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T-bana: Universitetet
Frescativägen 40

Ordinarie öppettider:
Tisdag–fredag 11–17
Lördag–söndag 10–18

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Publications Timothy Topper

Electronic versions of all these publications can be downloaded from http://www.academia.edu/external link

2022

Chen, F., Topper, T.P., Skovsted, C.B., Strotz, L.C., Shen, J. and Zhang, Z., 2022. Cambrian ecological complexities: perspectives from the earliest brachiopod-supported benthic communities in the early Cambrian Guanshan Lagerstätte. Gondwana Research 107: 30-41. https://doi.org/10.1016/j.gr.2022.02.008external link

Li, L., Skovsted, C.B. and Topper, T.P. 2022, Deep origin of the crossed-lamellar microstructure in early Cambrian molluscs. Palaeontology, 65: e12620. https://doi.org/10.1111/pala.12620external link

Li, L., Topper, T.P., Betts, M.J., Dorjnamjaa, D., Altanshagai, G., Enkhbaatar, B., Li, G., & Skovsted, C.B. 2022, Calcitic shells in the aragonite sea of the earliest Cambrian. Geology. doi: https://doi.org/10.1130/G50533.1external link

Liu, F. Skovsted, C. B., Topper, T. P. & Zhang, Z. 2022. Hyolithid-like hyoliths without helens from the early Cambrian of South China, and their implications for the evolution of hyoliths. BMC Ecology and Evolution 22:64. https://doi.org/10.1186/s12862-022-02022-9external link

Topper, T. P., Betts, M. J., Dorjnamjaa, D., Li, G., Li, L., Altanshagai, G., Enkhbaatar, B. & Skovsted, C. B. 2022. Locating the BACE f the Cambrian: Bayan Gol in southwestern Mongolia and global correlation of the Ediacaran-Cambrian boundary. Earth-Science Reviews 229: 104017. https://doi.org/10.1016/j.earscirev.2022.104017external link

2021

Harper, D.A., Stouge, S., Christiansen, J.L., Topper, T.P., Alwmark, C., Richoz, S. and Ahlberg, P., 2021. Early Cambrian brachiopod-dominated shell concentrations from North-East Greenland: Environmental and taphonomic implications. Global and Planetary Change, 204, p.103560. doi.org/10.1016/j.gloplacha.2021.103560external link

Liu, F., Skovsted, C.B., Topper, T.P. & Zhang, Z.-F. 2021. Revision of Triplicatella (Orthothecida, Hyolitha) with preserved digestive tracts from the early Cambrian Chengjiang Lagerstätte, South China. Historical Biology. https://doi.org/10.1080/08912963.2020.1747059external link

Liu, F., Skovsted, C.B., Topper, T.P., & Zhang, Z.-F., 2021. Soft part preservation in hyolithids from the lower Cambrian (Stage 4) Guanshan Biota of South China and its implications. Palaeogeography, Palaeoclimatology, Palaeoecology 562: 110079. https://doi.org/10.1016/j.palaeo.2020.110079external link

McLoughlin, S., Vajda, V., Topper, T. P., Crowley , J. L., Liu, F., Johansson, O. & Skovsted, C. B., 2021. Trace fossils, algae, invertebrate remains and new U-Pb detrital zircon geochronology from the lower Cambrian Torneträsk Formation, northern Sweden. GFF, 143 (2-3): 103-133. https://doi.org/10.1080/11035897.2021.1939775external link

Skovsted, C.B., Topper, T.P., McLoughlin, S., Johansson, O., Liu, F. & Vajda, V. 2021. First discovery of Small Shelly Fossils and new occurrences of brachiopods and trilobites from the early Cambrian (Stage 4) of the Swedish Caledonides, Lappland. GFF. https://doi.org/10.1080/11035897.2021.1895303external link

Zhang, Z., Topper, T.P., Chen, Y., Strotz, L.C., Chen, F., Holmer, L.E., Brock, G.A. and Zhang, Z., 2021. Go large or go conical: allometric trajectory of an early Cambrian acrotretide brachiopod. Palaeontology, 64(5): 727-741. https://doi.org/10.1111/pala.12568external link

2020

Claybourn, T.M., Skovsted, C.B., Holmer, L.E., Pan, B., Myrow, P.M., Topper, T.P., & Brock, G.A. 2020. Brachiopods from the Byrd Group (Cambrian Series 2, Stage 4), Central Transantarctic Mountains, East Antarctica. Papers in Palaeontology. doi: 10.1002/spp2.1295external link

Liu, F., Skovsted, C.B., Topper, T.P., Zhang, Z.-F. & Shu, D., 2020. Are hyoliths Palaeozoic lophophorates? National Science Review, 7(2): 453-469. https://academic.oup.com/nsr/advance-article/doi/10.1093/nsr/nwz161/5606729?searchresult=1external link

Pan, B., Skovsted, C.B., Brock, G.A. Topper, T.P., Holmer, L.E., Li, L. & Li, G., 2020. Early Cambrian organophosphatic brachiopods from the Xinji Formation, Shuiyu section, North China. Palaeoworld 29: 512-533. https://doi.org/10.1016/j.palwor.2019.07.001external link

Topper, T.P., Guo, J., Clausen, S., Skovsted, C. & Zhang, Z., 2020. Reply to ‘Re-evaluating the phylogenetic position of the enigmatic early Cambrian deuterostome Yanjiahella’. Nature Communications 11, 1287. https://doi.org/10.1038/s41467-020-14922-9external link

Zhang, Z., Strotz, L.C., Topper, T.P., Chen, F., Chen, Y., Liang, Y., Zhang, Z., Skovsted, C.B. and Brock, G.A., 2020. An encrusting kleptoparasite-host interaction from the early Cambrian. Nature Communications, 11(1): 1-7. https://doi.org/10.1038/s41467-020-16332-3external link

2019

Claybourn, T. M., Jacquet, S. M., Skovsted, C. B., Topper, T. P., Holmer, L. E. & Brock, G. A., 2019. Mollusks from the upper Shackleton Limestone (Cambrian Series 2), Central Transantarctic Mountains, East Antarctica. Journal of Paleontology 93: 437-459. https://doi.org/10.1017/jpa.2018.84external link

Topper, T. P., Guo, J., Clausen, S., Skovsted, C. B. & Zhang, Z. 2019. A stem group echinoderm from the basal Cambrian of China and the origins of Ambulacraria. Nature communications 10: 1366. https://www.nature.com/articles/s41467-019-09059-3external link

2018

Topper, T.P., Greco, F., Hofmann, A., Beeby, A. & Harper, D.A.T. 2018. Characterization of kerogenous films and taphonomic pathways of the Sirius Passet Lagerstätte, Greenland. Geology 46: 359-362.

Pan, B., Topper, T.P., Skovsted, C.B., Miao, L. & Li, G. 2018. Occurrence of Microdictyon from the lower Cambrian Xinji Formaiton along the southern margin of the North China Platform. Journal of Paleontology 92: 59-70.

Pan, B., Brock, G.A., Skovsted, C.B., Betts, M.J., Topper, T.P. & Li, G.-X. Paterimitra pyramidalis Laurie, 1986, the first tommotiid discovered from the early Cambrian of North China. Gondwana Research 63: 179–185.

Holmer, L.E., Zhang, Z., Topper, T.P., Popov, L.E. & Claybourn, T. 2018. The attachment strategies of Cambrian kutorginate brachiopods – the curious case of two pedicle openings and their phylogenetic significance. Journal of Paleontology 92: 33-39.

Skovsted, C.B. & Topper, T.P. 2018. Mobergellans from the early Cambrian of Greenland and Labrador – new morphological details and implications for the functional morphology of mobergellans. Journal of Paleontology 92: 71-79.

Betts, M.J., Paterson, J.R., Jacquet, S.M., Andrew A.S., Hall, P.A., Jago, J.B., Jagodzinski, E.A., Preiss, W.V., Crowley, J.L., Brougham, T., Mathewson, C.P., Garcia-Bellido, D.C., Topper, T.P., Skovsted, C.B. & Brock, G.A. 2018. Early Cambrian chronostratigraphy and geochronolgy of South Australia. Earth Science Reviews 185: 498-543. doi: 10.1016/j.earscirev.2018.06.005external link

2017

Topper, T.P., Strotz, L., Skovsted, C. & Holmer, L. 2017. Do brachiopods show substrate-related phenotypic variation? A case study from the Burgess Shale. Palaeontology 2: 269-279.

Betts, Marissa J., Paterson, J.R. Jago, J.B., Jacquet, S.M., Skovsted, C.B., Topper, T.P. & Brock, G.A., 2017. Global correlation of the early Cambrian of South Australia. Shelly fauna of the Dailyatia odyssei Zone. Gondwana Research 46: 240-279.

Topper, T.P., Zhang, Z., Gutiérrez-Marco, J.C. & Harper, D.A.T. 2017. The dawn of a dynasty: life strategies of Cambrian and Ordovician brachiopods. Lethaia.

Mao, Y-Q, Zhao, Y-L, Wang, C-W. & Topper, T.P. 2017. A fresh look at Nisusia Walcott, 1905 from the Cambrian Kaili Formation in Guizhou. Palaeoworld 26: 12-24.

Jacquet, S.M., Brougham, T., Skovsted, C.B., Jago, J.B., Laurie, J. R., Betts, M. J., Topper, T.P. & Brock, G. A. 2017. Watsonella crosbyi from the lower Cambrian (Terreneuvian, Stage 2) Normanville Group in South Australia. Geological Magazine 154:1088-1104. DOI: https://doi.org/10.1017/S0016756816000704external link

2016

Betts, M. J., Paterson, J.R. Jago, J.B., Jacquet, S.M., Skovsted, C.B., Topper, T.P. & Brock, G.A., 2016. A new lower Cambrian shelly fossil biostratigraphy for South Australia. Reply. Gondwana Research 44: 262-264.

Betts, M. J., Paterson, J.R. Jago, J.B., Jacquet, S.M., Skovsted, C.B., Topper, T.P. & Brock, G.A., 2016. A new lower Cambrian shelly fossil biostratigraphy for South Australia. Gondwana Research 36: 176-208.

Skovsted, C.B., Pan, B., Topper, T.P., Betts, M.J., Li, G. & Brock, G.A., 2016. The operculum and mode of life of the lower Cambrian hyolith Cupitheca from South Australia and North China. Palaeogeography, Palaeoclimatology, Palaeoecology 443: 123-130.

2015

Topper, T.P., Strotz, L., Holmer, L.E. & Caron, J.-B. 2015. Survival on a soft seafloor: life strategies of brachiopods from the Cambrian Burgess Shale. Earth Science Reviews 151: 266-287

Skovsted, C., Betts, M., Topper, T.P. & Brock, G., 2015. The early Cambrian tommotiid genus Dailyatia from South Australia. Memoir of the Association of Australasian Palaeontologists, 48, pp.1-117

Topper, T.P., Strotz, L., Holmer, L.E., Tait, N.N., Zhang, Z. & Caron, J.-B. 2015. Competition and mimicry: the curious case of chaetae in brachiopods from the middle Cambrian Burgess Shale. BMC Evolutionary Biology 15:42. doi:10.1186/s12862-015-0314-4

Skovsted, C.B., Holmer, L.E., Brock, G.A., Holmer, L.E., Topper, T.P. & Larsson, C.M. 2015. The early Cambrian tommotiid Kulparina rostrata from South Australia. Journal of Paleontology 89(6): 920-932.

2014

Topper, T.P., Holmer, L.E. & Caron, J.-B. 2014. Brachiopods hitching a ride: an early case of commensalism in the middle Cambrian Burgess Shale. Scientific Reports 4, doi: 10.1038/srep06704.

Topper, T.P. & Skovsted, C.B. 2014. A new name for a classic Swedish brachiopod, Tallatella undosa (Moberg).GFF14(3), 429-435.

Larsson, C. M., Skovsted, C.B., Brock, G.A., Balthasar, W., Topper, T.P. & Holmer, L.E. 2014. Paterimitra pyramidalis from South Australia: Scleritome, shell structure and evolution of a lower Cambrian stem group brachiopod. Palaeontology  57(2):417-446.

Betts, M. J., Topper, T.P., Valentine, J.L., Skovsted, C.B., Paterson, J.R. & Brock, G.A. 2014. A new early Cambrian bradoriid (Arthropoda) assemblage from the northern Flinders Ranges, South Australia. Gondwana Research 25(1), 420-437. doi: 10.1016/j.gr.2013.05.007

Jakobsen, K.G., Brock, G.A., Nielsen, A.T., Topper, T.P. & Harper, D.A.T. 2014. Middle Ordovician brachiopods from the Stairway Sandstone, Amadeus Basin, central Australia. Alcheringa 38 (2): 190-208.

Smith, P.M., Brock, G.A., Paterson, J.R. & Topper, T.P. 2014. New bradoriid arthropods from the Giles Creek Dolostone (Cambrian Series 3, Stage 5; Templetonian), Amadeus Basin, central Australia. Memoirs of the Association of Australasian Palaeontologists 45: 233-248.

Skovsted, C.B., Topper, T.P. Betts, M.J. & Brock, G.A. 2014. Associated conchs and opercula of Triplicatelladisdoma from the early Cambrian of South Australia. Alcheringa 38 (1): 148-153.

2013

Topper, T.P., Holmer, L.E., Skovsted, C.B., Brock, G.A., Balthasar, U., Larsson, C.M., Petterson Stolk, S. & Harper, D.A.T. 2013. The oldest paterinid brachiopods from the lower Cambrian of South Australia and the tommotiid- brachiopod transition. Acta Palaeontologica Polonica 58: 93-109.

Topper, T.P., Harper, D.A.T. & Brock, G.A. 2013. Ancestral billingsellides and the evolution and phylogenetic relationships of early rhynchonelliform brachiopods. Journal of Systematic Palaeontology 11 (7), 821-833.

Topper, T.P., Skovsted, C.B., Harper, D.A.T. & Ahlberg, P. 2013. A Bradoriid and Brachiopod Dominated Shelly Fauna from the Furongian (Cambrian) of Västergötland, Sweden. Journal of Paleontology 87 (1): 69-83.

Topper, T.P. Skovsted, C.B., Peel, J.S. & Harper, D.A.T. 2013. Moulting in the lobopodian Onychodictyon from the lower Cambrian of Greenland. Lethaia 46(4), 490-495.

Topper, T. P., Harper, D.A.T. & Ahlberg, P. 2013. Reappraisal of the brachiopod, Acrotreta socialis von Seebach, 1865: Clarifying 150 years of confusion. GFF 135, 191-203.

2011

Skovsted, C.B., Brock, G.A. & Topper, T.P. 2011. Sclerite fusion in the problematic early Cambrian spine-like fossil Stoibostrombus from South Australia. Bulletin of Geosciences86 (3), 651-658.

Skovsted, C.B., Brock, G.A. & Topper, T.P. 2012. First occurrence of a new Ocruranus-like helcionelloid mollusc from the lower Cambrian of East Gondwana. Gondwana Research 22, 256-261.

Topper, T.P., Skovsted, C.B., Brock, G.A. & Paterson, J.R 2011. The oldest bivalved arthropods from the early Cambrian of East Gondwana: systematics, biostratigraphy and biogeography. Gondwana Research19 (1), 310-326.

Skovsted, C.B., Brock, G.A., Topper, T.P., Paterson, J.R. & Holmer, L.E. 2011. Scleritome construction, biofacies, biostratigraphy and systematics of the tommotiid Eccentrotheca helenia sp. nov. from the early Cambrian of South Australia. Palaeontology 54 (2), 253-286.

Topper, T.P., Brock, G.A., Skovsted, C.B. & Paterson, J.R. 2011. Microdictyon plates from the lower Cambrian Ajax Limestone of South Australia: Implications for species taxonomy and diversity. Alcheringa35, 427-443.

2010

Topper, T.P., Brock, G.A., Skovsted, C.B. & Paterson, J.R. 2010. Palaeoscolecid scleritome fragments with Hadimopanella plates from the early Cambrian of South Australia. Geological Magazine147 (1), 86-97.

Strotz, L., Mamo, B., Topper, TP & Bagnato, C.2010. The highest  southern latitude record of a living Tridacna gigas. Malacologia 53 (1), 155-160.

2009

Skovsted, C.B., Holmer, L.E., Larsson, C.M., Högström, A.E.S., Brock, G.A., Topper, T.P., Balthasar, U, Petterson Stolk, S. & Paterson, J.P. 2009. The scleritome of Paterimitra: an Early Cambrian stem group brachiopod from South Australia. Proceedings of the Royal Society of London B 276 (1662), 1651-1656.

Topper, T.P., Brock, G.A., Skovsted, C.B., & Paterson, J.P. 2009. Shelly fossils from the lower Cambrian Pararaia bunyerooensis Zone, Flinders Ranges, South Australia. Memoirs of the Association of Australasian Palaeontologists 37, 199-246.

​2007

Topper, T.P., Skovsted, C.B., Brock, G.A. & Paterson, J.R. 2007. New bradoriids from the lower Cambrian Mernmerna Formation, South Australia: systematics, biostratigraphy and biogeography. Memoirs of the Association of Australasian Palaeontologists 33, 67-100.