution. The Biological bulletin, 231(2): 152-169. doi:10.1086/690095

Kayal, Ehsan, Bentlage, Bastian and Collins, Allen G. 2016. Insights into the transcriptional and translational mechanisms of linear organellar chromosomes in the box jellyfish Alatina alata (Cnidaria: Medusozoa: Cubozoa). RNA biology, : 1-11. doi:10.1080/15476286.2016.1194161

Pyataeva, Sofia V., Hopcroft, Russell R., Lindsay, Dhugal J. and Collins, Allen G. 2016. DNA barcodes unite two problematic taxa: the meiobenthic Boreohydra simplex is a life-cycle stage of Plotocnide borealis (Hydrozoa: Aplanulata). Zootaxa, 4150(1): 85 doi:10.11646/zootaxa.4150.1.5

Lasley, Robert M., Ames, Cheryl Lewis, Erdman, Robert, Parks, Sheri and Collins, Allen G. 2016. First record of the box jellyfish Tripedalia cystophora (Cnidaria: Cubozoa: Tripedaliidae) in the Gulf of Mexico. Proceedings of the Biological Society of Washington, 129(1): 164-172. doi:10.2988/0006-324X-129.Q2.164

Ames, Cheryl Lewis, Ryan, Joseph F., Bely, Alexandra E., Cartwright, Paulyn and Collins, Allen G. 2016. A new transcriptome and transcriptome profiling of adult and larval tissue in the box jellyfish Alatina alata: an emerging model for studying venom, vision and sex. BMC Genomics, 17(1): 650 doi:10.1186/s12864-016-2944-3

Miranda, Lucília S., Hirano, Yayoi M., Mills, Claudia E., Falconer, Audrey, Fenwick, David, Marques, Antonio C. and Collins, Allen G. 2016. Systematics of stalked jellyfishes (Cnidaria: Staurozoa). PeerJ, 4 doi:10.7717/peerj.1951

Ames, Cheryl Lewis, Ryan, Joseph F., Bely, Alexandra E., Cartwright, Paulyn and Collins, Allen G. 2016. Erratum to: A new transcriptome and transcriptome profiling of adult and larval tissue in the box jellyfish Alatina alata: an emerging model for studying venom, vision and sex. BMC Genomics, 17(1): 980 doi:10.1186/s12864-016-3305-y

Kayal, Ehsan, Bentlage, Bastian, Cartwright, Paulyn, Yanagihara, Angel A., Lindsay, Dhugal J., Hopcroft, Russell R. and Collins, Allen G. 2015. Phylogenetic analysis of higher-level relationships within Hydroidolina (Cnidaria: Hydrozoa) using mitochondrial genome data and insight into their mitochondrial transcription. PeerJ, 3 doi:10.7717/peerj.1403

Zapata, Felipe, Goetz, Freya E., Smith, Stephen A., Howison, Mark, Siebert, Stefan, Church, Samuel H., Sanders, Steven M., Ames, Cheryl Lewis, McFadden, Catherine S., France, Scott C., Daly, Marymegan, Collins, Allen G., Haddock, Steven H. D., Dunn, Casey W. and Cartwright, Paulyn 2015. Phylogenomic Analyses Support Traditional Relationships within Cnidaria. PloS One, 10(10) doi:10.1371/journal.pone.0139068

Goodheart, Jessica A., Bazinet, Adam L., Collins, Allen G. and Cummings, Michael P. 2015. Relationships within Cladobranchia (Gastropoda: Nudibranchia) based on RNA-Seq data: an initial investigation. Royal Society Open Science, 2(9): 150196 doi:10.1098/rsos.150196

Lindsay, Dhugal J., Grossmann, Mary M., Nishikawa, Jun, Bentlage, Bastian and Collins, Allen G. 2015. DNA Barcoding of Pelagic Cnidarians: Current Status and Future Prospects. Bulletin- Plankton Society of Japan, 62(1): 39-43.

Miranda, L. S., Collins, Allen G. and Marques, A. C. 2015. Is Haootia quadriformis related to extant Staurozoa (Cnidaria)? Evidence from the muscular system reconsidered. Proceedings of the Royal Society B: Biological Sciences, 282(1803) doi:10.1098/rspb.2014.2396

Bracken-Grissom, Heather, Collins, Allen G., Collins, Timothy, Crandall, Keith, Distel, Daniel, Dunn, Casey, Giribet, Gonzalo, Haddock, Steven, Knowlton, Nancy, Martindale, Mark, Medina, Monica, Messing, Charles, O'Brien, Stephen J., Paulay, Gustav, Putnam, Nicolas, Ravasi, Timothy, Rouse, Greg W., Ryan, Joseph F., Schulze, Anja, Worheide, Gert, Adamska, Maja, Bailly, Xavier, Breinholt, Jesse, Browne, William E., Diaz, M. Christina, et al 2014. The Global Invertebrate Genomics Alliance (GIGA): Developing Community Resources to Study Diverse Invertebrate Genomes. Journal of Heredity, 105(1): 1-18. doi:10.1093/jhered/est084

Grossmann, Mary M., Collins, Allen G. and Lindsay, Dhugal J. 2014. Description of the eudoxid stages of Lensia havock and Lensia leloupi (Cnidaria: Siphonophora: Calycophorae), with a review of all known Lensia eudoxid bracts. Systematics and Biodiversity, 12(2): 163-180. doi:10.1080/14772000.2014.902867

Rocha, L. A., Aleixo, A., Allen, G., Almeda, F., Baldwin, Carole C., Barclay, M. V. L., Bates, J. M., Bauer, A. M., Benzoni, F., Berns, C. M., Berumen, M. L., Blackburn, D. C., Blum, S., Bolanos, F., Bowie, R. C. K., Britz, R., Brown, R. M., Cadena, C. D., Carpenter, K., Ceriaco, L. M., Chakrabarty, P., Chaves, G., Choat, J. H., Clements, K. D., Collette, Bruce B., et al 2014. Specimen collection: An essential tool. Science, 344(6186): 814-815. doi:10.1126/science.344.6186.814

Klautau, Michelle, Azevedo, Fernanda, Cóndor-Luján, Báslavi, Rapp, Hans Tore, Collins, Allen G. and Russo, Claudia A. 2013. A molecular phylogeny for the order Clathrinida rekindles and refines Haeckel's taxonomic proposal for calcareous sponges. Integrative & Comparative Biology, 53(3): 447-461. doi:10.1093/icb/ict039

Lewis, Cheryl, Bentlage, Bastian, Yanagihara, Angel, Gillan, William, Blerk, Johan Van, Keil, Daniel P., Bely, Alexandra E. and Collins, Allen G. 2013. Redescription of Alatina alata (Reynaud, 1830) (Cnidaria: Cubozoa) from Bonaire, Dutch Caribbean. Zootaxa, 3737(4): 473-487. doi:10.11646/zootaxa.3737.4.8

Marques, Antonio C., Maronna, Maximiliano M. and Collins, Allen G. 2013. Putting GenBank Data on the Map. Science, 341(6152): 1341 doi:10.1126/science.341.6152.1341-a

Hajdu, Eduardo, de Paula, Thiago S., Redmond, Niamh E., Cosme, Bruno, Collins, Allen G. and Lôbo-Hajdu, Gisele 2013. Mycalina: Another Crack in the Poecilosclerida Framework. Integrative and Comparative Biology, 53(3): 462-472. doi:10.1093/icb/ict074

Diaz, Maria C., Thacker, Robert W., Redmond, Niamh E., Matterson, Kenan O. and Collins, Allen G. 2013. Phylogenetic Novelties and Geographic Anomalies among Tropical Verongida. Integrative & Comparative Biology, 53(3): 482-494. doi:10.1093/icb/ict033

Hill, Malcolm S., Hill, April L., Lopez, Jose, Peterson, Kevin J., Pomponi, Shirley, Diaz, Maria C., Thacker, Robert W., Adamska, Maja, Boury-Esnault, Nicole, Cárdenas, Paco, Chaves-Fonnegra, Andia, Danka, Elizabeth, De Laine, Bre-Onna, Formica, Dawn, Hajdu, Eduardo, Lobo-Hajdu, Gisele, Klontz, Sarah, Morrow, Christine C., Patel, Jignasa, Picton, Bernard, Pisani, Davide, Pohlmann, Deborah, Redmond, Niamh E., Reed, John, Richey, Stacy, et al 2013. Reconstruction of Family-Level Phylogenetic Relationships within Demospongiae (Porifera) Using Nuclear Encoded Housekeeping Genes. PLoS ONE, 8(1): e50437 doi:10.1371/journal.pone.0050437

Nawrocki, Annalise M., Collins, Allen G., Hirano, Yayoi M., Schuchert, Peter and Cartwright, Paulyn 2013. Phylogenetic placement of Hydra and relationships within Aplanulata (Cnidaria: Hydrozoa). Molecular Phylogenetics and Evolution, 67(1): 60-71. doi:10.1016/j.ympev.2012.12.016

Redmond, Niamh E., Morrow, Christine C., Thacker, Robert W., Diaz, Maria C., Boury-Esnault, N., Cárdenas, P., Hajdu, E., Lôbo-Hajdu, G., Picton, B. E., Pomponi, S. A., Kayal, E. and Collins, Allen G. 2013. Phylogeny and Systematics of Demospongiae in Light of New Small-Subunit Ribosomal DNA (18S) Sequences. Integrative & Comparative Biology, 53(3): 388-415. doi:10.1093/icb/ict078

Harrison, Genelle F., Kim, Kiho and Collins, Allen G. 2013. Low genetic diversity of the putatively introduced, brackish water hydrozoan, Blackfordia virginica (Leptothecata: Blackfordiidae), throughout the United States, with a new record for Lake Pontchartrain, Louisiana. Proceedings of the Biological Society of Washington, 126(2): 91-102. doi:10.2988/0006-324X-126.2.91

Thacker, Robert W., Hill, April L., Hill, Malcom S., Redmond, Niamh E., Collins, Allen G., Morrow, Christine C., Spicer, Lori, Carmack, Cheryl A., Zappe, Megan E., Pohlmann, Deborah, Hall, Chelsea, Diaz, Maria C. and Bangalore, PurushothamV 2013. Nearly Complete 28S rRNA Gene Sequences Confirm New Hypotheses of Sponge Evolution. Integrative & Comparative Biology, 53(3): 373-387. doi:10.1093/icb/ict071

Morrow, Christine C., Redmond, Niamh E., Picton, Bernard E., Thacker, Robert W., Collins, Allen G., Maggs, Christine A., Sigwart, Julia D. and Allcock, A. Louise 2013. Molecular Phylogenies Support Homoplasy of Multiple Morphological Characters Used in the Taxonomy of Heteroscleromorpha (Porifera: Demospongiae). Integrative & Comparative Biology, 53(3): 428-446. doi:10.1093/icb/ict065

Kayal, Ehsan, Roure, Béatrice, Philippe, Hervé, Collins, Allen G. and Lavrov, Dennis V. 2013. Cnidarian phylogenetic relationships as revealed by mitogenomics. BMC Evolutionary Biology, 13: 5 doi:10.1186/1471-2148-13-5

Appeltans, Ward, Ahyong, Shane T, Anderson, Gary, Angel, Martin V, Artois, Tom, Bailly, Nicolas, Bamber, Roger, Barber, Anthony, Bartsch, Ilse, Berta, Annalisa, Blazewicz-Paszkowycz, Magdalena, Bock, Phil, Boxshall, Geoff, Boyko, Christopher B, Brandão, Simone Nunes, Bray, Rod A, Bruce, Niel L, Cairns, Stephen D., Chan, Tin-Yam, Cheng, Lanna, Collins, Allen G, Cribb, Thomas, Curini-Galletti, Marco, Dahdouh-Guebas, Farid, Davie, Peter J F., et al 2012. The Magnitude of Global Marine Species Diversity. Current Biology, 22(23): 2189-2202. doi:10.1016/j.cub.2012.09.036

Weigt, Lee A., Driskell, Amy C., Ormos, Andrea, Meyer, Christopher P. and Collins, Allen G. 2012. Introduction to animal DNA barcoding protocols. In: DNA Barcodes: Methods and Protocols.(Methods in molecular biology) pp.11-16.

Kayal, Ehsan, Bentlage, Bastian, Collins, Allen G., Kayal, Mohsen, Pirro, Stacy and Lavrov, Dennis V. 2012. Evolution of Linear Mitochondrial Genomes in Medusozoan Cnidarians. Genome Biology and Evolution, 4(1): 1-12. doi:10.1093/gbe/evr123

Dohrmann, Martin, Vargas, Sergio, Janussen, Dorte, Collins, Allen G. and Wörheide, Gert 2012. Molecular paleobiology of early-branching animals: integrating DNA and fossils elucidates the evolutionary history of hexactinellid sponges. Paleobiology, 39(1): 95-108. doi:10.1666/0094-8373-39.1.95

Smith, David R., Kayal, Ehsan, Yanagihara, Angel A., Collins, Allen G., Pirro, Stacy and Keeling, Patrick J. 2012. First Complete Mitochondrial Genome Sequence from a Box Jellyfish Reveals a Highly Fragmented Linear Architecture and Insights into Telomere Evolution. Genome Biology and Evolution, 4(1): 52-58. doi:10.1093/gbe/evr127

Lewis, Cheryl, Migita, Masao, Hashimoto, Hiroshi and Collins, Allen G. 2012. On the occurrence of freshwater jellyfish in Japan 1928–2011: eighty-three years of records of mamizu kurage (Limnomedusae, Olindiidae). Proceedings of the Biological Society of Washington, 125(2): 165-179. doi:10.2988/11-31.1

Orellana, Evan R. and Collins, Allen G. 2011. First report of the box jellyfish Tripedalia cystophora (Cubozoa: Tripedaliidae) in the continental USA, from Lake Wyman, Boca Raton, Florida. Marine Biodiversity Records, 4: e54 doi:10.1017/S1755267211000133

Collins, Allen G., Bentlage, Bastian, Gillan, William (Bud), Lynn, Tara H., Morandini, Andre C. and Marques, Antonio C. 2011. Naming the Bonaire banded box jelly, Tamoya ohboya, n. sp. (Cnidaria: Cubozoa: Carybdeida: Tamoyidae). Zootaxa, 2753: 53-68.

Bayha, Keith M., Dawson, Michael N., Collins, Allen G., Barbeitos, Marcos S. and Haddock, Steven H. D. 2010. Evolutionary Relationships Among Scyphozoan Jellyfish Families Based on Complete Taxon Sampling and Phylogenetic Analyses of 18S and 28S Ribosomal DNA. Integrative and Comparative Biology, 50(3): 436-455. doi:10.1093/icb/icq074

Bentlage, Bastian, Cartwright, Paulyn, Yanagihara, Angel A., Lewis, Cheryl, Richards, Gemma S. and Collins, Allen G. 2010. Evolution of box jellyfish (Cnidaria: Cubozoa), a group of highly toxic invertebrates. Proceedings of the Royal Society B: Biological Sciences, 277(1680): 493-501. doi:10.1098/rspb.2009.1707

Miranda, Lucilia S., Collins, Allen G. and Marques, Antonio C. 2010. Molecules Clarify a Cnidarian Life Cycle - The "Hydrozoan'' Microhydrula limopsicola Is an Early Life Stage of the Staurozoan Haliclystus antarcticus. Plos One, 5(4): e10182 doi:10.1371/journal.pone.0010182

Kahn, Amanda S., Matsumoto, George I., Hirano, Yayoi M. and Collins, Allen G. 2010. Haliclystus californiensis, a "new" species of stauromedusa (Cnidaria: Staurozoa) from the northeast Pacific, with a key to the species of Haliclystus. Zootaxa, 2518: 49-59.

Dohrmann, M., Collins, Allen G. and Woerheide, G. 2009. New insights into the phylogeny of glass sponges (Porifera, Hexactinellida): Monophyly of Lyssacinosida and Euplectellinae, and the phylogenetic position of Euretidae. Molecular phylogenetics and evolution, 52: 257-262.

Jankowski, T., Collins, Allen G. and Campbell, R. 2008. Global diversity of inland water cnidarians. Hydrobiologia, 595: 35-40.

Dohrmann, Martin, Janussen, Dorte, Reitner, Joachim, Collins, Allen G. and Wörheide, Gert 2008. Phylogeny and Evolution of Glass Sponges (Porifera, Hexactinellida). Systematic Biology, 57(3): 388-405. doi:10.1080/10635150802161088

Lewis, Cheryl, Kubota, Shin, Migotto, Alvaro E. and Collins, Allen G. 2008. Sexually Dimorphic Cubomedusa Carybdea sivickisi (Cnidaria: Cubozoa) in Seto, Wakayama, Japan. Publications of the Seto Marine Biological Laboratory, 40(5/6): 1-8.

Tabachnick, K. R. and Collins, Allen G. 2008. Glass sponges (Porifera, Hexactinellida) of the northern Mid-Atlantic Ridge. Marine Biology Research, 4: 25-47.

Kilvington, C. C., Collins, Allen G., Kosevich, I. A., Pyataeva, S. V. and Robson, E. A. 2008. Protohydra leuckarti near Plymouth. Journal of the Marine Biological Association of the United Kingdom, 88: 1555-1557.

Cartwright, Paulyn, Evans, Nathaniel M., Dunn, Casey W., Marques, Antonio C., Miglietta, Maria Pia, Schuchert, Peter and Collins, Allen G. 2008. Phylogenetics of Hydroidolina (Hydrozoa: Cnidaria). Journal of the Marine Biological Association of the United Kingdom, 88: 1663-1672.

Collins, Allen G., Bentlage, Bastian, Lindner, Alberto, Lindsay, Dhugal, Haddock, Steven H. D., Jarms, Gerhard, Norenburg, Jon L., Jankowski, Thomas and Cartwright, Paulyn 2008. Phylogenetics of Trachylina (Cnidaria: Hydrozoa) with new insights on the evolution of some problematical taxa. Journal of the Marine Biological Association of the United Kingdom, 88: 1673-1685.

Fukami, Hironobu, Chen, Chaolun Allen, Budd, Ann F., Collins, Allen G., Wallace, Carden, Chuang, Yao-Yang, Chen, Chienhsun, Dai, Chang-Feng, Iwao, Kenji, Sheppard, Charles and Knowlton, Nancy 2008. Mitochondrial and Nuclear Genes Suggest that Stony Corals Are Monophyletic but Most Families of Stony Corals Are Not (Order Scleractinia, Class Anthozoa, Phylum Cnidaria). PLoS ONE, 3(9): e3222 doi:10.1371/journal.pone.0003222

Evans, Nathaniel M., Lindner, A., Raikova, E. V., Collins, Allen G. and Cartwright, Paulyn 2008. Phylogenetic placement of the enigmatic parasite, Polypodium hydriforme, within the Phylum Cnidaria. BMC Evolutionary Biology, 8: 139

Cartwright, Paulyn and Collins, Allen G. 2007. Fossils and phylogenies: integrating multiple lines of evidence to investigate the origin of early major metazoan lineages. Integrative and Comparative Biology, 47(5): 744-751. doi:10.1093/icb/icm071

Daly, M., Brugler, M. R., Cartwright, Paulyn, Collins, Allen G., Dawson, M. N., Fautin, D. G., France, S. C., McFadden, C. S., Opresko, Dennis M., Rodriguez, E., Roman, S. L. and Stake, J. L. 2007. The phylum Cnidaria: A review of phylogenetic patterns and diversity 300 years after Linnaeus. Zootaxa, 1668: 127-182.

Cartwright, Paulyn, Halgedahl, Susan L., Hendricks, Jonathan R., Jarrard, Richard D., Marques, Antonio C., Collins, Allen G. and Lieberman, Bruce S. 2007. Exceptionally Preserved Jellyfishes from the Middle Cambrian. PLoS ONE, 2(10): e1121

Collins, Allen G., Bentlage, Bastian, Matsumoto, G. I., Haddock, H. D., Osborn, Karen J. and Schierwater, B. 2006. Solution to the phylogenetic enigma of Tetraplatia, a worm-shaped cnidarian. Biology Letters, 2: 120-124.

van Iten, H., Moraes Leme, J. De, Simoes, M. G., Marques, A. C. and Collins, Allen G. 2006. Reassessment of the phylogenetic position of conulariids (?Ediacaran-Triassic) within the subphylum Medusozoa (phylum Cnidaria). Journal of Systematic Palaeontology, 4(2): 109-118. doi:10.1017/S1477201905001793

Lutz, Richard A., Collins, Allen G., Annis, Eric R., Reed, Andrew J., Bennett, Kyle F., Halanych, Kenneth M. and Vrijenhoek, Robert C. 2006. Stauromedusan populations inhabiting deep-sea hydrothermal vents along the southern East Pacific Rise. Cahiers de Biologie Marine, 47: 409-414.

Medina, M., Collins, Allen G., Takaoka, T. L., Kuehl, J. V. and Boore, J. L. 2006. Naked Corals: Skeleton Loss in Scleractinia. Proceedings of the National Academy of Sciences of the United States of America, 103: 9096-9100.

Collins, Allen G., Schuchert, P., Marques, A. C., Jankowski, T., Medina, M. and Schierwater, B. 2006. Medusozoan Phylogeny and Character Evolution Clarified by New Large and Small Subunit rDNA Data and an Assessment of the Utility of Phylogenetic Mixture Models. Systematic Biology, 55(1): 97-115. doi:10.1080/10635150500433615

Tomassetti, P., Voigt, O., Collins, Allen G., Porrello, S., Pearse, V. B. and Schierwater, B. 2005. Placozoans (Trichoplax adhaerens Schulze, 1883) in the Mediterranean Sea. Meiofauna Marina, 14: 5-7.

Collins, Allen G., Winkelmann, S., Hadrys, H. and Schierwater, B. 2005. Phylogeny of Capitata (Cnidaria, Hydrozoa) and Corynidae in light of mitochondrial 16S rDNA data. Zoologica Scripta, 34: 91-99.

Collins, J. A. and Collins, Allen G. 2005. Systematics as a Hypothesis-Based Science and its Fundamental Role in Understanding Oceans. In: OCEANS, 2005. Proceedings of MTS/IEEE. pp.1395-1402.

Collins, Allen G. and Daly, M. 2005. A new deepwater species of Stauromedusae, Lucernaria janetae (Cnidaria, Staurozoa, Lucernariidae), and a preliminary investigation of stauromedusan phylogeny based on nuclear and mitochondrial rDNA data. Biological Bulletin, 208: 221-230.

Collins, Allen G., Cartwright, Paulyn, McFadden, C. S. and Schierwater, B. 2005. Phylogenetic context and basal metazoan model systems. Integrative and Comparative Biology, 45: 585-594.

Marques, Antonio C. and Collins, Allen G. 2004. Cladistic analysis of Medusozoa and cnidarian evolution. Invertebrate Biology, 123(1): 23-42.

Voigt, O., Collins, Allen G., Pearse, V. B., Pearse, J. S., Hadrys, H. and Schierwater, B. 2004. Placozoa no longer a phylum of one. Current Biology, 14: R944-R945.

Waggoner, Ben and Collins, Allen G. 2004. Reductio ad absurdum: Testing the evolutionary relationships of Ediacaran and Paleozoic problematic fossils using molecular divergence dates. Journal of Paleontology, 78(1): 51-61.

Silberman, Jeffrey D., Collins, Allen G., Gershwin, Lisa-ann, Johnson, Patricia J. and Roger, Andrew J. 2004. Ellobiopsids of the Genus Thalassomyces are Alveolates. Journal of Eukaryotic Microbiology, 51(2): 246-252.

Winkel, Kenneth D., Hawdon, Gabrielle M., Fenner, Peter J., Gershwin, Lisa-Ann, Collins, Allen G. and Tibballs, James 2003. Jellyfish antivenom: Past, Present and Future. Toxin Reviews, 22(1): 115-127.

Roy, Kaustuv, Collins, Allen G., Becker, Bonnie J., Begovic, Emina and Engle, John M. 2003. Anthropogenic impacts and historical decline in body size of rocky intertidal gastropods in southern California. Ecology Letters, 6: 205-211.

Medina, Monica, Collins, Allen G., Taylor, John W., Valentine, James W., Lipps, Jere H., Amaral-Zettler, Linda and Sogin, Mitchell L. 2003. Phylogeny of Opisthokonta and the evolution of multicellularity and complexity in Fungi and Metazoa. Intenrational Journal of Astrobiology, 2(3): 203-211.

Castilla, J. C., Collins, A. G., Meyer, Christopher P., Guinez, R. and Lindberg, D. R. 2002. Recent introduction of the dominant tunicate, Pyura praeputialis (Urochordata, Pyuridae) to Antofagasta, Chile. Molecular ecology, 11: 1579-1584.

Gershwin, Lisa-Ann and Collins, Allen G. 2002. A preliminary phylogeny of Pelagiidae (Cnidaria, Scyphozoa) , with new observations of Chrysaora colorata comb. nov.. Journal of Natural History, 36(2): 127-148. doi:10.1080/00222930010003819

Medina, Monica, Collins, Allen G., Silberman, Jeffrey D. and Sogin, Mitchell L. 2001. Evaluating hypotheses of basal animal phylogeny using complete sequences of large and small subunit rRNA. Proceedings of the National Academy of Sciences of the United States of America, 98(17): 9707-9712.

Collins, Allen G. and Valentine, J. W. 2001. Defining phyla: evolutionary pathways to metazoan body plans. Evolution & Development, 3(6): 432-442.

Hamilton, H., Caballero, S., Collins, Allen G. and Brownell, Robert L., Jr. 2001. Evolution of river dolphins. Proceedings of the Royal Society B: Biological Sciences, 268(1466): 549-556.

Collins, Allen G., Lipps, J. H. and Valentine, J. W. 2000. Modern mucociliary creeping trails and the bodyplans of Neoproterozoic trace-makers. Paleobiology, 26(1): 47-55.

Collins, Allen G. 2000. Towards understanding the phylogenetic history of Hydrozoa: hypothesis testing with 18S gene sequence data. Scientia Marina, 64(1): 5-22.

Valentine, James W. and Collins, Allen G. 2000. The significance of moulting in Ecdysozoan evolution. Evolution & Development, 2(3): 152-156.

Collins, Allen G. 1999. Molecules and evolutionary history. In: Springer, Dale A. and Scotchmoor, Judith G., Evolution : investigating the evidence. [Pittsburgh, PA]: Paleontological Society,(Paleontological Society Papers) pp.

Collins, Allen G. 1998. Evaluating multiple alternative hypotheses for the origin of Bilateria: an analysis of 18S rRNA molecular evidence. Proceedings of the National Academy of Sciences of the United States of America, 95(26): 15458-15463.

Valentine, James W., Collins, Allen G. and Meyer, Christopher P. 1994. Morphological complexity increase in metazoans. Paleobiology, 20(2): 131-142.

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