Reminiscences of a Fossil Collector T he South Mozambique-Zululand coastal basin was created soon after the break-up of Gondwana, when the newly-formed coastal margin collapsed following the release of the pent-up energy and volcanism that created the Lebombo Mountains. Subsidence was initiated about 120 million years ago, creating a long-lived sedimentary basin which is renowned as one of the great fossil deposits on earth. Its importance was brought to the attention of the palaeontological world by Dr E. C. N. Van Hoepen, then director of the National Museum, Bloemfontein. Van Hoepen’s work on the Zululand fossils was much maligned by his contemporaries; this was a time when only staff of the British Museum were believed capable of producing ‘good’ science. Interestingly, however, on a recent visit to the Natural History Museum in London an eminent palaeontologist said to me, “I think maybe old Van Hoepen was right”! KwaZulu-Natal has one of the greatest fossil deposits on earth. As the only professional palaeontologist in KwaZuluNatal for the last two decades, and one of only two invertebrate palaeontologists in South Africa, I have been privileged to have these deposits almost entirely to myself, with the exception of the odd foray by my colleague in Cape Town, Herbie Klinger. These deposits range in age from Lower Cretaceous to Recent, and span 115 million years of earth history. Over the last 20 years I have amassed a collection of several hundred thousand fossils from all the important fossil-bearing units on the coastal plain. For much of this collecting I was aided by Palmnut Post Vol. 9 No. 1 July 2006 students, colleagues and family. In the early days of collecting, the companionship of my very young family was particularly rewarding. Those were good times. When the children were young, my field work represented the family holiday. I would pack four small children, ranging in age from five to ten years, into the Land Rover, together with camping and collecting paraphernalia, as well as butterfly nets and fishing rods, and head for a week’s camping at False Bay, never forgetting to stop at Mrs. B’s, near Mtunzini, to buy pies for breakfast. During the day we collected fossils. However the greatest delight was the ride; they used to love sitting on the roof of the Land Rover, clinging to the roof rack while I drove along bumpy roads through the bush to reach a fossil locality. Unfortunately some over-diligent park warden brought that fun-part of the collecting to an end. Once parked, they would follow me through the bush like the Pied Piper of Hamelin, never with the slightest thought of danger. Well I remember them following me through the thick bush of Mkuze Game Reserve, often with grass above their heads. While my heart pounded with trepidation as to what I would do if there were a rhino or Black Mamba around the next corner, they followed trustingly behind, always interested in every little creature we came across - digging ‘curlie-wurlies’ (antlion larvae) from the sand was particular fun. Mostly they couldn’t wait to collect fossils. My daughter Fern was the first to discover fossil crabs littering the beaches north of Richards Bay, and my youngest son Michael became a fossil collector par excellence and, in later years when his other siblings had outgrown ‘the bush’, the most able of field assistants. Many of the new species described by me over the years owe their discovery to his keen eyesight and enthusiasm. For me, the enjoyment of geology and fossil collecting is in getting out into the bush, away from humans, and to enjoy the natural world, the birds, the animals, the reptiles, insects and plants. Moreover, fossil collecting is like having Christmas every day. You never know what the next clout of a hammer will bring, or what is going to be discovered at the next outcrop. There is a perpetual sense of anticipation and excitement that few have had the pleasure of experiencing. It was never work. Spending so much time in the bush allowed me to indulge my other passions. In the beginning it was arming the children with butterfly nets and acquainting them with the local butterflies. I will never forget my son’s disappointment when he had the opportunity of catching his first Saffron, Iolaphilus pallene, a small creamy-yellow lycaenid. Unfortunately it was sitting in the middle of its larval foodplant, Blue Sourplum, Ximenia americana, and as he swiped the net tangled in the thorns of the shrub and the butterfly flew away. He was equally disappointed when his Dad interfered with his attempts to catch his first Hutchinson’s Highflier, Aphnaeus hutchinsoni, sitting on a muddy patch, its silver-spotted underside gleaming in the sunlight, and this too escaped. However, to Clive Quickelberge’s delight, he discovered the first breeding colony of the Azure Hairstreak, Hypolycaena caeculus, in KwaZulu-Natal, as well as capturing a Speckled Sulphur Tip, Colotis agoye, in the Drakensberg. It was while my son was charging around the bush collecting butterflies, something that I had done with my brother so many years ago, that I began to ponder what else I could do. Butterflies were so well known, almost boring. Then it came to me – the Emperor moths that had been popularized by my eminent colleague at the Bulawayo Museum, Elliot Pinhey. Pinhey, one of the world’s most respected entomologists, had resigned from the Bulawayo Museum on being told that the George Arnold collection of type Hymenoptera was to be given to the Cape Town Museum in exchange for the politically-sensitive Zimbabwe Birds. This collection numbered hundreds of types and was the most important of the Museum’s holdings. The ensuing fracas between me and management saw me, and subsequently several of my supportive colleagues, fired from the National Museum; where politics and science clash there is only one winner. No one had written a book on the Emperor moths of KwaZuluNatal and so my son and I set about collecting and breeding the local species. This meant our days were spent fossil collecting, 25 although he turned more stones over in anticipation of frogs and snakes than fossils. In the evenings he would fish, and at night we would collect moths. Initially this meant visiting the lighted public toilets several times during the night to see what had arrived. The reason we selected Emperor moths was because they have no proboscis and hence did not feed. The sole purpose of their existence is to breed and reproduce the species. Moreover, once a female lays her eggs she dies. Thus we didn’t have to kill them. Females that came to lights could be put in shoe boxes where, if we were lucky, they would lay some eggs which we could then rear to maturity and document their life histories. The problem with this was that we had to have their larval foodplants readily available. This necessitated another major hobby - learning about the indigenous flora and growing indigenous plants from seed. Thus, from then on, we not only collected fossils, butterflies, moths, snakes and frogs, we also picked the fruits and berries from every bush and tree we passed; our pockets hung low. The seeds would be planted when we got home and, soon, I had a veritable nursery which was very time consuming. Now, as we walked through the bush, we could recognize lepidopteran food-plants and search for eggs and caterpillars. After seven years of collecting, breeding and documentation, our work on the KZN emperor moths reached publication stage. It was 26 then I decided to take early retirement from the University, create my own publishing house, and publish the book myself. And so Peroniceras Press was born; Peroniceras is a common Cretaceous ammonite in Zululand, particularly along the Mzinene River. To create the book it was necessary for me to become artist, layout designer, editor, proof-reader and desktop publisher. Eventually in 2002, our book on The emperor moths of KwaZuluNatal was published. Unfortunately most of the people who helped along the way expected free copies and, horrifyingly, the response of all too many conservationists was to look at the book and say, “I’m not interested in moths”. The stated intention of the book was to provide the information necessary for people to become interested! As such it was a financial catastrophe, but an achievement of which we are both proud. Lepidoptera were, however, not our only interest. Our herpetological experiences were great fun. Whenever there was light rain we would drive the roads at night, looking for frogs and snakes. We hardly ever found snakes, although frogs were aplenty. The road towards Monzi was particularly fruitful as, at one point, there are vleis on both sides with constant frog traffic between the two. Especially common were Brown-backed Tree Frogs, Leptopelis mossambicus, which have the endearing habit of covering their eyes with their front feet when threatened. We spent many hours rescuing these delightful creatures from the traffic that raced at break-neck speed along this straight open piece of road. One can only wonder at how many countless thousands of frogs, many rare species, are destroyed each year in this way. Another exciting discovering was to find a recent emergence of small African Bullfrogs, Pyxicephalus edulis, hopping around everywhere on the road to Charter’s Creek, as was our first capture of the black and red Banded Rubber Frog, Phrynomantis bifasciatus. I was also delighted to catch and photograph what I believed to be a Leopard Toad, Bufo pardalis, at False Bay, far from previous known records; however, despite its big dark leopard-like blotches, I could not convince Angelo Lambiris who decided it was a hybrid of unknown parentage. I toyed with going back and collecting the specimen, but decided against it as it would probably end up in a bottle of alcohol. As it was, this was the last time I saw this toad anyway, since it lived not far from the hole of a large Forest Cobra. Despite my love of animals it was the dislike of killing them that drove me away from zoology. With palaeontology, I could enjoy and contemplate the wondrous diversity of the natural world without having to kill anything, a real sop. However, I did once have to convince the University ethics committee that my fossils had been dead countless millions of years, and did not feel any pain when I bashed them with a hammer! For me our snake escapades were happily few, although disappointingly so for my herpetologically-mad son. I spent most of my field years walking the bush in flipflops, believing the noise I made would scare away mambas and cobras, and that puff adders didn’t live in the dense grass and thick bush I was treading. That was until one day, near Mkuze, my son and I had to rescue a large puff adder from heavy traffic flashing along the freeway; it had just emerged from dense long grass on the roadside! Obviously the noise I made did scare away most of the mambas, as only twice did I have frightening experiences. The first was at Mtubatuba where a small borrow-pit yielded beautiful opalized wood. I was leading a student excursion, with 20-30 noisy, mostly disinterested students following me along a footpath through thick bush, on the way to the deposit. Hearing a noise in the bushes, I turned to the student behind me and said, “Gee that was a BIG snake”. Peering into the bushes alongside the path, there was a large Black Mamba staring straight at me, less than 2 m away. I had the choice of shouting “Snake” and creating absolute pandemonium, or keeping quiet and hoping that no-one would decide to relieve themselves in the bushes at that point. I chose the latter and fortunately the students survived to write their exams, oblivious of how close they had come to the deadliest of African snakes. The second time was with my son in the Palmiet Nature Reserve. We had just seen a rather large olive snake slither into a crevice among rocks; I had contemplated being the ‘big deal’ and grabbing it by its tail but the valour was low and the discretion high – just as well. When we returned a little later we found it, a Mozambique Spitting Cobra, sunning itself on a rock at the entrance to the crevice. Having left the cobra, we walked down a footpath. We hadn’t gone a hundred yards when my son bent down to pick up a stone, and a snake hissed at him. As he tried to grab the snake, which looked like a Striped Skaapsteker, I gazed to my right and there, just a few metres away, was a juvenile Black Mamba, reared up and with gaping black mouth. Palmnut Post Vol. 9 No. 1 July 2006 By now I was a gibbering wreck and dragged my protesting son home. Interestingly he returned a few days later to catch the hissing snake and it turned out to be a peculiar variety of Night Adder in which the pale markings had almost coalesced to form stripes. Perhaps one of the disappointments was never seeing a Gaboon Adder, although we did find our first Marbled Tree Snake, Dipsadaboa aulica, in the camp site at Monzi. Other than that, I once encountered a cobra returning from an evening drink at False Bay; it spread its hood and, after a brief share of pleasantries, we went our separate ways. Fortunately crocodile experiences were also few. In retrospect the most frightening was on one of my first student excursions to Zululand. We had been collecting fossils along the cliffs of the Nibela Peninsula. It was scorchingly hot and we were all sweaty and exhausted. Looking across the still waters at Hell’s Gate I saw a herd of hippo, a few hundred metres offshore, silently watching us. Somewhere along the way I had gained the ridiculous idea that because hippos and crocs do not get on, if there were hippos nearby there wouldn’t be any crocs. So I let 20-30 noisy, rowdy students plunge into the murky muddy waters of Lake St Lucia to splash and frolick for five minutes. Needless to say, when the park ranger found out what I had done, he was aghast and showed me the skull of a HUGE crocodile that had been poached, by baited hook, just a few hundred metres away a fortnight before! The other time was along the lower reaches of the Mfolozi, at Warner Drain. I was with my former teacher and good friend, John McCarthy, collecting fossils from the Monzi Formation which was exposed in an undercut bank of the river. I could see a large marine snail which I knew had not been collected from this formation before. In order to get it, John had to hang onto my legs while I dangled upside down over the bank, trying to hack the fossil from the rock. However, my nerve did not hold, as on the muddy bank opposite there were crocodile footprints and tail furrows; some fossils are just not worth it. Once supper had been finished, one of the delights for my children was to sit on the roof of the Land Rover while we took a slow night drive through the dry sand forest. The greatest fun was when one of their siblings got hit by a branch, especially when the youngest decided to grab the branch of a thorn tree, but there were usually nyala by the roadside, or genets and galagoes in the trees. Escapades with large predators were few. Palmnut Post Vol. 9 No. 1 July 2006 One evening we surprised a beautiful young leopard only a few hundred metres from our camp site at Lister’s Point; appropriately it had just left the Ingwe Trail! Another night was more frightening. Being inherently unsociable, my son and I decided to pitch our very small flimsy tent in the middle of the forest at Sodwana Bay, away from the rowdy mass of visiting Vaalies. In the middle of the night, well after midnight, all hell broke loose. The monkeys in the trees above us started screaming, and there was loud screeching and pandemonium among the banded mongooses which had been foraging in the leaf litter around our tent for some time. My son and I sat bolt upright, eyes as big as cart wheels, my head against the roof of the very small tent and shoulders against the sides. The next thing, with a terrified screech, a mongoose ran straight into the flimsy nylon of our tent. I was rigid with fright and too terrified to stick my head out of the tent to find out what was going on. To this day, I believe a leopard had been prowling round our tent. The only other experience was being scared witless by a rather tame hippo that used to frequent the shores of Lister’s Point. Late one moonless night, on our way to check the toilet lights for moths, we had to pass particularly close to a clump of reeds where obviously the hippo was browsing. It didn’t hear us, and we didn’t see it. That is until we were almost on top of each another, when it leapt with a monumental splash into the lake, and we sky-rocketed the other way. A lessharrowing experience, but almost as heart stopping, occurred when I was walking along a deep narrow erosion gulley, barely wide enough for me, and was suddenly cornered a large Water Monitor; if I remember correctly, the lizard had 100 legs, all scrabbling in different directions as it frantically scrambled to escape up the steep embankment. Of particular interest for me, was my wife and I coming across ‘red’ squirrels in the forest at St Lucia estuary. As a youngster I had kept and bred both forest-dwelling Red Squirrels and savanna Yellow-footed Squirrels for a number of years; but these ‘red’ forest squirrels were yellow! As Peter Taylor patiently pointed out to me, a different subspecies was involved. Although birds have been one of the main passions of my life, there were surprisingly few noteworthy encounters, although a glimpse of a Pink-throated Twinspot in the undergrowth near Kosi Bay was memorable, as were Reichenow’s Loerie in the forest at St Lucia. The evocative call of the Fish Eagles around Lake St Lucia lingers with all who love the African bush although, sadly, only once in 20 years did I see a Bateleur gliding majestically along the Lower Mkuze. I suspected that a large brown raptor with peculiar laboured flight, spotted on the Mozambique coastal plain, might have been a Banded Snake Eagle; it would have been a first for me but I could not confirm it. At one period my son and I developed ichthyological interests, and spent much time of one excursion dragging a mosquito net through every shallow stream and pond we encountered. Interestingly, in the Mfolozi River we caught the endangered Checked Goby, Redigobius dewaali. We also caught bilharzia. Fortunately our only other serious encounter with protozoans was in the Gona-re-Zhou on a moth-collecting trip. About a week after returning from Zimbabwe, I developed a splitting headache. I had left my son butterfly collecting and when I found him collapsed under a bush with an equally severe headache I knew we had malaria. It seems, because we received prompt treatment, we suffered no lasting effects, although I well remember my son saying he was going to burst into flames, his temperature was so high. Such are the joys of fossil collecting in Africa. Prof. Michael Cooper Trustee and Research Associate Durban Natural Science Museum All illustrations & photographs by Prof. Michael Cooper 27
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