Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.palaeo.2016.11.009 |
A new tetrapod ichnotaxon from Botucatu Formation, Lower Cretaceous (Neocomian), Brazil, with comments on fossil track preservation on inclined planes and local paleoecology | |
Buck, Pedro Victor1; Ghilardi, Aline Marcele2; Peixoto, Bernardo de C. P. e M.1; dos Reis Fernandes, Luciana Bueno3; Fernandes, Marcelo Adorna3 | |
通讯作者 | Buck, Pedro Victor |
来源期刊 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
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ISSN | 0031-0182 |
EISSN | 1872-616X |
出版年 | 2017 |
卷号 | 466页码:21-37 |
英文摘要 | Botucatu Formation is a paleoerg, worldwide famous for its vertebrate and invertebrate ichnofossils. Among Botucatu Formation tetrapod tracks, ichnogenus Brasilichnium Leonardi, 1981 is well known, being generally attributed to mammaliform trackmakers. In this study a new ichnotaxon is described, Brasilichnium saltatorium isp. nov., characterized by a hopping locomotion in phases. The new ichnotaxon differs from B. elusivum Leonardi, 1981 mainly for the locomotion pattern. It also differs from other ichnotaxa by indicating hopping progression regarding limb morphology and track configuration. Fossil evidence shows B. saltatorium and B. elusivum could be produced by the same organism and represent an alternation in locomotory behavior. Neoichnological experiments were conducted to better understand track preservation and aspects of saltatorial dynamics on inclined planes. It was observed differences in heteropody degree may be related to movement direction and locomotion effort on ascending or descending the incluned plane. Due to extramorphological features, heteropody is more evident when the producer climbs the simulated dune. Also, when the movement is ascendent, lack of handprints can occur. This can be explained by total overlap of pes and manus impression and subsurface hand impression. Comparing with recent organisms living in similar environments and conditions, the Botucatu Formation B. saltatorium producer should have been a generalist organism likely with an omnivorous habit. It may have adopted hopping locomotion to gain velocity when hunting, escaping predators, or to facilitate progression on inclined planes and hot sand. sao Bento quarry represents a paleodesert environment with relative high humidity, where temporary lagoons may have formed during pluvial events. Paleo-rain episode evidence is preserved through raindrops impact craters on local sandstone. Sao Bento quarry paleoenvironment sustained a rich paleofauna, represented by abundant ichnofossils. This local diversity suggests a punctual productive desert paleocommunity with several paleoecological interactions, where Brasilichnium producer was one of the fundamental elements. (C) 2016 Elsevier B.V. All rights reserved. |
英文关键词 | Brasilichnium saltatorium isp nov. Mammaliform footprints Saltatorial locomotion Ichnofossil Parana Basin Paleodesert |
类型 | Article |
语种 | 英语 |
国家 | Brazil |
收录类别 | SCI-E |
WOS记录号 | WOS:000392766900003 |
WOS关键词 | JURASSIC NAVAJO SANDSTONE ; PARANA BASIN ; VERTEBRATE TRACKWAYS ; PRIMARY PRODUCTIVITY ; NAMIB DESERT ; DEPOSITS ; DUNES ; ARARAQUARA ; BEHAVIOR ; ECOLOGY |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology |
WOS研究方向 | Physical Geography ; Geology ; Paleontology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/201343 |
作者单位 | 1.Univ Fed Sao Carlos, Ctr Ciencias Biol & Saude, Programa Pos Grad Ecol & Recursos Nat, Rodovia Washington Luis,Km 235-SP-310, BR-13565905 Sao Carlos, SP, Brazil; 2.Univ Fed Pernambuco, Campus Vitoria de Santo Antao, Vitoria De Santo Antao, PE, Brazil; 3.Univ Fed Sao Carlos, Dept Ecol & Biol Evolut, Lab Paleoecol & Paleoicnol, Rodovia Washington Luis,Km 235-SP-310, BR-13565905 Sao Carlos, SP, Brazil |
推荐引用方式 GB/T 7714 | Buck, Pedro Victor,Ghilardi, Aline Marcele,Peixoto, Bernardo de C. P. e M.,et al. A new tetrapod ichnotaxon from Botucatu Formation, Lower Cretaceous (Neocomian), Brazil, with comments on fossil track preservation on inclined planes and local paleoecology[J],2017,466:21-37. |
APA | Buck, Pedro Victor,Ghilardi, Aline Marcele,Peixoto, Bernardo de C. P. e M.,dos Reis Fernandes, Luciana Bueno,&Fernandes, Marcelo Adorna.(2017).A new tetrapod ichnotaxon from Botucatu Formation, Lower Cretaceous (Neocomian), Brazil, with comments on fossil track preservation on inclined planes and local paleoecology.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,466,21-37. |
MLA | Buck, Pedro Victor,et al."A new tetrapod ichnotaxon from Botucatu Formation, Lower Cretaceous (Neocomian), Brazil, with comments on fossil track preservation on inclined planes and local paleoecology".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 466(2017):21-37. |
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